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TQ2SS-L-4.5V-Z Equivalent & Substitute Parts
Part Overview
The TQ2SS-L-4.5V-Z is an active telecom relay manufactured by Panasonic Electric Works, configured as a DPDT (2 Form C) surface mount component with 2A contact rating and 4.5VDC coil voltage. This latching, single-coil relay is designed for telecom applications requiring switching of 125VAC or 220VDC maximum loads. The part is RoHS compliant and available in tape & reel packaging with 773 units in current stock. Equivalent substitute parts are identified to provide procurement flexibility and supply chain alternatives for applications where the original specification can be met by alternative manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Coil Voltage | 4.5VDC |
| Contact Form | DPDT (2 Form C) |
| Contact Rating (Current) | 2 A |
| Switching Voltage | 125VAC, 220VDC - Max |
| Mounting Type | Surface Mount |
| Coil Type | Latching, Single Coil |
| Termination Style | Gull Wing |
| Operating Temperature Range | -40°C ~ 85°C |
| Relay Type | Telecom |
Substitute Part Grouping Explanation
The substitute part 3-1462037-1 (TE Connectivity Potter & Brumfield Relays) qualifies as an equivalent based on the following matching parameters:
- Coil voltage: 4.5VDC (identical)
- Contact form: DPDT (2 Form C) (identical)
- Contact rating: 2 A (identical)
- Mounting type: Surface Mount (identical)
- Coil type: Latching, Single Coil (identical)
- Termination style: Gull Wing (identical)
- Operating temperature range: -40°C ~ 85°C (identical)
- Relay type: Telecom (identical)
- Must operate voltage: 3.38 VDC (identical)
The substitute part meets all critical functional and mechanical parameters required for direct substitution in applications designed for the TQ2SS-L-4.5V-Z.
Parameter Comparison
| Parameter | TQ2SS-L-4.5V-Z (Panasonic) | 3-1462037-1 (TE Connectivity) |
|---|---|---|
| Manufacturer | Panasonic Electric Works | TE Connectivity Potter & Brumfield Relays |
| Coil Voltage | 4.5VDC | 4.5VDC |
| Contact Form | DPDT (2 Form C) | DPDT (2 Form C) |
| Contact Rating (Current) | 2 A | 2 A |
| Switching Voltage | 125VAC, 220VDC - Max | 250VAC, 220VDC - Max |
| Coil Current | 15.6 mA | 22.2 mA |
| Coil Resistance | 289 Ohms | 203 Ohms |
| Mounting Type | Surface Mount | Surface Mount |
| Termination Style | Gull Wing | Gull Wing |
| Operate Time | 4 ms | 3 ms |
| Release Time | 4 ms | 3 ms |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Contact Material | Silver Nickel (AgNi), Gold (Au) | Palladium (Pd), Ruthenium (Ru), Gold (Au) |
| Coil Type | Latching, Single Coil | Latching, Single Coil |
| Must Operate Voltage | 3.38 VDC | 3.38 VDC |
| Relay Type | Telecom | Telecom |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
| Packaging | Tape & Reel (TR) | Cut Tape (CT) & Digi-Reel® |
| Current Inventory | 773 Pcs | 2400 Pcs |
Engineering Selection Recommendations
Both the TQ2SS-L-4.5V-Z and 3-1462037-1 are active products with current manufacturing status. The TQ2SS-L-4.5V-Z is RoHS compliant, while the 3-1462037-1 meets ROHS3 compliance standards. Both parts carry EAR99 ECCN classification and share identical HTSUS coding (8536.41.0020).
The substitute part 3-1462037-1 offers higher AC switching voltage capability (250VAC versus 125VAC) and faster switching times (3 ms versus 4 ms), with greater current inventory availability (2400 units versus 773 units). The substitute part includes hermetic sealing and REACH unaffected status. Coil current and resistance differ between the two parts due to design variations in the substitute manufacturer's implementation.
Selection between these parts should be based on application-specific requirements for switching voltage, coil drive current capability, switching speed, and packaging format preferences.
Frequently Asked Questions (FAQ)
Q: Can the 3-1462037-1 be used as a direct replacement for the TQ2SS-L-4.5V-Z?
A: Yes. Both parts share identical coil voltage (4.5VDC), contact form (DPDT), current rating (2A), mounting type (surface mount), termination style (gull wing), operating temperature range (-40°C to 85°C), and must-operate voltage (3.38VDC). These parameters define functional compatibility for telecom relay applications.
Q: What are the differences in switching voltage ratings?
A: The TQ2SS-L-4.5V-Z switches 125VAC or 220VDC maximum. The 3-1462037-1 switches 250VAC or 220VDC maximum. The substitute part provides higher AC voltage capability while maintaining identical DC switching voltage.
Q: How do the switching times compare?
A: The TQ2SS-L-4.5V-Z operates and releases in 4 ms each. The 3-1462037-1 operates and releases in 3 ms each. The substitute part provides faster switching response.
Q: Are there differences in coil drive requirements?
A: The TQ2SS-L-4.5V-Z requires 15.6 mA coil current with 289 Ohms resistance. The 3-1462037-1 requires 22.2 mA coil current with 203 Ohms resistance. Circuit design must accommodate the higher coil current demand of the substitute part.
Q: What packaging options are available?
A: The TQ2SS-L-4.5V-Z is supplied in tape & reel (TR) format. The 3-1462037-1 is available in cut tape (CT) and Digi-Reel® formats. Packaging selection depends on assembly equipment and procurement requirements.
Q: Do both parts meet RoHS requirements?
A: Yes. The TQ2SS-L-4.5V-Z is RoHS compliant. The 3-1462037-1 is ROHS3 compliant. Both meet RoHS environmental standards.
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