1© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
One world. One KEMET
Benets
• Low power consumption (< 140 mW)
• Super compact and lightweight
• Flat package for dense mounting
• Low magnetic interference
• Tube or embossed tape and reel packaging
• UL recognized (E73266) and CSA certied (LR46266)
• Surface mount and through-hole options
Overview
The KEMET UC2/UD2 miniature signal relays offer a super
compact case size in a at package. Minimal board space
is consumed with either a through-hole or surface mount
conguration. These relays are recognized by UL and CSA, while
also being compliant with Part 68 of the FCC’s 1,500 V surge
capacity.
Applications
• Electronic switching systems
• PBX
• Terminal equipment
• Telephone systems
Miniature Signal Relays
UC2/UD2 Series
Part Number System
UD2- 3 S NU -L
Series Coil Voltage Latch Type Lead Type Packaging
UC2- = Through-hole mount
UD2- = Surface mount
3 = 3 VDC
4.5 = 4.5 VDC
5 = 5 VDC
9 = 9 VDC
12 = 12 VDC
Blank = Non-latch type
S = Single coil latch type
NU = Standard
NJ = Trimmed
NE = Low power consumption (Non-latch)
NUN = Minimum footprint
NEN = Low power consumption (Non-latch),
Minimum footprint
Blank = Tube
-L = Embossed tape on reel
2© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Dimensions – Millimeters
UC2 Series
B Maximum
P2
P3
0.2
D Maximum
H Maximum
0.4
P1
P1
3.2
1.5 1.5
D Maximum
H Maximum
K
0.4
P1
P1
3.2
1.5 1.5
0.2
P2
B Maximum
K
UD2 Series
B Maximum
P2
P3
0.2
D Maximum
H Maximum
0.4
P1
P1
3.2
1.5 1.5
D Maximum
H Maximum
K
0.4
P1
P1
3.2
1.5 1.5
0.2
P2
B Maximum
K
Series D H B P
1
P
2
P
3
K
UC2 (NU, NE)
10.6
5.3
6.5
2.2
5.08
—
3.4
UC2 (NJ)
10.6
5.3
6.5
2.2
5.08
—
2.8
UD2 (NU, NE)
10.6
5.45
6.5
2.2
5.08
8.4
0.2
UD2 (NUN, NEN)
10.6
6.0
6.5
2.2
5.08
6.8
0.2
General tolerance: ±0.3
Tolerance of lead pitch: ±0.15
3© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Pin Congurations
Bottom view
-
+
+
-
RS
+
-
S: Coil polarity for Set
R: Coil polarity for Reset
1 2 3 4
8 7 6 5
Single coil latch type
(Reset position)
Non-latch type
(Non-energized position)
1 2 3 4
8 7 6 5
Direction mark
Direction mark
Safety Standards and Ratings
Certication Body
Mark
Specication
File Number
UL
Part number Manufacturer
Country of origin
Date code
Direction mark
(pin No. 1 and 10)
UL, CSA marking
0501F
EA2-5NU
JAPAN
0501F
EA2-5NU
JAPAN
UL Recognized
(UL508)1E73266 30 VDC, 1 A (resistive)
110 VDC, 0.3 A (resistive)
125 VAC, 0.5 A (resistive)
CSA
Part number Manufacturer
Country of origin
Date code
Direction mark
(pin No. 1 and 10)
UL, CSA marking
0501F
EA2-5NU
JAPAN
0501F
EA2-5NU
JAPAN
CSA Certied
(CSA 22.2 #14)2LR46266
1 Spacing: UL840
2 Spacing: CSA std950
Certication Body
Mark
Specication
File Number
Class
Rating
TUV TUV Certied
(EN61810) 2050596 Basic insulation
Creepage and clearance of coil to
contact is more than 2 mm
(According to EN60950)
Environmental Compliance
All KEMET relays are RoHS Compliant.
4© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Table 1 – Ratings & Part Number Reference
(1) To complete KEMET part number, leave blank for Non-latch or insert S for Single coil. Designates latch type.
1 Only available as Non-latch.
Part Number Nominal Coil Voltage
(VDC) Lead Type Packaging
UC2-3(1)NU
3
Radial
Tube
UC2-4.5(1)NU
4.5
Radial
Tube
UC2-5(1)NU
5
Radial
Tube
UC2-9(1)NU
9
Radial
Tube
UC2-12(1)NU
12
Radial
Tube
UC2-3NE1
3
Radial, Low power consumption
Tube
UC2-4.5NE1
4.5
Radial, Low power consumption
Tube
UC2-5NE1
5
Radial, Low power consumption
Tube
UC2-3(1)NJ
3
Trimmed Radial
Tube
UC2-4.5(1)NJ
4.5
Trimmed Radial
Tube
UC2-5(1)NJ
5
Trimmed Radial
Tube
UC2-9(1)NJ
9
Trimmed Radial
Tube
UC2-12(1)NJ
12
Trimmed Radial
Tube
UD2-3(1)NU
3
Surface mount
Tube
UD2-4.5(1)NU
4.5
Surface mount
Tube
UD2-5(1)NU
5
Surface mount
Tube
UD2-9(1)NU
9
Surface mount
Tube
UD2-12(1)NU
12
Surface mount
Tube
UD2-3NE1
3
Surface mount, Low power consumption
Tube
UD2-4.5NE1
4.5
Surface mount, Low power consumption
Tube
UD2-5NE1
5
Surface mount, Low power consumption
Tube
UD2-3(1)NU-L
3
Surface mount
Tape on Reel
UD2-4.5(1)NU-L
4.5
Surface mount
Tape on Reel
UD2-5(1)NU-L
5
Surface mount
Tape on Reel
UD2-9(1)NU-L
9
Surface mount
Tape on Reel
UD2-12(1)NU-L
12
Surface mount
Tape on Reel
UD2-3NE-L1
3
Surface mount, Low power consumption
Tape on Reel
UD2-4.5NE-L1
4.5
Surface mount, Low power consumption
Tape on Reel
UD2-5NE-L1
5
Surface mount, Low power consumption
Tape on Reel
UD2-3(1)NUN
3
Surface mount, Minimum footprint
Tube
UD2-4.5(1)NUN
4.5
Surface mount, Minimum footprint
Tube
UD2-5(1)NUN
5
Surface mount, Minimum footprint
Tube
UD2-9(1)NUN
9
Surface mount, Minimum footprint
Tube
UD2-12(1)NUN
12
Surface mount, Minimum footprint
Tube
UD2-3NEN1
3
Surface mount, Low power consumption, Minimum Footprint
Tube
UD2-4.5NEN1
4.5
Surface mount, Low power consumption, Minimum Footprint
Tube
UD2-5NEN1
5
Surface mount, Low power consumption, Minimum Footprint
Tube
UD2-3(1)NUN-L
3
Surface mount, Minimum footprint
Tape on Reel
UD2-4.5(1)NUN-L
4.5
Surface mount, Minimum footprint
Tape on Reel
UD2-5(1)NUN-L
5
Surface mount, Minimum footprint
Tape on Reel
UD2-9(1)NUN-L
9
Surface mount, Minimum footprint
Tape on Reel
UD2-12(1)NUN-L
12
Surface mount, Minimum footprint
Tape on Reel
UD2-3NEN-L1
3
Surface mount, Low power consumption, Minimum Footprint
Tape on Reel
UD2-4.5NEN-L1
4.5
Surface mount, Low power consumption, Minimum Footprint
Tape on Reel
UD2-5NEN-L1
5
Surface mount, Low power consumption, Minimum Footprint
Tape on Reel
5© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Land Pattern – Millimeters
UC2 Series (bottom view)
V
0.8
X
1.5 1.5
3.2 2.2 2.2
7.6
8 - ø 0.85
1.51.5 3.2 2.2 2.2
7.6
V
UD2 Series (top view)
V
0.8
X
1.5 1.5
3.2 2.2 2.2
7.6
8 - ø 0.85
1.51.5 3.2 2.2 2.2
7.6
V
Series
V
X
UC2 (NU, NJ, NE)
5.08
—
UD2 (NU, NE)
6.74
1.86
UD2 (NUN, NEN)
5.94
2.66
6© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Soldering Process
UC2 – Through-hole Mounting
Automatic Soldering
Preheating: 110–120°C / 110 seconds (maximum)
Solder temperature: 260°C maximum
Solder time: 5 seconds maximum
Note: KEMET recommends cooling down a printed circuit board to less than 110°C within 40 seconds after soldering.
Manual Soldering
Solder temperature: 350°C maximum
Solder time: 3 seconds maximum
UD2 – Surface Mounting
Note:
Temperatureproleshowsprintedcircuitboardsurfacetemperatureontherelayterminalportion.
PleaseconsultKEMETifyouwishtouseatemperatureproleotherthanabove.
IRS Method
200
180
190 (Maximum 300)
45 (Maximum 70)
70 (Maximum 120)
220
200
180
Temperature
(˚C)
220
Maximum 240˚C
Time (seconds)
7© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Contact Specications
*1 This value is a reference value in the resistance load. Minimum capacity changes depending on the switching frequency, environment temperature, and load.
*2 Rise time: 10 µs; decay time to half crest: 160 µs.
*3 Rise time: 2 µs; decay time to half crest: 10 µs.
*4 This shows the number of operations with fatal defects. Stable characteristics are maintained for 1 x 107 operations.
Coil Specications
Non-latch Type (@ 20°C)
Nominal Coil Voltage
(VDC)
Coil Resistance
(Ω) ±10%
Operating Voltage1
(VDC)
Release Voltage1
(VDC)
Nominal Operating
Power (mW)
3 64.3 2.25 0.3 140
4.5 145 3.38 0.45 140
5178 3.75 0.5 140
9579 6.75 0.9 140
12 1028 9.0 1.2 140
1 Test by pulse voltage.
Item UC2/UD2
Contact Form 2 Form C
Contact Material Silver alloy with gold alloy overlay
Contact Ratings
Maximum Switching Power 30 W, 37.5 VA
Maximum Switching Voltage 220 VDC, 250 VAC
Maximum Switching Current 1 A
Maximum Carrying Current 1 A
Minimum Contact Ratings 10 mVDC, 10 µA*1
Initial Contact Resistance 100 mΩ maximum (initial)
Operating Time (excluding bounce) Approximately 2 milliseconds
Release Time (excluding bounce) Approximately 1 milliseconds
Insulation Resistance 1,000 MΩ @ 500 VDC
Withstand Voltage
Between Open Contacts 1,000 VAC (for one minute), 1,500 V surge (10 x 160 µs)*2
Between Adjacent Contacts 1,000 VAC (for one minute), 1,500 V surge (10 x 160 µs)*2
Between Coil and Contacts 1,500 VAC (for one minute), 2,500 V surge (2 x 10 µs)*3
Shock Resistance 735 m/s2 (75 G) – misoperation
980 m/s2 (100 G) – destructive failure
Vibration Resistance 10 to 55 Hz, double amplitude 3 mm (20 G) – misoperation
10 to 55 Hz, double amplitude 5 mm (30 G) – destructive failure
Ambient Temperature -40 to +85°C
-40 to +70°C (Low power consumption type)
Coil Temperature Rise 18°C at nominal coil voltage (140 mW)
Running Specications
Non-load 5 x 107 operations (Non-latch type)*4
1 x 107 operations (Latch type)
Load 30 VDC 1 A (resistive), 1 x 105 operations @ 20°C, 1 Hz
125 VAC 0.3 A (resistive), 1 x 105 operations @ 20°C, 1 Hz
Weight Approximately 0.8 g
8© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Coil Specications cont’d
Single Coil Latch Type (@ 20°C)2
Nominal Coil Voltage
(VDC)
Coil Resistance
(Ω) ±10%
Set Voltage1
(VDC)
Reset Voltage1
(VDC)
Nominal Operating
Power (mW)
390 2.25 2.25 100
4.5 202.5 3.38 3.38 100
5250 3.75 3.75 100
9810 6.75 6.75 100
12 1440 9.0 9.0 100
1 Test by pulse voltage.
2Latchtyperelaysshouldbeinitializedtoaknownpositionbeforeusing.Onlythespeciedpolarityshouldbeusedtoenergizethecoil.
Non-latch, Low Power Consumption (NE, NEN) Type (@ 20°C)
Nominal Coil Voltage
(VDC)
Coil Resistance
(Ω) ±10%
Operating Voltage1
(VDC)
Release Voltage1
(VDC)
Nominal Operating
Power (mW)
390 2.4 0.3 100
4.5 202.5 3.6 0.45 100
5250 4.0 0.5 100
1 Test by pulse voltage.
Recommended Relay Drive Conditions
Coil Type Rating Ambient Temperature
Non-latch Voltage: ≤ ±5% of nominal voltage -40 to +85°C
Non-latch (Low power consumption type) -40 to +70°C
Single Coil
Square pulse (rise and fall time is rapid)
Pulse height: ≤ ±5% of nominal voltage
Pulse Width: > 10 ms
-40 to +85°C
Marking
Top view
UD2-4.5NU
JAPAN
0501F
UD2-4.5NU
JAPAN
0501F
Part number Date code
Country of origin
Manufacturer
Direction mark
(
pin No. 1 and 8)
9© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Maximum Coil Voltage
Maximum value of permissible alteration
Performance Data
Coil Temperature Rise
Temperature is measured by coil resistance
Switching Capacity
Maximum Values
Applied Voltage vs. Timing
(Sample: UC2-5NU)
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
8
PERFORMANCE DATA
0 100 200 300 400
60
40
20
0
A
pplied power (mW)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient temperature (°C)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
0 100 150 200 250
0
A
pplied power (mW)
1
2
3
4
0 100 200 300 400
0
A
pplied power (mW)
1
2
3
4
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
� SWITCHING CAPACITY
This is allowed maximum value.
Inquire with NEC TOKIN for maximum value under continuous
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
� APPLIED VOLTAGE VS. TIMING (Sample:UC2-5NU)
(
Without coil diode
)
DC(Resistive)
AC(Resistive)
250VAC
220VDC
A
pplied power 0.1W
A
pplied power 0.14W
Coil temperature
rise (°C )
Coil
temperature
rise (°C)
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
Operate
time
(ms)
Release
time
(ms)
Low power consumption type
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
8
PERFORMANCE DATA
0 100 200 300 400
60
40
20
0
A
pplied power (mW)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient temperature (°C)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
0 100 150 200 250
0
A
pplied power (mW)
1
2
3
4
0 100 200 300 400
0
A
pplied power (mW)
1
2
3
4
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
� SWITCHING CAPACITY
This is allowed maximum value.
Inquire with NEC TOKIN for maximum value under continuous
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
� APPLIED VOLTAGE VS. TIMING (Sample:UC2-5NU)
(
Without coil diode
)
DC(Resistive)
AC(Resistive)
250VAC
220VDC
A
pplied power 0.1W
A
pplied power 0.14W
Coil temperature
rise (°C )
Coil
temperature
rise (°C)
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
Operate
time
(ms)
Release
time
(ms)
Low power consumption type
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
8
PERFORMANCE DATA
0 100 200 300 400
60
40
20
0
A
pplied power (mW)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient temperature (°C)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
0 100 150 200 250
0
A
pplied power (mW)
1
2
3
4
0 100 200 300 400
0
A
pplied power (mW)
1
2
3
4
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
� SWITCHING CAPACITY
This is allowed maximum value.
Inquire with NEC TOKIN for maximum value under continuous
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
� APPLIED VOLTAGE VS. TIMING (Sample:UC2-5NU)
(
Without coil diode
)
DC(Resistive)
AC(Resistive)
250VAC
220VDC
A
pplied power 0.1W
A
pplied power 0.14W
Coil temperature
rise (°C )
Coil
temperature
rise (°C)
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
Operate
time
(ms)
Release
time
(ms)
Low power consumption type
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
8
PERFORMANCE DATA
0 100 200 300 400
60
40
20
0
A
pplied power (mW)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient temperature (°C)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
0 100 150 200 250
0
A
pplied power (mW)
1
2
3
4
0 100 200 300 400
0
A
pplied power (mW)
1
2
3
4
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
� SWITCHING CAPACITY
This is allowed maximum value.
Inquire with NEC TOKIN for maximum value under continuous
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
� APPLIED VOLTAGE VS. TIMING (Sample:UC2-5NU)
(
Without coil diode
)
DC(Resistive)
AC(Resistive)
250VAC
220VDC
A
pplied power 0.1W
A
pplied power 0.14W
Coil temperature
rise (°C )
Coil
temperature
rise (°C)
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
Operate
time
(ms)
Release
time
(ms)
Low power consumption type
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
8
PERFORMANCE DATA
0 100 200 300 400
60
40
20
0
A
pplied power (mW)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient temperature (°C)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
0 100 150 200 250
0
A
pplied power (mW)
1
2
3
4
0 100 200 300 400
0
A
pplied power (mW)
1
2
3
4
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
� SWITCHING CAPACITY
This is allowed maximum value.
Inquire with NEC TOKIN for maximum value under continuous
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
� APPLIED VOLTAGE VS. TIMING (Sample:UC2-5NU)
(
Without coil diode
)
DC(Resistive)
AC(Resistive)
250VAC
220VDC
A
pplied power 0.1W
A
pplied power 0.14W
Coil temperature
rise (°C )
Coil
temperature
rise (°C)
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
Operate
time
(ms)
Release
time
(ms)
Low power consumption type
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
8
PERFORMANCE DATA
0 100 200 300 400
60
40
20
0
A
pplied power (mW)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient temperature (°C)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
0 100 150 200 250
0
A
pplied power (mW)
1
2
3
4
0 100 200 300 400
0
A
pplied power (mW)
1
2
3
4
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
� SWITCHING CAPACITY
This is allowed maximum value.
Inquire with NEC TOKIN for maximum value under continuous
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
� APPLIED VOLTAGE VS. TIMING (Sample:UC2-5NU)
(
Without coil diode
)
DC(Resistive)
AC(Resistive)
250VAC
220VDC
A
pplied power 0.1W
A
pplied power 0.14W
Coil temperature
rise (°C )
Coil
temperature
rise (°C)
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
Operate
time
(ms)
Release
time
(ms)
Low power consumption type
10© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Performance Data cont’d
Operate and Release Voltage vs. Ambient Temperature
This shows a typical change of operate (release) voltage. The value of must operate is estimated, so coil voltage must be applied higher
than this value for safe operation. For hot start operation, please inquire with KEMET.
Running Test (Non-load)
(Load: none; Drive: 5 VDC, 50 Hz, 50% duty; Ambient Temperature: room temperature; Sample: UC2-5NU, 20 pieces)
Running Test (Load)
(Load: 50 VDC, 0.1 A resistive; Drive: 5 VDC, 5 Hz, 50% duty; Ambient Temperature: 85°C; Sample: UC2-5NU, 10 pieces)
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
9
10000
1000
100
10
-40 -20 0 20 40 60 80 100
100
80
60
40
20
0
A
mbient temperature (°C)
� OPERATE AND RELEASE VOLTAGE VS.AMBIENT TEMPERATURE
This shows a typical change of operate (release) voltage. The value of must operate is estimated, so coil voltage must be applied
more than this value for safety operation. For hot start operation, please inquire with NEC TOKIN.
Must operate voltage
Operate voltage (typical)
Release volta
g
e
(
t
yp
ical
)
Ratio of nominal
coil voltage (%)
Operations (×104)
� RUNNING TEST (Non-load)
(Load: none, Drive:5VDC，50Hz，50%duty, Ambient temperature :room temperature, Sample:UC2-5NU ,20pieces)
0 20 50 100 500 1000
10000
1000
100
10
Contact
resistance
(mΩ)
5
4
3
2
1
0
Operations (×104)
0 20 50 100 500 1000
Operate voltage
R
e
l
ease
v
o
l
tage
Operate
voltage
(V)
Release
voltage
(V)
� RUNNING TEST(Load)
(Load: 50VDC 0.1A resistive,Drive:5VDC,5Hz,50%duty,Ambient temperature:85 °C, Sample:UC2-5NU ,10pieces)
Contact
resistance
(mΩ)
0 2 5 10 50 100
Operations (×104)
5
4
3
2
1
0
0 2 5 10 50 100
Operate
voltage
(V)
Release
Operations (×104)
Operate voltage
Release voltage
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
9
10000
1000
100
10
-40 -20 0 20 40 60 80 100
100
80
60
40
20
0
A
mbient temperature (°C)
� OPERATE AND RELEASE VOLTAGE VS.AMBIENT TEMPERATURE
This shows a typical change of operate (release) voltage. The value of must operate is estimated, so coil voltage must be applied
more than this value for safety operation. For hot start operation, please inquire with NEC TOKIN.
Must operate voltage
Operate voltage (typical)
Release volta
g
e
(
t
yp
ical
)
Ratio of nominal
coil voltage (%)
Operations (×104)
� RUNNING TEST (Non-load)
(Load: none, Drive:5VDC，50Hz，50%duty, Ambient temperature :room temperature, Sample:UC2-5NU ,20pieces)
0 20 50 100 500 1000
10000
1000
100
10
Contact
resistance
(mΩ)
5
4
3
2
1
0
Operations (×104)
0 20 50 100 500 1000
Operate voltage
R
e
l
ease
v
o
l
tage
Operate
voltage
(V)
Release
voltage
(V)
� RUNNING TEST(Load)
(Load: 50VDC 0.1A resistive,Drive:5VDC,5Hz,50%duty,Ambient temperature:85 °C, Sample:UC2-5NU ,10pieces)
Contact
resistance
(mΩ)
0 2 5 10 50 100
Operations (×104)
5
4
3
2
1
0
0 2 5 10 50 100
Operate
voltage
(V)
Release
Operations (×104)
Operate voltage
Release voltage
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
9
10000
1000
100
10
-40 -20 0 20 40 60 80 100
100
80
60
40
20
0
A
mbient temperature (°C)
� OPERATE AND RELEASE VOLTAGE VS.AMBIENT TEMPERATURE
This shows a typical change of operate (release) voltage. The value of must operate is estimated, so coil voltage must be applied
more than this value for safety operation. For hot start operation, please inquire with NEC TOKIN.
Must operate voltage
Operate voltage (typical)
Release volta
g
e
(
t
yp
ical
)
Ratio of nominal
coil voltage (%)
Operations (×104)
� RUNNING TEST (Non-load)
(Load: none, Drive:5VDC，50Hz，50%duty, Ambient temperature :room temperature, Sample:UC2-5NU ,20pieces)
0 20 50 100 500 1000
10000
1000
100
10
Contact
resistance
(mΩ)
5
4
3
2
1
0
Operations (×104)
0 20 50 100 500 1000
Operate voltage
R
e
l
ease
v
o
l
tage
Operate
voltage
(V)
Release
voltage
(V)
� RUNNING TEST(Load)
(Load: 50VDC 0.1A resistive,Drive:5VDC,5Hz,50%duty,Ambient temperature:85 °C, Sample:UC2-5NU ,10pieces)
Contact
resistance
(mΩ)
0 2 5 10 50 100
Operations (×104)
5
4
3
2
1
0
0 2 5 10 50 100
Operate
voltage
(V)
Release
Operations (×104)
Operate voltage
Release voltage
11© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Performance Data cont’d
Breakdown Voltage
(Sample: UC2-5NU, 10 pieces)
Alteration of Voltage in Dense Mounting
(magnetic interference)
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
10
100
50
0 0.5 1.0 1.5 2.0
Breakdown voltage (K V)
100
50
0 1.0 1.5 2.0 2.5
100
50
0 1.5 2.0 2.5 2.5over
� BREAKDOWN VOLTAGE
Sample: UC2-5NU 10peices
(a) Between open contacts
(
b
)
Between ad
j
acent contacts
(C) Between coil and
� ALTERNATION OF VOLTAGE IN DENSE MOUNTING (Magnetic interference)
Distribution
Distribution
(
%
)
Di
s
tri
bu
ti
o
n
(%)
Breakdown voltage (K V)
Breakdown voltage (K V)
ON ON OFF OFF
ON
ON
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
e
f
Device under test
a b c d
a b c d e
f
+40
+30
+20
+10
0
-10
-20
-30
-40
Mountin
g
la
y
out
A
lternation of operate voltage
Ratio of
alternation (%)
+40
+30
+20
+10
0
-10
-20
-30
-40
Mounting layout
a b c d e
f
Ratio of
alternation (%)
A
lternation of operate voltage
2.5mm
3mm
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
10
100
50
0 0.5 1.0 1.5 2.0
Breakdown voltage (K V)
100
50
0 1.0 1.5 2.0 2.5
100
50
0 1.5 2.0 2.5 2.5over
� BREAKDOWN VOLTAGE
Sample: UC2-5NU 10peices
(a) Between open contacts
(
b
)
Between ad
j
acent contacts
(C) Between coil and
� ALTERNATION OF VOLTAGE IN DENSE MOUNTING (Magnetic interference)
Distribution
Distribution
(
%
)
Di
s
tri
bu
ti
o
n
(%)
Breakdown voltage (K V)
Breakdown voltage (K V)
ON ON OFF OFF
ON
ON
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
e
f
Device under test
a b c d
a b c d e
f
+40
+30
+20
+10
0
-10
-20
-30
-40
Mountin
g
la
y
out
A
lternation of operate voltage
Ratio of
alternation (%)
+40
+30
+20
+10
0
-10
-20
-30
-40
Mounting layout
a b c d e
f
Ratio of
alternation (%)
A
lternation of operate voltage
2.5mm
3mm
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0894EMDD03VOL03E
UC2/UD2 SERIES
10
100
50
0 0.5 1.0 1.5 2.0
Breakdown voltage (K V)
100
50
0 1.0 1.5 2.0 2.5
100
50
0 1.5 2.0 2.5 2.5over
� BREAKDOWN VOLTAGE
Sample: UC2-5NU 10peices
(a) Between open contacts
(
b
)
Between ad
j
acent contacts
(C) Between coil and
� ALTERNATION OF VOLTAGE IN DENSE MOUNTING (Magnetic interference)
Distribution
Distribution
(
%
)
Di
s
tri
bu
ti
o
n
(%)
Breakdown voltage (K V)
Breakdown voltage (K V)
ON ON OFF OFF
ON
ON
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
e
f
Device under test
a b c d
a b c d e
f
+40
+30
+20
+10
0
-10
-20
-30
-40
Mountin
g
la
y
out
A
lternation of operate voltage
Ratio of
alternation (%)
+40
+30
+20
+10
0
-10
-20
-30
-40
Mounting layout
a b c d e
f
Ratio of
alternation (%)
A
lternation of operate voltage
2.5mm
3mm
12© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
APPEARANCE
1,200 pieces / Reel
Reel diameter: 380mm
TAPE DIMENSIONS
RELAY DIRECTION MARK AND TAPE CARRYING DIRECTION
Reel
Top cover tape
Emboss
Carrying tape
24.0
4
Φ1.5
Φ2.2
16
11.5
2.0 1.75
12.1
0.4
max. 8.1
14.7
24.0
4
Φ1.5
Φ2.2
12
11.5
2.0 1.75
B
0.4
A
11.4
Direction mark
Sprocket hole
Direction of unreeling
Direction mark
Sprocket hole
Direction of unreeling
APPEARANCE
1,200 pieces / Reel
Reel diameter: 380mm
TAPE DIMENSIONS
RELAY DIRECTION MARK AND TAPE CARRYING DIRECTION
Reel
Top cover tape
Emboss
Carrying tape
24.0
4
Φ1.5
Φ2.2
16
11.5
2.0 1.75
12.1
0.4
max. 8.1
14.7
24.0
4
Φ1.5
Φ2.2
12
11.5
2.0 1.75
B
0.4
A
11.4
Direction mark
Sprocket hole
Direction of unreeling
Direction mark
Sprocket hole
Direction of unreeling
APPEARANCE
1,200 pieces / Reel
Reel diameter: 380mm
TAPE DIMENSIONS
RELAY DIRECTION MARK AND TAPE CARRYING DIRECTION
Reel
Top cover tape
Emboss
Carrying tape
24.0
4
Φ1.5
Φ2.2
16
11.5
2.0 1.75
12.1
0.4
max. 8.1
14.7
24.0
4
Φ1.5
Φ2.2
12
11.5
2.0 1.75
B
0.4
A
11.4
Direction mark
Sprocket hole
Direction of unreeling
Direction mark
Sprocket hole
Direction of unreeling
Tube Packing – Millimeters
50 pieces / Tube (anti-static)
11.0
12.1
560
Direction of relay direction mark
Rubb
er stopper (Yellow)Rubber stopper (Green
)
Tape & Reel Packaging Information (UD2 only) – Millimeters
Appearance
Tape Dimensions
Relay Direction Mark and Tape Carrying Direction
Series
A
B
NU-L, NE-L
Maximum 6.2
9.2
NUN-L, NEN-L
Maximum 6.6
7.5
13© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Notes on Using Relays
1. Contact Load
Make sure that the contact load is within the specied range; otherwise, the lifetime of the contacts will be shortened considerably.
Note that the running performance shown is an example, and that it varies depending on parameters such as the type of load,
switching frequency, driver circuit, and ambient temperature under the actual operating conditions.
2. Driving Relays
• If the internal connection diagram of a relay shows + and - symbols on the coil, apply the rated voltage to the relay in the
specied direction. If a rippled DC current source is used, abnormalities such as heat at the coil may occur.
• The maximum voltage that can be applied to the coil of the relay varies depending on the ambient temperature. Generally, the
higher the voltage applied to the coil, the shorter the operating time. Note, however, that high voltage also increases the bounce
of the contacts and the contact opening and closing frequency, which may shorten the lifetime of the contacts.
• For consistent operation, the driving voltage should have rise and fall times of less than 1 ms.
• For a latching relay, apply a voltage to the coil according to the polarity specied in the internal connection diagram of the relay.
• If a current is applied to the coil over a long period of time, the coil temperature rises, promoting generation of organic gas inside
the relay, which may result in faulty contacts. In this case, use of a latching relay is recommended.
• The operating time and release time indicate the time required for each contact to close after the voltage has been applied to or
removed from the coil. However, because the relay has a mechanical structure, a bounce state exists at the end of the operating
and release times. Furthermore, because additional time is required until the contact stabilizes after being in a high-resistance
state, care must be taken when using the relay at high speeds.
3. Operating Environment
• Make sure that the relay mounted in the application set is used within the specied temperature range. Use of a relay at a
temperature outside this range may adversely affect insulation or contact performance.
• If the relay is used for a long period of time in highly humid (RH 85% or higher) environment, moisture may be absorbed into the
relay. This moisture may react with the NOx and SOx generated by glow discharges that occur when the contacts are opened or
closed, producing nitric or sulfuric acid. If this happens, the acid produced may corrode the metallic parts of the relay, causing
operational malfunction.
• If any material containing silicon (silicon rubber, silicon oil, and silicon based coating material) is used in the neighborhood of
relay, there is some possibility that these materials will emit silicon gas that will penetrate the relay. In this case, the switching
contact may generate silicon compounds on the surface of contacts. This silicon compound may result in contact failure. Avoid
use of relay in such an environment.
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0886EMDD03VOL01E
EA2/EBE2 SERIES
13
NOTE ON CORRECT USE
1. Notes on contact load
Make sure that the contact load is within the specified range;
otherwise, the lifetime of the contacts will be shortened
considerably.
Note that the running performance shown is an example,
and that it varies depending on parameters such as the
type of load, switching frequency, driver circuit, and
ambient temperature under the actual operating conditions.
Evaluate the performance by using the actual circuit before
using the relay.
2. Driving relays
- If the internal connection diagram of a relay shows + and -
symbols on the coil, apply the rated voltage to the relay in
the specified direction. If a rippled DC current source is
used, abnormalities such as beat at the coil may occur.
- The maximum voltage that can be applied to the coil of the
relay varies depending on the ambient temperature.
Generally, the higher the voltage applied to the coil, the
shorter the operating time. Note, however, that a high
voltage also increases the bounce of the contacts and
the contact opening and closing frequency, which may
shorten the lifetime of the contacts.
- If the driving voltage waveform of the relay coil rises and
falls gradually, the inherent performance of the relay may not
be fully realized. Make sure that the voltage waveform
instantaneously rises and falls as a pulse.
- For a latching relay, apply a voltage to the coil according to
the polarity specified in the internal connection diagram of
the relay.
- If a current is applied to the coil over a long period of time,
the coil temperature rises, promoting generation of organic
gas inside the relay, which may result in faulty contacts. In
this case, use of a latching relay is recommended.
- The operating time and release time indicate the time
required for each contact to close after the voltage has been
applied to or removed from the coil. However, because the
relay has a mechanical structure, a bounce state exists at
the end of the operating and release times. Furthermore,
because additional time is required until the contact
stabilizes after being in a high-resistance state, care must be
taken when using the relay at high speeds.
3. Operating environment
- Make sure that the relay mounted in the application set is
used within the specified temperature range. Use of a relay
at a temperature outside this range may adversely affect
insulation or contact performance.
- If the relay is used for a long period of time in highly humid
(RH 85% or higher) environment, moisture may be absorbed
into the relay. This moisture may react with the NOx and
SOx generated by glow discharges that occur when the
contacts are opened or closed, producing nitric or sulfuric
acid. If this happens, the acid produced may corrode the
metallic parts of the relay, causing operational malfunction.
- If any material containing silicon (silicon rubber, silicon oil,
and silicon based coating material) is used in the
neighborhood of relay, there is some possibility that these
materials will emit silicon gas that will penetrate the relay. In
this case, the switching contact may generate silicon
compounds on the surface of contacts. This silicon
compound may result in contact failure. Avoid use of relay in
such an environment.
- Because the operating temperature range varies
depending on the humidity, use the relay in the temperature
range illustrated in the figure below. Prevent the relay from
being frozen and avoid the generation of condensation.
- The relay maintains constant sealability under normal
atmospheric pressure (810 to 1,200 hpa). Its sealability may
be degraded or the relay may be deformed and malfunction
if it is used under barometric conditions exceeding the
specified range.
- The same applies when the relay is stored or transported.
Keep the upper-limit value of the temperature to which the
relay is exposed after it is removed from the carton box to
within 50°C.
- Permanent magnets are used in polarized relays. For this
reason, when magnets, transformers, or speakers are
located nearby the relay characteristics may change and
faulty operations may result.
- If excessive vibration or shock is applied to the relay, it may
malfunction and the contacts remain closed. Vibration or
shock applied to the relay during operation may cause
considerable damage to or wearing of the contacts. Note that
operation of a snap switch mounted close to the relay or
shock due to the operation of magnetic solenoid may also
cause malfunctioning.
Nominal
coil voltage
0
<1msec.
<1msec.
-60 -40 -20 0 20 40 60 80 100
80
Temperature (°C )
60
40
20
85
5
Humidit
y
(%RH)
14© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Notes on Using Relays cont’d
• Because the operating temperature range varies depending on the humidity, use the relay in the temperature range illustrated in
the gure below. Prevent the relay from being frozen and avoid the generation of condensation.
• The relay maintains constant sealability under normal atmospheric pressure (810 to 1,200 hpa). Its sealability may be degraded
or the relay may be deformed and malfunction if it is used under barometric conditions exceeding the specied range.
• The same applies when the relay is stored or transported. Keep the upper-limit value of the temperature to which the relay is
exposed after it is removed from the carton box to within 50°C.
• Permanent magnets are used in polarized relays. For this reason, when magnets, transformers, or speakers are located nearby
the relay characteristics may change and faulty operations may result.
• If excessive vibration or shock is applied to the relay, it may malfunction and the contacts remain closed. Vibration or shock
applied to the relay during operation may cause considerable damage to or wearing of the contacts. Note that operation of a
snap switch mounted close to the relay or shock due to the operation of magnetic solenoid may also cause malfunctioning.
4. Mounting
• When mounting a relay onto a PC board using an automatic chip mounter, if excessive force is applied to the cover of the relay
when the relay is chucked or inserted, the cover may be damaged or the characteristics of the relay degraded. Keep the force
applied to the relay to within 1 kg.
• Avoid bending the pins to temporarily secure the relay to the PC board. Bending the pins may degrade sealability or adversely
affect the internal mechanism.
• Ventilation immediately after soldering is recommended. Avoid immersing the relay in cleaning solvent immediately after
soldering due to the danger of thermal shock being applied to the relay.
• Use an alcohol-based or water-based cleaning solvent. Never use thinner and benzene because they may damage the relay
housing.
• Do not use ultrasonic cleaning because the vibration energy generated by the ultrasonic waves may cause the contacts to
remain closed.
5. Handling and Storage
• Relays are packaged in magazine cases for shipment. If a space is created in the case after some relays have been removed, be
sure to insert a stopper to secure the remaining relays in the case. If relays are not well secured, vibration during transportation
may cause malfunctioning of the contacts.
• Exercise care in handling the relay so as to avoid dropping it or allowing it to fall. Do not use a relay that has been dropped. If a
relay drops from a workbench to the oor, a shock of 9,800 m/s2 (1,000 G) or more is applied to the relay, possibly damaging its
functions. Even if a light shock has been applied to the relay, thoroughly evaluate its operation before using it.
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2007.08.03 P0886EMDD03VOL01E
EA2/EBE2 SERIES
13
NOTE ON CORRECT USE
1. Notes on contact load
Make sure that the contact load is within the specified range;
otherwise, the lifetime of the contacts will be shortened
considerably.
Note that the running performance shown is an example,
and that it varies depending on parameters such as the
type of load, switching frequency, driver circuit, and
ambient temperature under the actual operating conditions.
Evaluate the performance by using the actual circuit before
using the relay.
2. Driving relays
- If the internal connection diagram of a relay shows + and -
symbols on the coil, apply the rated voltage to the relay in
the specified direction. If a rippled DC current source is
used, abnormalities such as beat at the coil may occur.
- The maximum voltage that can be applied to the coil of the
relay varies depending on the ambient temperature.
Generally, the higher the voltage applied to the coil, the
shorter the operating time. Note, however, that a high
voltage also increases the bounce of the contacts and
the contact opening and closing frequency, which may
shorten the lifetime of the contacts.
- If the driving voltage waveform of the relay coil rises and
falls gradually, the inherent performance of the relay may not
be fully realized. Make sure that the voltage waveform
instantaneously rises and falls as a pulse.
- For a latching relay, apply a voltage to the coil according to
the polarity specified in the internal connection diagram of
the relay.
- If a current is applied to the coil over a long period of time,
the coil temperature rises, promoting generation of organic
gas inside the relay, which may result in faulty contacts. In
this case, use of a latching relay is recommended.
- The operating time and release time indicate the time
required for each contact to close after the voltage has been
applied to or removed from the coil. However, because the
relay has a mechanical structure, a bounce state exists at
the end of the operating and release times. Furthermore,
because additional time is required until the contact
stabilizes after being in a high-resistance state, care must be
taken when using the relay at high speeds.
3. Operating environment
- Make sure that the relay mounted in the application set is
used within the specified temperature range. Use of a relay
at a temperature outside this range may adversely affect
insulation or contact performance.
- If the relay is used for a long period of time in highly humid
(RH 85% or higher) environment, moisture may be absorbed
into the relay. This moisture may react with the NOx and
SOx generated by glow discharges that occur when the
contacts are opened or closed, producing nitric or sulfuric
acid. If this happens, the acid produced may corrode the
metallic parts of the relay, causing operational malfunction.
- If any material containing silicon (silicon rubber, silicon oil,
and silicon based coating material) is used in the
neighborhood of relay, there is some possibility that these
materials will emit silicon gas that will penetrate the relay. In
this case, the switching contact may generate silicon
compounds on the surface of contacts. This silicon
compound may result in contact failure. Avoid use of relay in
such an environment.
- Because the operating temperature range varies
depending on the humidity, use the relay in the temperature
range illustrated in the figure below. Prevent the relay from
being frozen and avoid the generation of condensation.
- The relay maintains constant sealability under normal
atmospheric pressure (810 to 1,200 hpa). Its sealability may
be degraded or the relay may be deformed and malfunction
if it is used under barometric conditions exceeding the
specified range.
- The same applies when the relay is stored or transported.
Keep the upper-limit value of the temperature to which the
relay is exposed after it is removed from the carton box to
within 50°C.
- Permanent magnets are used in polarized relays. For this
reason, when magnets, transformers, or speakers are
located nearby the relay characteristics may change and
faulty operations may result.
- If excessive vibration or shock is applied to the relay, it may
malfunction and the contacts remain closed. Vibration or
shock applied to the relay during operation may cause
considerable damage to or wearing of the contacts. Note that
operation of a snap switch mounted close to the relay or
shock due to the operation of magnetic solenoid may also
cause malfunctioning.
Nominal
coil voltage
0
<1msec. <1msec.
-60 -40 -20 0 20 40 60 80 100
80
Temperature (°C )
60
40
20
85
5
Humidit
y
(%RH)
15© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Notes on Using Relays cont’d
• Latching relays are factory-set to reset state for shipment. A latching relay may be set, however, by vibration or shock applied
while being transported. Be sure to forcibly reset the relay before using it in the application set. Also note that the relay may be
set by unexpected vibration or shock when it is used in a portable set.
• The sealability of a surface mount (SMT) relay may be lost if the relay absorbs and is then heated during soldering. When storing
relays, therefore, observe the following points:
1. For standard packing, please use relays within 12 months after delivery (storage conditions: 30°C / 60% RH). If the relays
have moisture absorption, dehumidify as follows:
– Tape Packaging: 50 ±5°C, 200–300 hours.
– Simple Relay: 85 ±5°C, 48 hours.
2. For MBB packing, please use relays within 2 years after delivery (storage conditions: 30°C / 60% RH). After opening MBB
packing, please use within 3 months (storage conditions: 30°C / 60% RH).
16© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
KEMET Corporation
World Headquarters
2835 KEMET Way
Simpsonville, SC 29681
Mailing Address:
P.O. Box 5928
Greenville, SC 29606
www.kemet.com
Tel: 864-963-6300
Fax: 864-963-6521
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Tel: 39-051-939111
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Note: KEMET reserves the right to modify minor details of internal and external construction at any time in the interest of product improvement. KEMET does not
assume any responsibility for infringement that might result from the use of KEMET Capacitors in potential circuit designs. KEMET is a registered trademark of
KEMET Electronics Corporation.
17© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 (864) 963-6300 • www.kemet.com R7005_UC2_UD2 • 8/29/2013
Miniature Signal Relays – UC2/UD2 Series
Disclaimer
This product has been made available through a Private Label Agreement and a Development and Cross-Licensing Agreement between KEMET and NEC TOKIN to expand market
and product offerings for both companies and their respective customers. For more information, please visit http://www.kemet.com/nectokin.
All product speci cations, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for checking and
verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed.
All Information given herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements of suitability for certain applications are based on KEMET Electronics Corporation’s (“KEMET”) knowledge of typical operating conditions for such applications, but are
not intended to constitute – and KEMET speci cally disclaims – any warranty concerning suitability for a speci c customer application or use. The Information is intended for use only
by customers who have the requisite experience and capability to determine the correct products for their application. Any technical advice inferred from this Information or otherwise
provided by KEMET with reference to the use of KEMET’s products is given gratis, and KEMET assumes no obligation or liability for the advice given or results obtained.
Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component failures may still
occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards (such as installation of protective
circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or property damage.
Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicted or that other measures may not
be required.
Digitally signed by Marcy Brand
DN: c=US, st=FL, l=Fort Lauderdale, o=KEMET Corporation, ou=Marketing Communications, cn=Marcy Brand, email=marcybrand@kemet.com
Date: 2013.08.30 10:13:58 -04'00'