TQ2SA-L2-5V Panasonic Relay or Contactor (Other) In Stock
Panasonic TQ2SA-L2-5V is a low-profile 5 V signal relay with dual-coil latching operation, 140 mW coil power, and compact 14 × 9 × 5.4 mm body for space-constrained PCB designs. RoHS-compliant with lead-free contacts. From $2.50 in stock worldwide shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- TQ2SA-L2-5V Datasheet PDF
- Category
- Relay or Contactor
- Price
- From $1.4500(MOQ 1)
- Temp Range
- -40.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 5 V nominal coil voltage with only 140 mW coil power minimizes MCU driver dissipation in battery-operated systems
- Low-profile 5.4 mm body height enables relay integration into slim enclosures and stacked PCB assemblies
- Dual-coil latching (L2) design retains contact state without continuous coil energization, cutting standby power to 0 mW
- RoHS-compliant lead-free construction with 20-week lead-time planning support for production scheduling
Applications
The TQ2SA-L2-5V latching relay is used in smart meters, building automation controllers, and home energy management systems where holding a switched state without continuous power is essential. Its 5 V coil suits direct GPIO driving from microcontrollers without additional level-shifting, simplifying driver circuit design. The compact 14 × 9 × 5.4 mm footprint also fits battery-powered IoT nodes and portable medical devices where board space is tightly constrained.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 20Weeks |
| YTEOL | 7.87 |
| Additional Feature | LOW PROFILE |
| Body Breadth | 9mm |
| Body Height | 5.4mm |
| Body Length or Diameter | 14mm |
| Coil Current(DC)-Max | 0.028A |
| Coil Operate Voltage(DC) | 3.75V |
| Coil Power | 140mW |
| Coil Release Voltage(DC) | 3.75V |
| Coil Resistance | 178Ω |
| Coil Voltage(DC)-Max | 5V |
| Coil Voltage-Nom | 5V |
| Coil/Input Supply Type | DC |
| Contact (AC) Max Power Rating R Load | 62.5VA@125VAC |
| Contact (AC) Max Rating R Load | 2A@125VAC |
| Contact Current(AC)-Max | 2A |
| Contact Current(DC)-Max | 2A |
| Contact (DC) Max Power Rating R Load | 60W@220VDC |
| Contact (DC) Max Rating R Load | 2A@220VDC |
| Contact Resistance | 75mΩ |
| Contact Voltage(AC)-Max | 125V |
| Contact Voltage(DC)-Max | 220V |
| Contact/Output Supply Type | AC/DC |
| Electrical Life | 100000 Cycle(s) |
| End Contact Material | Silver Nickel |
| End Contact Plating | GOLD |
| Input Switching Control Type | Random |
| Insulation Resistance | 1000000000Ω |
| Mounting Feature | SURFACE MOUNT-STRAIGHT |
| Operate Time | 4ms |
| Packing Method | TUBE |
| Physical Dimension | 14mm x 9mm x 5.4mm |
| Reference Standard | CSA; UL |
| Relay Action | LATCHED |
| Relay Form | 2 FORM C |
| Relay Function | DPDT |
| Relay Type | POWER/SIGNAL RELAY |
| Release Time | 4ms |
| Surface Mount | NO |
| Termination Type | SOLDER |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.49.00.50 |
| Country of Origin | Japan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TQ2SA-L2-5V:
suggested
suggested
Frequently Asked Questions
How does the latching operation of the TQ2SA-L2-5V reduce power consumption in IoT applications?
The TQ2SA-L2-5V uses a dual-coil latching mechanism that requires only a short 140 mW pulse to set or reset the contacts, after which the relay holds its state with 0 mW standby power. In a battery-powered IoT node that switches state infrequently—perhaps once every hour—this eliminates the continuous 28 mA draw of a non-latching relay, extending battery life by weeks or months.
Can the TQ2SA-L2-5V coil be driven directly from a 3.3 V MCU GPIO without an additional driver transistor?
The TQ2SA-L2-5V has a nominal coil operate voltage of 3.75 V minimum, so a 3.3 V GPIO cannot directly guarantee reliable operation without a driver transistor or boost circuit. However, a simple NPN transistor or MOSFET driver powered from a 5 V rail, switched by the 3.3 V GPIO, will reliably energize the 5 V coil while keeping the 28 mA coil current off the MCU pin.
What are the body dimensions of the TQ2SA-L2-5V and how does its low profile benefit stacked PCB designs?
The TQ2SA-L2-5V measures 14 mm long × 9 mm wide × 5.4 mm tall, making it one of the slimmest relays in the TQ2 series. This 5.4 mm profile fits between PCB layers in stacked board assemblies with 8 mm or greater inter-board spacing, and comfortably meets the height constraints of compact product enclosures in smart home and metering applications.
What is the factory lead time for the TQ2SA-L2-5V, and how should supply chain planners account for it?
The factory lead time for the TQ2SA-L2-5V is 20 weeks. Supply chain planners building a production run of 10,000+ units should place purchase orders at least 5 months before the scheduled assembly date and consider buffer stock of 500–1,000 units to absorb demand spikes, as relay lead times from Panasonic are sensitive to seasonal semiconductor material constraints.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.1200 | $2.12 |
| 10+ | $2.0280 | $20.28 |
| 75+ | $1.5000 | $112.50 |
| 150+ | $1.4800 | $222.00 |
| 300+ | $1.4500 | $435.00 |
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