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TX2SL-12V-Z Telecom Relay Equivalent & Substitute Parts
Part Overview
The TX2SL-12V-Z is a Panasonic Electric Works telecom relay with DPDT (2 Form C) contact configuration, rated for 2A at 12VDC. This surface mount component features gull wing termination and sealed construction suitable for telecommunications applications. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible relay functionality.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Coil Voltage | 12VDC |
| Contact Form | DPDT (2 Form C) |
| Contact Rating (Current) | 2 A |
| Switching Voltage (Max) | 220VDC |
| Coil Current | 11.7 mA |
| Coil Type | Non Latching |
| Termination Style | Gull Wing |
| Seal Rating | Sealed - Fully |
| Must Operate Voltage | 9 VDC |
| Must Release Voltage | 1.2 VDC |
| Operate Time | 4 ms |
| Release Time | 4 ms |
| Operating Temperature Range | -40°C to 85°C |
| Contact Material | Silver (Ag), Gold (Au) |
| Coil Resistance | 1.03 kOhms |
| Mounting Type | Surface Mount |
Substitute Part Grouping Explanation
Substitution for the TX2SL-12V-Z is determined by strict equivalence across the following critical parameters:
- Coil voltage: 12VDC
- Contact configuration: DPDT (2 Form C)
- Contact current rating: 2 A
- Switching voltage capability: 220VDC minimum
- Coil current: 11.7 mA
- Operate and release times: 4 ms each
- Operating temperature range: -40°C to 85°C
- Termination style: Gull Wing
- Mounting type: Surface Mount
- Seal rating: Fully sealed
Panasonic Electric Works TX2SA and TX2SS series relays meet all these parameters and are classified as parametric equivalents. The TE Connectivity V23079D1003B301 meets all electrical and mechanical parameters but represents a different manufacturer and relay type classification (general purpose versus telecom), making it a similar substitute rather than a direct parametric equivalent.
Parameter Comparison
| Parameter | TX2SL-12V-Z | TX2SA-12V-X | TX2SA-12V-Z | TX2SS-12V-X | TX2SS-12V-Z | V23079D1003B301 |
|---|---|---|---|---|---|---|
| Manufacturer | Panasonic Electric Works | Panasonic Electric Works | Panasonic Electric Works | Panasonic Electric Works | Panasonic Electric Works | TE Connectivity Potter & Brumfield |
| Product Status | Obsolete | Active | Active | Active | Active | Active |
| Coil Voltage | 12VDC | 12VDC | 12VDC | 12VDC | 12VDC | 12VDC |
| Contact Form | DPDT (2 Form C) | DPDT (2 Form C) | DPDT (2 Form C) | DPDT (2 Form C) | DPDT (2 Form C) | DPDT (2 Form C) |
| Contact Rating (Current) | 2 A | 2 A | 2 A | 2 A | 2 A | 2 A |
| Switching Voltage (Max) | 220VDC | 220VDC | 220VDC | 220VDC | 220VDC | 250VAC, 220VDC |
| Coil Current | 11.7 mA | 11.7 mA | 11.7 mA | 11.7 mA | 11.7 mA | 11.7 mA |
| Coil Type | Non Latching | Non Latching | Non Latching | Non Latching | Non Latching | Non Latching |
| Termination Style | Gull Wing | Gull Wing | Gull Wing | Gull Wing | Gull Wing | Gull Wing |
| Seal Rating | Sealed - Fully | Sealed - Fully | Sealed - Fully | Sealed - Fully | Sealed - Fully | Not specified |
| Must Operate Voltage | 9 VDC | 9 VDC | 9 VDC | 9 VDC | 9 VDC | 9 VDC |
| Must Release Voltage | 1.2 VDC | 1.2 VDC | 1.2 VDC | 1.2 VDC | 1.2 VDC | 1.2 VDC |
| Operate Time | 4 ms | 4 ms | 4 ms | 4 ms | 4 ms | 4 ms |
| Release Time | 4 ms | 4 ms | 4 ms | 4 ms | 4 ms | 4 ms |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C | -40°C to 85°C |
| Contact Material | Silver (Ag), Gold (Au) | Silver (Ag), Gold (Au) | Silver (Ag), Gold (Au) | Silver (Ag), Gold (Au) | Silver (Ag), Gold (Au) | Silver Nickel (AgNi), Gold (Au) |
| Coil Resistance | 1.03 kOhms | 1.03 kOhms | 1.03 kOhms | 1.03 kOhms | 1.03 kOhms | 1.03 kOhms |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Packaging | Not specified | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) | Cut Tape (CT) & Digi-Reel® |
| RoHS Status | Not specified | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant | RoHS Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
For applications currently using the obsolete TX2SL-12V-Z, the TX2SA-12V-Z and TX2SS-12V-Z are the primary active substitutes from Panasonic Electric Works. Both parts maintain full parametric equivalence and are available in production quantities. TX2SA-12V-Z offers the highest inventory availability (17,132 units) and ROHS3 compliance. TX2SS-12V-Z provides an alternative with RoHS compliance and adequate stock (790 units).
The TX2SA-12V-X and TX2SS-12V-X variants are functionally equivalent but differ only in packaging designation. Selection between these options depends on procurement and assembly requirements.
The TE Connectivity V23079D1003B301 is a cross-manufacturer alternative that meets all electrical and mechanical specifications. This part is classified as a general purpose relay rather than a telecom relay and carries ROHS3 compliance. It is suitable for applications where manufacturer diversity is acceptable and provides the highest inventory level (9,719 units).
Frequently Asked Questions (FAQ)
Q: Can TX2SA-12V-Z directly replace TX2SL-12V-Z in existing designs?
A: Yes. TX2SA-12V-Z is a parametric equivalent meeting all electrical specifications, coil voltage, contact configuration, timing, and operating temperature requirements. The primary difference is product status (active versus obsolete) and packaging format (Tape & Reel).
Q: What is the difference between TX2SA and TX2SS series relays?
A: Both series meet identical electrical and mechanical parameters for this 12VDC, 2A DPDT configuration. The difference lies in base product designation and RoHS compliance level. TX2SA carries ROHS3 compliance while TX2SS carries standard RoHS compliance. Selection between series does not affect functional performance.
Q: Is the TE Connectivity V23079D1003B301 a suitable substitute?
A: Yes, for applications where cross-manufacturer substitution is acceptable. The V23079D1003B301 meets all electrical and mechanical parameters. It is classified as a general purpose relay versus telecom relay, and features silver nickel contact material instead of pure silver. Switching voltage capability includes 250VAC in addition to 220VDC.
Q: What packaging options are available for substitutes?
A: Panasonic Electric Works TX2SA and TX2SS substitutes are supplied in Tape & Reel (TR) format. The TE Connectivity V23079D1003B301 is available in Cut Tape (CT) and Digi-Reel® packaging. Packaging selection depends on assembly equipment and procurement workflow requirements.
Q: Are all substitute parts RoHS compliant?
A: TX2SA-12V-X and TX2SA-12V-Z are ROHS3 compliant. TX2SS-12V-X and TX2SS-12V-Z are RoHS compliant. The TE Connectivity V23079D1003B301 is ROHS3 compliant. The original TX2SL-12V-Z RoHS status is not specified.
Q: What inventory levels are available for each substitute?
A: TX2SA-12V-Z: 17,132 units. TX2SA-12V-X: 7,187 units. TX2SS-12V-Z: 790 units. TX2SS-12V-X: 727 units. V23079D1003B301: 9,719 units.
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