1© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
One world. One KEMET
Benets
• Low power consumption (< 200 mW)
• Compact and lightweight
• Low magnetic interference
• Breakdown voltage: 1,000 VAC (1,500 VAC surge),
FCC Part 68 compliant
• Tube or embossed tape and reel packaging
• ULrecognized(E73266)andCSAcertied(LR46266)
• Surface mount and through-hole options
Overview
The KEMET EA2/EB2 miniature signal relays offer a
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
EA2/EB2 Series
Part Number System
EB2- 3 S NU -L
Series Coil Voltage Latch Type Lead Type Packaging
EA2- = Through-hole mount
EB2- = Surface mount
3 = 3 VDC
4.5 = 4.5 VDC
5 = 5 VDC
12 = 12 VDC
24 = 24 VDC
Blank = Non-latch type
S = Single coil latch type
T = Double coil latch type
NU = Standard Blank = Tube
-L = Embossed tape on reel
2© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
Dimensions – Millimeters
EA2 Series
D Maximum B Maximum
0.33 0.25
0.5
H Maximum
P1P2
K
General tolerance: ±0.2
EB2 Series
B MaximumD Maximum
H Maximum
K
P
1
P
2
11.5
0.25
0.5
General tolerance: ±0.2
Series D H B P1P2K
EA2 (NU)
14.2
5.4
9.2
2.54
7.62
3.5
EB2
14.3
7.5
9.3
2.54
7.62
1.35
3© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
Pin Congurations
Bottom view
Safety Standards and Ratings
Certication Body Mark Specication File Number Rating
UL UL Recognized
(UL508)1E73266 30 VDC, 1 A (resistive)
110 VDC, 0.3 A (resistive)
125 VAC, 0.5 A (resistive)
CSA CSACertied
(CSA 22.2 #14) LR46266
1 Spacing: UL114, UL478
Environmental Compliance
All KEMET relays are RoHS Compliant.
RoHS Compliant
1 2 3 4 5
10 9 8 7 6
Direction mark
Single coil latch type
(Reset position)
S: Coil polarity for Set
R: Coil polarity for Reset
-
R
+
+
S
-
-
R
+
+
S
-
1 2 3 4 5
－
＋
－
＋
Set coil
Reset coil
Double coil latch type
(Reset position)
10 9 8 7 6
－
＋
－
＋
Direction mark
+
-
Non-latch type
(Non-energized position)
+
-
1 2 3 4 5
10 9 8 7 6
Direction mark
4© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
Table 1 – Ratings & Part Number Reference
Part Number Nominal Coil Voltage (VDC) Lead Type Packaging
EA2-3(1)NU
3
Radial
Tube
EA2-4.5(1)NU
4.5
Radial
Tube
EA2-5(1)NU
5
Radial
Tube
EA2-12(1)NU
12
Radial
Tube
EA2-24(1)NU
24
Radial
Tube
EB2-3(1)NU
3
Surface Mount
Tube
EB2-4.5(1)NU
4.5
Surface Mount
Tube
EB2-5(1)NU
5
Surface Mount
Tube
EB2-12(1)NU
12
Surface Mount
Tube
EB2-24(1)NU
24
Surface Mount
Tube
EB2-3(1)NU-L
3
Surface Mount
Tape on Reel
EB2-4.5(1)NU-L
4.5
Surface Mount
Tape on Reel
EB2-5(1)NU-L
5
Surface Mount
Tape on Reel
EB2-12(1)NU-L
12
Surface Mount
Tape on Reel
EB2-24(1)NU-L
24
Surface Mount
Tape on Reel
(1) To complete KEMET part number, leave blank for Non-latch, insert S for Single coil, or T for Double coil. Designates latch type.
5© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
Land Pattern – Millimeters
EA2 (bottom view)
2.54
2.54
10.16
7.62
10 – ø 0.8
General tolerance: ±0.1
EB2 (bottom view)
2.94
2.54
10.16
9.56
1.0
General tolerance: ±0.1
Soldering Process
EA2 – 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
EB2 – 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)
6© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 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 This shows the number of operations with fatal defects. Stable characteristics are maintained for 1 x 107 operations.
Coil Specications
Non-latch Type (at 20°C)
Nominal Coil Voltage
(VDC)
Coil Resistance
(Ω) ±10%
Operating Voltage1
(VDC)
Release Voltage1
(VDC)
Nominal Operating
Power (mW)
364.3 2.25 0.3 140
4.5 145 3.38 0.45 140
5178 3.75 0.5 140
12 1028 9.0 1.2 140
24 2880 18.0 2.4 200
1 Test by pulse voltage.
Item EA2/EB2
Contact Form 2 Form C
Contact Material Silver alloy with gold alloy overlay
Contact Ratings
Maximum Switching Power 30 W, 62.5 VA
Maximum Switching Voltage 220 VDC, 250 VAC
Maximum Switching Current 1 A
Maximum Carrying Current 2 A
Minimum Contact Ratings 10 mVDC, 10 µA*1
Initial Contact Resistance 75mΩmaximum(initial)
Operating Time (excluding bounce) Approximately 2 milliseconds
Release Time (excluding bounce) Approximately 1 millisecond
Insulation Resistance 1,000MΩat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 1,000 VAC (for one minute), 1,500 V surge (10 x 160 µs)*2
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
Coil Temperature Rise 18°C at nominal coil voltage (140 mW)
RunningSpecications
Non-load 1 x 108 operations (Non-latch type)*3
1 x 107 operations (Latch type)
Load 50 VDC 0.1 A (resistive), 1 x 106 operations at 85°C, 5 Hz
10 VDC 10 mA (resistive), 1 x 106 operations at 85°C, 2 Hz
Weight Approximately 1.5 g
7© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
Coil Specications cont’d
Single Coil Latch Type (at 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
12 1440 9.0 9.0 100
24 3840 18.0 18.0 150
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.
Double Coil Latch Type (at 20°C)2,3
Nominal Coil Voltage
(VDC)
Coil Resistance
(Ω) ±10%
Set Voltage4
(VDC)
Release Voltage4
(VDC)
Nominal Operating
Power (mW)
3S64.3 2.25 –140
R64.3 –2.25
4.5 S145 3.38 –140
R145 –3.38
5S178 3.75 –140
R178 –3.75
12 S1028 9.0 –140
R1028 –9.0
24 S2880 18.0 –200
R2880 –18.0
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.
3 Can not be driven by reverse polarity for reverse operation.
4 S = Set coil [pin #1 (+), pin #5 (−)], R = Reset coil [pin #10 (+), pin #6 (−)].
8© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
Recommended Relay Drive Conditions
Coil Type Rating Ambient Temperature
Non-latch Voltage:≤±5%ofnominalvoltage
−40to+85°C
Single Coil
Double Coil
Square pulse (rise and fall time is rapid)
Pulseheight:≤±5%ofnominalvoltage
Pulse Width: > 10 ms
Marking
Top view
EA2-5NU
JAPAN
1D1727F
Part number
Country of origin
Date code
Direction mark
(pin No. 1 and 10)
UL, CSA marking
Company logo
9© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 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: EA2-5NU)
App
p
(
)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
p
y
A
pplied power 0.1W
A
pplied power 0.14W
A
pplied power 0.2W
Coil temperature
rise (°C)
A
p
(
)
g
(
)
f
A
A
(
)
●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/EB2 SERIES
8
PERFORMANCE DATA
0 100 200 300
60
40
20
0
App
lied
p
ower
(
mW
)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
A
pplied power 0.1W
A
pplied power 0.14W
A
pplied power 0.2W
Coil temperature
rise (°C )
Coil temperature
rise (°C)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient tem
p
erature
(
° C
)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
� SWITCHING CAPACITY
These are maximum values.
Inquire with NEC TOKIN for maximum values under continuous use.
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
DC(Resistive)
AC(Resistive)
250VAC
220VDC
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
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
� APPLIED VOLTAGE VS. TIMING (Sample: EA2-5NU)
(
Without coil diode
)
Operate
time
(ms)
Release
time
(ms)
●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/EB2 SERIES
8
PERFORMANCE DATA
0 100 200 300
60
40
20
0
App
lied
p
ower
(
mW
)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
A
pplied power 0.1W
A
pplied power 0.14W
A
pplied power 0.2W
Coil temperature
rise (°C )
Coil temperature
rise (°C)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient tem
p
erature
(
° C
)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
� SWITCHING CAPACITY
These are maximum values.
Inquire with NEC TOKIN for maximum values under continuous use.
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
DC(Resistive)
AC(Resistive)
250VAC
220VDC
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
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
� APPLIED VOLTAGE VS. TIMING (Sample: EA2-5NU)
(
Without coil diode
)
Operate
time
(ms)
Release
time
(ms)
●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/EB2 SERIES
8
PERFORMANCE DATA
0 100 200 300
60
40
20
0
App
lied
p
ower
(
mW
)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
A
pplied power 0.1W
A
pplied power 0.14W
A
pplied power 0.2W
Coil temperature
rise (°C )
Coil temperature
rise (°C)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient tem
p
erature
(
° C
)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
� SWITCHING CAPACITY
These are maximum values.
Inquire with NEC TOKIN for maximum values under continuous use.
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
DC(Resistive)
AC(Resistive)
250VAC
220VDC
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
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
� APPLIED VOLTAGE VS. TIMING (Sample: EA2-5NU)
(
Without coil diode
)
Operate
time
(ms)
Release
time
(ms)
●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/EB2 SERIES
8
PERFORMANCE DATA
0 100 200 300
60
40
20
0
App
lied
p
ower
(
mW
)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
A
pplied power 0.1W
A
pplied power 0.14W
A
pplied power 0.2W
Coil temperature
rise (°C )
Coil temperature
rise (°C)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient tem
p
erature
(
° C
)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
� SWITCHING CAPACITY
These are maximum values.
Inquire with NEC TOKIN for maximum values under continuous use.
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
DC(Resistive)
AC(Resistive)
250VAC
220VDC
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
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
� APPLIED VOLTAGE VS. TIMING (Sample: EA2-5NU)
(
Without coil diode
)
Operate
time
(ms)
Release
time
(ms)
●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/EB2 SERIES
8
PERFORMANCE DATA
0 100 200 300
60
40
20
0
App
lied
p
ower
(
mW
)
0 5 10 15 20
30
20
10
0
A
pplied time (minute)
� COIL TEMPERATURE RISE
Tem
p
erature is measured b
y
coil resistance
A
pplied power 0.1W
A
pplied power 0.14W
A
pplied power 0.2W
Coil temperature
rise (°C )
Coil temperature
rise (°C)
-40 -20 0 20 40 60 80 100
200
150
100
50
A
mbient tem
p
erature
(
° C
)
10 20 50 100
2.0
1.0
0.5
0.2
0.1
Contact volta
g
e
(
V
)
� SWITCHING CAPACITY
These are maximum values.
Inquire with NEC TOKIN for maximum values under continuous use.
� MAXIMUM COIL VOLTAGE
This is a maximum value of permissible alteration.
Inquire with NEC TOKIN under continuous use.
DC(Resistive)
AC(Resistive)
250VAC
220VDC
Contact
current (A)
Ratio o
f
nominal
coil
voltage
(%)
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
� APPLIED VOLTAGE VS. TIMING (Sample: EA2-5NU)
(
Without coil diode
)
Operate
time
(ms)
Release
time
(ms)
10© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 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:EA2–5NU,20pieces)
Running Test (Load)
(Load:50VDC,0.1Aresistive;Drive:5VDC,5Hz,50%duty;AmbientTemperature:85°C;Sample:EA2–5NU,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 P0886EMDD03VOL01E
EA2/EBE2 SERIES
9
Release volta
g
e
(
t
yp
ical
)
� 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.
-40 -20 0 20 40 60 80 100
100
80
60
40
20
0
A
mbient temperature (°C)
Must operate voltage
Operate voltage (typical)
Ratio of nominal
coil voltage (%)
5
4
3
2
1
0
0 20 50 100 500 1000
� RUNNING TEST (Non-load)
(Load: none, Drive:5VDC，50Hz，50%duty, Ambient temperature :room temperature, Sample:EA2-5NU ,20pieces)
Operate voltage
R
e
l
ease
v
o
l
tage
0 20 50 100 500 1000
10000
1000
100
10
Contact
resistance
(mΩ)
Operate
voltage
(V)
Release
voltage
(V)
Operations (×104)Operations (×104)
10000
1000
100
10
5
4
3
2
1
0
0 2 5 10 50 100
� RUNNING TEST(Load)
(Load: 50VDC 0.1A resistive, Drive: 5VDC,5Hz,50%duty,Ambient temperature:85 °C, Sample:EA2-5NU ,10pieces)
Contact
resistance
(mΩ)
Operate
voltage
(V)
Release
0 2 5 10 50 100
Operations (×104)
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 P0886EMDD03VOL01E
EA2/EBE2 SERIES
9
Release volta
g
e
(
t
yp
ical
)
� 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.
-40 -20 0 20 40 60 80 100
100
80
60
40
20
0
A
mbient temperature (°C)
Must operate voltage
Operate voltage (typical)
Ratio of nominal
coil voltage (%)
5
4
3
2
1
0
0 20 50 100 500 1000
� RUNNING TEST (Non-load)
(Load: none, Drive:5VDC，50Hz，50%duty, Ambient temperature :room temperature, Sample:EA2-5NU ,20pieces)
Operate voltage
R
e
l
ease
v
o
l
tage
0 20 50 100 500 1000
10000
1000
100
10
Contact
resistance
(mΩ)
Operate
voltage
(V)
Release
voltage
(V)
Operations (×104)
Operations (
×
10
4
)
10000
1000
100
10
5
4
3
2
1
0
0 2 5 10 50 100
� RUNNING TEST(Load)
(Load: 50VDC 0.1A resistive, Drive: 5VDC,5Hz,50%duty,Ambient temperature:85 °C, Sample:EA2-5NU ,10pieces)
Contact
resistance
(mΩ)
Operate
voltage
(V)
Release
0 2 5 10 50 100
Operations (×104)
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 P0886EMDD03VOL01E
EA2/EBE2 SERIES
9
Release volta
g
e
(
t
yp
ical
)
� 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.
-40 -20 0 20 40 60 80 100
100
80
60
40
20
0
A
mbient temperature (°C)
Must operate voltage
Operate voltage (typical)
Ratio of nominal
coil voltage (%)
5
4
3
2
1
0
0 20 50 100 500 1000
� RUNNING TEST (Non-load)
(Load: none, Drive:5VDC，50Hz，50%duty, Ambient temperature :room temperature, Sample:EA2-5NU ,20pieces)
Operate voltage
R
e
l
ease
v
o
l
tage
0 20 50 100 500 1000
10000
1000
100
10
Contact
resistance
(mΩ)
Operate
voltage
(V)
Release
voltage
(V)
Operations (×104)Operations (×104)
10000
1000
100
10
5
4
3
2
1
0
0 2 5 10 50 100
� RUNNING TEST(Load)
(Load: 50VDC 0.1A resistive, Drive: 5VDC,5Hz,50%duty,Ambient temperature:85 °C, Sample:EA2-5NU ,10pieces)
Contact
resistance
(mΩ)
Operate
voltage
(V)
Release
0 2 5 10 50 100
Operations (×104)
Operations (×104)
Operate voltage
Release voltage
11© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
Performance Data cont’d
Breakdown Voltage
(Sample: EA2–5NU, 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 P0886EMDD03VOL01E
EA2/EB2 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 0.5 1.5 2.0 2.5
� BREAKDOWN VOLTAGE
Sample: EA2-5NU 10peices
(a) Between open contacts
(
b
)
Between ad
j
acent contacts
(C) Between coil and
� ALTERNATION OF VOLTAGE IN DENSE MOUNTING (magnet interference)
Distribution
Distribution
(
%
)
Di
s
tri
bu
ti
o
n
(%)
Breakdown voltage (K V)
Breakdown voltage (K V)
Device under test
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
ON
ON
ON
OFF
OFF
OFF
e
f
ON ON OFF OFF
ON
ON
OFF
OFF
a b c d
2.54mm
2.54mm
2.54mm
●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/EB2 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 0.5 1.5 2.0 2.5
� BREAKDOWN VOLTAGE
Sample: EA2-5NU 10peices
(a) Between open contacts
(
b
)
Between ad
j
acent contacts
(C) Between coil and
� ALTERNATION OF VOLTAGE IN DENSE MOUNTING (magnet interference)
Distribution
Distribution
(
%
)
Di
s
tri
bu
ti
o
n
(%)
Breakdown voltage (K V)
Breakdown voltage (K V)
Device under test
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
ON
ON
ON
OFF
OFF
OFF
e
f
ON ON OFF OFF
ON
ON
OFF
OFF
a b c d
2.54mm
2.54mm
2.54mm
●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/EB2 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 0.5 1.5 2.0 2.5
� BREAKDOWN VOLTAGE
Sample: EA2-5NU 10peices
(a) Between open contacts
(
b
)
Between ad
j
acent contacts
(C) Between coil and
� ALTERNATION OF VOLTAGE IN DENSE MOUNTING (magnet interference)
Distribution
Distribution
(
%
)
Di
s
tri
bu
ti
o
n
(%)
Breakdown voltage (K V)
Breakdown voltage (K V)
Device under test
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
ON
ON
ON
OFF
OFF
OFF
e
f
ON ON OFF OFF
ON
ON
OFF
OFF
a b c d
2.54mm
2.54mm
2.54mm
12© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
APPEARANCE
750 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
16
11.5
2.0 1.75
12.1
0.4
Maximum 8.1
14.7
Direction mark
Sprocket hole
Direction of unreeling
Direction mark
Sprocket hole
Direction of unreeling
APPEARANCE
750 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
16
11.5
2.0 1.75
12.1
0.4
Maximum 8.1
14.7
Direction mark
Sprocket hole
Direction of unreeling
Direction mark
Sprocket hole
Direction of unreeling
APPEARANCE
750 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
16
11.5
2.0 1.75
12.1
0.4
Maximum 8.1
14.7
Direction mark
Sprocket hole
Direction of unreeling
Direction mark
Sprocket hole
Direction of unreeling
Tube Packing – Millimeters
40 pieces/Tube (anti-static)
13.7
12.0
586
Direction of relay direction mark
Rubber stopper (Red) Rubber stopper (Green)
Tape & Reel Packaging Information (EB2 only) – Millimeters
Appearance
Tape Dimensions
Relay Direction Mark and Tape Carrying Direction
13© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 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 R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 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.
●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 R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
Notes on Using Relays cont’d
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.
• 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 R7001_EA2_EB2 • 8/8/2017
Miniature Signal Relays – EA2/EB2 Series
KEMET Electronics Corporation Sales Of ces
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