Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
TX
ASCTB18E 201209-T
ORDERING INFORMATION
Best seller with broad
lineup and AC 2000 V
breakdown voltage. TX RELAYS
FEATURES
1. 2,000 V breakdown voltage between
contact and coil
The body block construction of the coil
that is sealed at formation offers a high
breakdown voltage of 2,000 V between
contact and coil, and 1,000 V between
open contacts.
RoHS compliant
2. Outstanding surge resistance.
Surge breakdown voltage between
open contacts:
1,500 V 10×160µ sec. (FCC part 68)
Surge breakdown voltage between
contact and coil:
2,500 V 2×10µ sec. (Bellcore)
3. Nominal operating power: High
sensitivity of 140mW
By using the highly efficient polar
magnetic circuit “seesaw balance
mechanism”, a nominal operating
power of 140 mW (minimum operating
power of 79 mW) has been achieved.
4. High contact capacity: 2 A 30 V DC
5. Compact size
15.0(L) × 7.4(W) × 8.2(H) .591(L) ×
.291(W) × .323(H)
6. The use of gold-clad twin crossbar
contacts ensures high contact
reliability.
*We also offer a range of products
with AgPd contacts suitable for use
in low level load analog circuits
(Max. 10V DC 10 mA).
7. Outstanding vibration and shock
resistance.
Functional shock resistance: 750 m/s2
Destructive shock resistance:
1,000 m/s2
Functional vibration resistance:
10 to 55 Hz (at double amplitude of
3.3 mm .130 inch)
Destructive vibration resistance:
10 to 55 Hz (at double amplitude of
5 mm .197 inch)
8. Sealed construction allows
automatic washing.
TYPICAL APPLICATIONS
1. Communications (xDSL,
Transmission)
2. Measurement
3. Security
4. Home appliances, and audio/visual
equipment
5. Medical equipment
Nominal coil voltage (DC)*
3, 4.5, 5, 6, 9, 12, 24V
Contact arrangement
2: 2 Form C
TX 2
Terminal shape
Nil: Standard PC board terminal or surface-mount terminal
Contact material
Nil:
1:
Standard contact (Ag+Au clad)
AgPd contact (low level load); AgPd+Au clad (stationary), AgPd (movable)
Operating function
Nil:
LT:
Single side stable
2 coil latching
Surface-mount availability
Nil:
SA:
Standard PC board terminal type
SA type
Packing style
Nil:
X:
Z:
Tube packing
Tape and reel (picked from 1/3/4/5-pin side)
Tape and reel packing (picked from the 8/9/10/12-pin side)
Note: In case of 5 V transistor drive circuit, it is recommended to use 4.5 V type relay.
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
TX
ASCTB18E 201209-T
TYPES
1. Standard PC board terminal
Standard packing: Tube: 40 pcs.; Case: 1,000 pcs.
Note: Please add “-1” to the end of the part number for AgPd contacts (low level load).
2. Surface-mount terminal
1) Tube packing
Standard packing: Tube: 40 pcs.; Case: 1,000 pcs.
Note: Please add “-1” to the end of the part number for AgPd contacts (low level load).
2) Tape and reel packing
Standard packing: Tape and reel: 500 pcs.; Case: 1,000 pcs.
Notes: 1. Tape and reel packing symbol “-Z” is not marked on the relay. “X” type tape and reel packing (picked from 1/2/3/4-pin side) is also available.
2. Please add “-1” to the end of the part number for AgPd contacts (low level load).
RATING
1. Coil data
1) Single side stable
2) 2 coil latching
*Pulse drive (JIS C 5442-1986)
Contact
arrangement
Nominal coil
voltage
Single side stable 2 coil latching
Part No. Part No.
2 Form C
3V DC TX2-3V TX2-LT-3V
4.5V DC TX2-4.5V TX2-LT-4.5V
5V DC TX2-5V TX2-LT-5V
6V DC TX2-6V TX2-LT-6V
9V DC TX2-9V TX2-LT-9V
12V DC TX2-12V TX2-LT-12V
24V DC TX2-24V TX2-LT-24V
Contact
arrangement
Nominal coil
voltage
Single side stable 2 coil latching
Part No. Part No.
2c
3V DC TX2SA-3V TX2SA-LT-3V
4.5V DC TX2SA-4.5V TX2SA-LT-4.5V
5V DC TX2SA-5V TX2SA-LT-5V
6V DC TX2SA-6V TX2SA-LT-6V
9V DC TX2SA-9V TX2SA-LT-9V
12V DC TX2SA-12V TX2SA-LT-12V
24V DC TX2SA-24V TX2SA-LT-24V
Contact
arrangement
Nominal coil
voltage
Single side stable 2 coil latching
Part No. Part No.
2 Form C
3V DC TX2SA-3V-Z TX2SA-LT-3V-Z
4.5V DC TX2SA-4.5V-Z TX2SA-LT-4.5V-Z
5V DC TX2SA-5V-Z TX2SA-LT-5V-Z
6V DC TX2SA-6V-Z TX2SA-LT-6V-Z
9V DC TX2SA-9V-Z TX2SA-LT-9V-Z
12V DC TX2SA-12V-Z TX2SA-LT-12V-Z
24V DC TX2SA-24V-Z TX2SA-LT-24V-Z
Nominal coil
voltage
Pick-up voltage
(at 20°C 68°F)
Drop-out voltage
(at 20°C 68°F)
Nominal operating
current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)
Nominal operating
power
Max. applied voltage
(at 20°C 68°F)
3V DC
75%V or less of
nominal voltage*
(Initial)
10%V or more of
nominal voltage*
(Initial)
46.7mA 64.3Ω
140mW 150%V of
nominal voltage
4.5V DC 31mA 145Ω
5V DC 28.1mA 178Ω
6V DC 23.3mA 257Ω
9V DC 15.5mA 579Ω
12V DC 11.7mA 1,028Ω
24V DC 5.8mA 4,114Ω
Nominal coil
voltage
Set voltage
(at 20°C 68°F)
Reset voltage
(at 20°C 68°F)
Nominal operating
current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)
Nominal operating
power Max. applied voltage
(at 20°C 68°F
Set coil Reset coil Set coil Reset coil Set coil Reset coil
3V DC
75%V or less of
nominal voltage*
(Initial)
75%V or less of
nominal voltage*
(Initial)
66.7mA 66.7mA 45Ω45Ω
200mW 200mW 150%V of
nominal voltage
4.5V DC 44.5mA 44.5mA 101.2Ω101.2Ω
5V DC 40mA 40mA 125Ω125Ω
6V DC 33.3mA 33.3mA 180Ω180Ω
9V DC 22.2mA 22.2mA 405Ω405Ω
12V DC 16.7mA 16.7mA 720Ω720Ω
24V DC 8.3mA 8.3mA 2,880Ω2,880Ω
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
TX
ASCTB18E 201209-T
2. Specifications
Notes: *1 This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the
actual load. (AgPd contact type is available for low level load switching [10V DC, 10mA max. level])
*2 Refer to 6. Conditions for operation, transport and storage mentioned in AMBIENT ENVIRONMENT (Page 24).
REFERENCE DATA
Characteristics Item Specifications
Contact
Arrangement 2 Form C
Initial contact resistance, max. Max. 100 mΩ (By voltage drop 6 V DC 1A)
Contact material Standard contact: Ag+Au clad,
AgPd contact (low level load): AgPd+Au clad (stationary), AgPd (movable)
Rating
Nominal switching capacity Standard contact: 2 A 30 V DC, AgPd contact: 1 A 30 V DC (resistive load)
Max. switching power Standard contact: 60 W (DC), AgPd contact: 30 W (DC) (resistive load)
Max. switching voltage 220V DC
Max. switching current Standard contact: 2 A, AgPd contact: 1 A
Min. switching capacity (Reference value)*110µA 10mV DC
Nominal operating
power
Single side stable 140 mW (3 to 24 V DC)
2 coil latching 200 mW (3 to 24 V DC)
Electrical
characteristics
Insulation resistance (Initial) Min. 1,000MΩ (at 500V DC) Measurement at same location as “Initial breakdown voltage” section.
Breakdown voltage
(Initial)
Between open contacts 1,000 Vrms for 1min. (Detection current: 10mA)
Between contact and coil 2,000 Vrms for 1min. (Detection current: 10mA)
Between contact sets 1,000 Vrms for 1min. (Detection current: 10mA)
Surge breakdown
voltage (Initial)
Between open contacts 1,500 V (10×160µs) (FCC Part 68)
Between contacts and coil 2,500 V (2×10µs) (Telcordia)
Temperature rise (at 20°C 68°F)Max. 50°C
(By resistive method, nominal coil voltage applied to the coil; contact carrying current: 2A.)
Operate time [Set time] (at 20°C 68°F) Max. 4 ms [Max. 4 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.)
Release time [Reset time] (at 20°C 68°F)Max. 4 ms [Max. 4 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.)
(without diode)
Mechanical
characteristics
Shock resistance Functional Min. 750 m/s2 (Half-wave pulse of sine wave: 6 ms; detection time: 10µs.)
Destructive Min. 1,000 m/s2 (Half-wave pulse of sine wave: 6 ms.)
Vibration resistance Functional 10 to 55 Hz at double amplitude of 3.3 mm (Detection time: 10µs.)
Destructive 10 to 55 Hz at double amplitude of 5 mm
Expected life Mechanical Min. 108 (at 180 cpm)
Electrical Min. 105 (2 A 30 V DC resistive), 5×105 (1 A 30 V DC resistive) (at 20 cpm)
Conditions Conditions for operation, transport and storage*2
Ambient temperature: –40°C to +85°C (up to 24 V coil) –40°F to +185°F (up to 24 V coil)
[–40°C to +70°C (48 V coil) –40°F to +158°F (48 V coil)];
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Max. operating speed (at rated load) 20 cpm
Unit weight Approx. 2 g .071 oz
1. Maximum switching capacity 2. Life curve 3. Mechanical life
Tested sample: TX2-5V, 10 pcs.
Operating speed: 180 cpm
0.2
0.3
0.4
0.5
1.0
2.0
3.0
20 30 50 100 200 300
DC resistive load
0
Contact voltage, V
Switching current, A
1.0 2.0
100
50
30
20
10
0
Switching current, A
No. of operations ×104
30V DC
resistive load
0
10
100 10,0001,00010
Max.
Max.
Min.
Min.
20
30
40
50
60
70
80
90
100
No. of operations, ×104
Ratio against the rated voltage, %V
Pick-up voltage
Drop-out voltage
4. Electrical life (2A 30V DC resistive load)
Tested sample: TX2-5V, 6 pcs.
Operating speed: 20 cpm
Change of pick-up and drop-out voltage Change of contact resistance
5. Coil temperature rise
Tested sample: TX2-5V, 6 pcs.
Point measured: Inside the coil
Ambient temperature: 25°C 77°F, 85°C 185°F
101
Max.
Min.
Min.
0
10
20
30
40
50
60
70
80
90
100
23456789
Max.
No. of operations, ×104
Ratio against the rated voltage, %V
Pick-up voltage
Drop-out voltage
101
Max.
Min.
0
10
20
30
40
50
60
70
80
90
100
23456789
No. of operations, ×104
Contact resistance, mΩ
10
30
60
70
100 120 150
0
20
40
50
110 130 140
2A
2A
0A
0A
+25°C
+85°C
Coil applied voltage, %
Temperature rise, °C
+77°F
+185°F
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
TX
ASCTB18E 201209-T
6-(1). Operate and release time (with diode)
Tested sample: TX2-5V, 10 pcs.
6-(2). Operate and release time (without diode)
Tested sample: TX2-5V, 10 pcs.
7. Ambient temperature characteristics
Tested sample: TX2-5V, 5 pcs.
1
2
4
5
70 80 100 120
0
3
90 110
Max.
Max.
Min.
Min.
Coil applied voltage, %V
Operate and release time, ms
Operate time
Release time
1
2
4
5
70 80 100 120
0
3
90 110
Max.
Max.
Min.
Min.
Coil applied voltage, %V
Operate and release time, ms
Operate time
Release time
–40
40
20
–20
–40 –20 02040 60 80
x
x
Ambient temperature, °C
Rate of change, %
Drop-out
voltage
Pick-up voltage
8-(1). High frequency characteristics
(Isolation)
Tested sample: TX2-12V, 2 pcs.
8-(2). High frequency characteristics
(Insertion loss)
Tested sample: TX2-12V, 2 pcs.
9. Malfunctional shock (single side stable)
Tested sample: TX2-5V, 6 pcs.
50
10 100 1,000
100
Frequency, MHz
Isolation, dB
0.6
10 100 1,000
0.2
0.4
1.0
0.8
Frequency, MHz
Insertion loss, dB
Y'
Y
XZ
Z' X'
Y
Y'
Z' ZXX'
1000m/s2
1000m/s2
1000m/s2
1000m/s2
1000m/s2
1000m/s2
Deenergized condition
Energized condition
10-(1). Influence of adjacent mounting
Tested sample: TX2-12V, 6 pcs.
10-(2). Influence of adjacent mounting
Tested sample: TX2-12V, 6 pcs.
–5
0
5
–5
0
5ON ON
OFF OFF
10624 80
OFF
ON
Pick-up voltage
Drop-out voltage
Inter-relay distance , mm
Rate of change, % Rate of change, %
.394.236.079 .157 .315
inch
–5
0
5
–5
0
5ON
ON
ON
OFF
OFF
OFF
10624 80
Pick-up voltage
Drop-out voltage
Inter-relay distance , mm
Rate of change, % Rate of change, %
.394.236.079 .157 .315
inch
11. Pulse dialing test
Tested sample: TX2-5V, 6 pcs.
(35 mA 48 V DC wire spring relay load)
Circuit
Change of pick-up and drop-out voltage Change of contact resistance
48V DC
458 Ω
0.08
µF0.08
µF
458 Ω
4
3TX
+
–
Wire spring relay
0
10
20 503010
Max.
Max.
Min.
Min.
20
30
40
50
60
70
80
90
100
40
No. of operation, ×104
Ratio against the rated voltage, %V
Pick-up voltage
Drop-out voltage
50
Max.
Min.
0
10
20
30
40
50
60
70
80
90
100
10 20 30 40
No. of operations, ×104
Contact resistance, mΩ
Note: Data of surface-mount type are the same as those of PC board terminal type.
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
TX
ASCTB18E 201209-T
DIMENSIONS (mm inch)
1. Standard PC board terminal and Self clinching terminal
2. Surface-mount terminal
Schematic (Top view)
Type External dimensions (General tolerance: ±0.3 ±.012)Suggested mounting pad (Top view) (Tolerance: ±0.1 ±.004)
Single side stable type 2 coil latching type Single side stable type 2 coil latching type
SA type
The CAD data of the products with a CAD Data mark can be downloaded from: http://industrial.panasonic.com/ac/e/
Single side stable type
External dimensions
Standard PC board terminal
General tolerance: ±0.3 ±.012
2 coil latching type
External dimensions
Standard PC board terminal
General tolerance: ±0.3 ±.012
15.00
.591 7.40
.291
0.25
.010
1.15
.020
0.50
5.08 2.54
.045 .200 .100
5.08
.200
8.20
.323
3.50
.138
.026
0.65
15.00
1.15
.020
5.08 2.54
7.40
5.08
0.25
.591
0.50
.045 .200 .100
.291
.200
.010
.026
0.65
3.50
.138
8.20
.323
PC board pattern
(Bottom view)
Tolerance: ±0.1 ±.004
5.08
2.54
8-1.0 dia.
10.16
.200
.100
8-.039 dia.
.400
Schematic (Bottom view)
Single side stable
(Deenergized condition)
Direction indication
12 10 9 8
1 3 4 5
+
–
PC board pattern
(Bottom view)
Tolerance: ±0.1 ±.004
5.08
2.54
10-1.0 dia.
12.7
.200
.100
10-.039 dia.
.500
Schematic (Bottom view)
2 coil latching
(Reset condition)
Direction indication
12 10 9 8 7
1 3 4 5 6
+
–
+
–
CAD Data
CAD Data
.591
15
0.65
.026 5.08
.200
5.08
.200
2.54
.100
8.2
.323
0.5
.020
0.25
.010
8.4
.331
9.4±0.5
.370±.020
.291
7.4 .591
15
0.65
.026 5.08
.200
5.08
.200
2.54
.100
8.2
.323
0.5
.020
0.25
.010
8.4
.331
9.4±0.5
.370±.020
.291
7.4
5.08
.200
1
.039
.100
2.54
.124
3.16
7.24
.285
5.08
.200
1
.039
.100
2.54
.124
3.16
7.24
.285
Single side stable
(Deenergized condition)
2 coil latching
(Reset condition)
Direction indication
1 3 4 5
12 10 9 8
+
–
Direction indication
+
–
+
–
12 10 9 8 7
1 3 4 5 6
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/
TX
ASCTB18E 201209-T
NOTES
1. Packing style
1) The relay is packed in a tube with the
relay orientation mark on the left side, as
shown in the figure below.
2) Tape and reel packing (surface-mount
terminal type)
(1) Tape dimensions
mm inch
(2) Dimensions of plastic reel
mm inch
2. Automatic insertion
To maintain the internal function of the
relay, the chucking pressure should not
exceed the values below.
Chucking pressure in the direction A:
4.9 N {500gf} or less
Chucking pressure in the direction B:
9.8 N {1 kgf} or less
Chucking pressure in the direction C:
9.8 N {1 kgf} or less
Please chuck the portion.
Avoid chucking the center of the relay.
In addition, excessive chucking pressure
to the pinpoint of the relay should be
avoided.
Orientation (indicates PIN No.1) stripe
Stopper (gray) Stopper (green)
Relays
Tape coming out direction
16.0
.630 .394
4.0
24.0±0.3
.945±.012 ±0.2
9.2±.008
.362
0.4
C
BA
D
Relay polarity bar
(Z type) 2.0
11.5
1.75
15.5
.059 dia.
+.004
0
1.5 dia.
+0.1
0
.157 .016
.079 .069
.610
.453
10.0
2.0
.079
13 dia.
.512 dia.
21 dia.
.827 dia. 80 dia.
3.150 dia.
380 dia.
14.961 dia.
For general cautions for use,
please refer to the “Cautions for
use of Signal Relays” or “General
Application Guidelines”.
ACB
