TX-TH
ORDERING INFORMATION
Small size , controlled 7.5A
inrush current possible TX RELAYS
TH types
TESTING
FEATURES
1. Small size, controlled 7.5A inrush
current possible
2. 2,000 V breakdown voltage between
contact and coil
The body bloc k construction of the coil
that is sealed at f ormation off ers a high
breakdown v oltage of 2,000 V between
contact and coil, and 1,000 V between
open contacts.
3. 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)
4. 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.
5. High contact capacity: 2 A 30 V DC
6. Compact size
15.0(L) × 7.4(W) × 8.2(H) .591(L) ×
.291(W) × .323(H)
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.
9. A range of surface-mount types is
also available
SA: Low-profile surface-mount
terminal type
SS: Space saving surface-mount
terminal type
TYPICAL APPLICATIONS
1. Air-conditioning control (solenoid
load)
2. Others, High-capacity control etc.
Nominal coil voltage (DC)*
1.5, 3, 4.5, 5, 6, 9, 12, 24, 48V
Contact arrangement
2: 2 Form C
TX 2 TH
Terminal shape
Nil: Standard PC board terminal or surface-mount terminal
Contact material
TH: Power type (Ag+Au clad/stationary, movable)
Operating function
Nil:
L:
L2:
LT:
Single side stable
1 coil latching
2 coil latching
2 coil latching
Surface-mount availability
Nil:
SA:
SS:
Standard PC board terminal type
SA type
SS 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)
Notes:1. *48 V coil type: Single side stable only
2. In case of 5 V transistor drive circuit, it is recommended to use 4.5 V type relay.
RoHS compliant
ASCTB20E 201201-T
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e
TX-TH
TYPES
1. Standard PC board terminal
Standard packing: Tube: 40 pcs.; Case: 1,000 pcs.
2. Surface-mount terminal
1) Tube packing
: For each surface-mounted terminal identification, input the following letter. SA type: A, SS type: S
Standard packing: Tube: 40 pcs.; Case: 1,000 pcs.
2) Tape and reel packing
: For each surface-mounted terminal identification, input the following letter. SA type: A, SS type: S
Standard packing: Tape and reel: 500 pcs.; Case: 1,000 pcs.
Note: 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.
RATING
1. Coil data
1) Single side stable
Contact
arrangement Nominal coil
voltage Single side stable 1 coil latching 2 coil latching (L2) 2 coil latching (LT)
Part No. Part No. Part No. Part No.
2 Form C
1.5V DC TX2-1.5V-TH TX2-L-1.5V-TH TX2-L2-1.5V-TH TX2-LT-1.5V-TH
3V DC TX2-3V-TH TX2-L-3V-TH TX2-L2-3V-TH TX2-LT-3V-TH
4.5V DC TX2-4.5V-TH TX2-L-4.5V-TH TX2-L2-4.5V-TH TX2-LT-4.5V-TH
5V DC TX2-5V-TH TX2-L-5V-TH TX2-L2-5V-TH TX2-LT-5V-TH
6V DC TX2-6V-TH TX2-L-6V-TH TX2-L2-6V-TH TX2-LT-6V-TH
9V DC TX2-9V-TH TX2-L-9V-TH TX2-L2-9V-TH TX2-LT-9V-TH
12V DC TX2-12V-TH TX2-L-12V-TH TX2-L2-12V-TH TX2-LT-12V-TH
24V DC TX2-24V-TH TX2-L-24V-TH TX2-L2-24V-TH TX2-LT-24V-TH
48V DC TX2-48V-TH — — —
Contact
arrangement Nominal coil
voltage Single side stable 1 coil latching 2 coil latching (L2) 2 coil latching (LT)
Part No. Part No. Part No. Part No.
2c
1.5V DC TX2S-1.5V-TH TX2S-L-1.5V-TH TX2S-L2-1.5V-TH TX2S-LT-1.5V-TH
3V DC TX2S-3V-TH TX2S-L-3V-TH TX2S-L2-3V-TH TX2S-LT-3V-TH
4.5V DC TX2S-4.5V-TH TX2S-L-4.5V-TH TX2S-L2-4.5V-TH TX2S-LT-4.5V-TH
5V DC TX2S-5V-TH TX2S-L-5V-TH TX2S-L2-5V-TH TX2S-LT-5V-TH
6V DC TX2S-6V-TH TX2S-L-6V-TH TX2S-L2-6V-TH TX2S-LT-6V-TH
9V DC TX2S-9V-TH TX2S-L-9V-TH TX2S-L2-9V-TH TX2S-LT-9V-TH
12V DC TX2S-12V-TH TX2S-L-12V-TH TX2S-L2-12V-TH TX2S-LT-12V-TH
24V DC TX2S-24V-TH TX2S-L-24V-TH TX2S-L2-24V-TH TX2S-LT-24V-TH
48V DC TX2S-48V-TH — — —
Contact
arrangement Nominal coil
voltage Single side stable 1 coil latching 2 coil latching (L2) 2 coil latching (LT)
Part No. Part No. Part No. Part No.
2 Form C
1.5V DC TX2S-1.5V-TH-Z TX2S-L-1.5V-TH-Z TX2S-L2-1.5V-TH-Z TX2S-LT-1.5V-TH-Z
3V DC TX2S-3V-TH-Z TX2S-L-3V-TH-Z TX2S-L2-3V-TH-Z TX2S-LT-3V-TH-Z
4.5V DC TX2S-4.5V-TH-Z TX2S-L-4.5V-TH-Z TX2S-L2-4.5V-TH-Z TX2S-LT-4.5V-TH-Z
5V DC TX2S-5V-TH-Z TX2S-L-5V-TH-Z TX2S-L2-5V-TH-Z TX2S-LT-5V-TH-Z
6V DC TX2S-6V-TH-Z TX2S-L-6V-TH-Z TX2S-L2-6V-TH-Z TX2S-LT-6V-TH-Z
9V DC TX2S-9V-TH-Z TX2S-L-9V-TH-Z TX2S-L2-9V-TH-Z TX2S-LT-9V-TH-Z
12V DC TX2S-12V-TH-Z TX2S-L-12V-TH-Z TX2S-L2-12V-TH-Z TX2S-LT-12V-TH-Z
24V DC TX2S-24V-TH-Z TX2S-L-24V-TH-Z TX2S-L2-24V-TH-Z TX2S-LT-24V-TH-Z
48V DC TX2S-48V-TH-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)
1.5V DC
75%V or less of
nominal voltage*
(Initial)
10%V or more of
nominal voltage*
(Initial)
93.8mA 16Ω
140mW 150%V of
nominal voltage
3V DC 46.7mA 64.3Ω
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
48V DC 5.6mA 8,533Ω270mW 120%V of
nominal voltage
ASCTB20E 201201-T Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e
TX-TH
2) 1 coil latching
3) 2 coil latching (L2, LT)
*Pulse drive (JIS C 5442-1986)
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.
*2 Refer to 6. Conditions for operation, transport and storage mentioned in AMBIENT ENVIRONMENT (Page 24).
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)
1.5V DC
75%V or less of
nominal voltage*
(Initial)
75%V or less of
nominal voltage*
(Initial)
66.7mA 22.5Ω
100mW 150%V of
nominal voltage
3V DC 33.3mA 90Ω
4.5V DC 22.2mA 202.5Ω
5V DC 20mA 250Ω
6V DC 16.7mA 360Ω
9V DC 11.1mA 810Ω
12V DC 8.3mA 1,440Ω
24V DC 4.2mA 5,760Ω
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
1.5V DC
75%V or less of
nominal voltage*
(Initial)
75%V or less of
nominal voltage*
(Initial)
93.8mA 93.8mA 16Ω16Ω
140mW 140mW 150%V of
nominal voltage
3V DC 46.7mA 46.7mA 64.3Ω64.3Ω
4.5V DC 31mA 31mA 145Ω145Ω
5V DC 28.1mA 28.1mA 178Ω178Ω
6V DC 23.3mA 23.3mA 257Ω257Ω
9V DC 15.5mA 15.5mA 579Ω579Ω
12V DC 11.7mA 11.7mA 1,028Ω1,028Ω
24V DC 5.8mA 5.8mA 4,114Ω4,114Ω
Characteristics Item Specifications
Contact Arrangement 2 Form C
Initial contact resistance, max. Max. 100 mΩ (By voltage drop 6 V DC 1A)
Contact material Ag+Au plating
Rating
Nominal switching capacity 2 A 30 V DC, 0.5 A 125 V AC (resistive load)
Max. switching power 60 W, 60 VA (resistive load)
Max. switching voltage 220V DC, 250V AC
Max. switching current 7.5 A (When used at 7.5 A. Regarding connection method, you must follow the precaution, below*.)
Min. switching capacity (Reference value)*110µA 10mV DC
Nominal operating
power
Single side stable 140 mW (1.5 to 24 V DC), 270 mW (48 V DC)
1 coil latching 100 mW (1.5 to 24 V DC)
2 coil latching 140 mW (1.5 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)
Temperature rise (at 20°C 68°F)Max. 50°C
(By resistive method, nominal coil voltage applied to the coil; contact carrying current: 2A.)
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)
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),
Min. 105 (0.5 A 125 V AC resistive) (at 20 cpm)
Min. 2×105 (7.5 A inrush (250 ms)/1.5 A normal 30 V AC (cosφ = 0.4)) (ON/OFF = 1s/9s)
Conditions Conditions for operation, transport and storage*2Ambient temperature: –40°C to +85°C (up to 24 V coil) –40°F to +185°F
[–40°C to +70°C (48 V coil) –40°F to +158°F];
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
ASCTB20E 201201-T
Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e
TX-TH
REFERENCE DATA
For general REFERENCE DATA, DIMENSIONS and NOTES, please refer to the
“TX Relay”.
1. Electrical life (2 × 105 operation is possible)
Tested sample: TX2SA-24V-TH, 6 pcs.
Switching frequency: ON:OFF = 1s:9s
Ambient temperature: 25°C 77°F
Circuit
Condition: 30 V AC
Inrush current 7.5 A (execution value),
inrush time 250 ms
Normal current 1.5 A (execution value),
(inductive load cosφ = 0.4)
Inrush current wave form vs time
COM1 NO1
24V
60Hz
G
AC30V
Detection
Circuit
Contact Weld
Min 0.5s
Miss Contact
after 0.2s
–
+
Time (ms), Interval (200ms)
Contact current, A
12
8
4
0
-4
-8
-12
*Precaution
When using at 7.5 A, connection of NO
(pin #5 and #8) and COM (pin #4 and #9)
in the circuit is required.
Pin layout and schematic (BOTTOM VIEW)
1 coil latching
Load
ASCTB20E 201201-T Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e
