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TQ2SL-L2-5V-Z Equivalent & Substitute Parts
Part Overview
The TQ2SL-L2-5V-Z is a telecom relay manufactured by Panasonic Electric Works, featuring dual-coil latching operation with DPDT (2 Form C) contact configuration. This surface mount component is designed for telecommunications applications requiring reliable switching at 2A contact rating and 5VDC coil voltage. The part is currently active in production with 849 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from qualified manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Coil Voltage | 5VDC |
| Contact Form | DPDT (2 Form C) |
| Contact Rating (Current) | 2 A |
| Mounting Type | Surface Mount |
| Coil Type | Latching, Dual Coil |
| Termination Style | Gull Wing |
| Operating Temperature Range | -40°C ~ 85°C |
| Coil Resistance | 178 Ohms |
| Must Operate Voltage | 3.75 VDC |
| Operate Time | 4 ms |
| Release Time | 4 ms |
Substitute Part Grouping Explanation
Substitution eligibility for the TQ2SL-L2-5V-Z is determined by the following critical parameters:
- Coil voltage: 5VDC
- Contact configuration: DPDT (2 Form C)
- Contact current rating: 2 A minimum
- Mounting type: Surface Mount
- Coil type: Latching, Dual Coil
- Termination style: Gull Wing
- Operating temperature range: -40°C ~ 85°C minimum
- Coil resistance: 178 Ohms
- Must operate voltage: 3.75 VDC maximum
The identified substitute part V23079E1201B301 meets all critical substitution criteria. While the substitute is classified as a general purpose relay rather than telecom-specific, it maintains electrical and mechanical compatibility across all specified parameters.
Parameter Comparison
| Parameter | TQ2SL-L2-5V-Z (Panasonic) | V23079E1201B301 (TE Connectivity) |
|---|---|---|
| Coil Voltage | 5VDC | 5VDC |
| Contact Form | DPDT (2 Form C) | DPDT (2 Form C) |
| Contact Rating (Current) | 2 A | 2 A |
| Switching Voltage (Max) | 125VAC, 220VDC | 250VAC, 220VDC |
| Coil Current | 28.1 mA | 28 mA |
| Coil Type | Latching, Dual Coil | Latching, Dual Coil |
| Mounting Type | Surface Mount | Surface Mount |
| Termination Style | Gull Wing | Gull Wing |
| Operating Temperature Range | -40°C ~ 85°C | -40°C ~ 85°C |
| Contact Material | Silver Nickel (AgNi), Gold (Au) | Silver Nickel (AgNi), Gold (Au) |
| Coil Resistance | 178 Ohms | 178 Ohms |
| Must Operate Voltage | 3.75 VDC | 3.75 VDC |
| Operate Time | 4 ms | 4 ms |
| Release Time | 4 ms | 4 ms |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Both the TQ2SL-L2-5V-Z and V23079E1201B301 are active production components with current inventory availability. The primary part maintains RoHS compliance, while the substitute achieves ROHS3 compliance with MSL 3 rating (168 hours). Both components carry EAR99 ECCN classification and identical HTSUS codes, indicating equivalent regulatory treatment. The substitute part offers higher maximum switching voltage (250VAC versus 125VAC), providing additional margin in AC switching applications. Selection between these parts should be based on application-specific requirements, supply chain considerations, and packaging preferences (Tape & Reel versus Cut Tape & Digi-Reel).
Frequently Asked Questions (FAQ)
Q: Can V23079E1201B301 directly replace TQ2SL-L2-5V-Z in existing designs?
A: Yes. Both relays share identical coil voltage, contact configuration, current rating, coil resistance, timing characteristics, and operating temperature range. Gull wing termination and surface mount packaging are identical. PCB layout compatibility is maintained.
Q: What is the difference between telecom relay and general purpose relay classifications?
A: Classification reflects intended application domain. Both parts meet identical electrical and mechanical specifications for this substitution. The general purpose designation of V23079E1201B301 does not indicate reduced performance or reliability for telecom applications.
Q: Are there packaging differences between these parts?
A: Yes. TQ2SL-L2-5V-Z is supplied in Tape & Reel (TR) packaging, while V23079E1201B301 is supplied in Cut Tape (CT) & Digi-Reel packaging. Both are surface mount compatible formats suitable for automated assembly.
Q: How do the switching voltage ratings differ?
A: TQ2SL-L2-5V-Z supports 125VAC and 220VDC maximum switching voltage. V23079E1201B301 supports 250VAC and 220VDC maximum switching voltage. The substitute provides higher AC switching capability while maintaining identical DC switching performance.
Q: What does MSL 3 (168 Hours) mean for V23079E1201B301?
A: Moisture Sensitivity Level 3 indicates the component requires controlled storage conditions with maximum floor life of 168 hours at 30°C and 85% relative humidity before reflow soldering. Standard moisture-barrier packaging and handling procedures apply.
Q: Are both parts RoHS compliant?
A: Yes. TQ2SL-L2-5V-Z is RoHS Compliant. V23079E1201B301 is ROHS3 Compliant, representing a more recent compliance standard. Both meet hazardous substance restrictions.
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