5V Bistable Latching Relay DPDT 2A 30VDC – HFD2/005-S-L2-D

$12.24 $14.59

5V Coil Bistable Latching Relay – DPDT HFD2/005-S-L2-D

This compact 5V bistable latching relay (model HFD2/005-S-L2-D) is an essential component for electronics projects, PCB designs, and automation circuits. With a DPDT (Double Pole Double Throw) configuration and a 10-pin layout, this relay holds its switched state without continuous coil power — making it ideal for low-power, energy-efficient applications. Made in Mainland China.

Key Specifications

Model: HFD2/005-S-L2-D
Coil Voltage: 5V DC
Contact Form: 2CO (DPDT – Double Pole Double Throw)
Contact Rating: 1A @ 125VAC / 2A @ 30VDC
Contact Material: Ag-AuAg8 (Silver / Gold-Silver alloy)
Coil Consumption: 150mW
Operate / Release Time: 4ms / 3ms
Operating Temperature: -40°C to +85°C
Pin Count: 10 Pins
Color: White
Dimensions (approx.): 2 × 1 × 1 cm (0.79 × 0.39 × 0.39 inch)
Contact Load: Low Power
EU LVD: Low Voltage – Below 50VAC or 75VDC

Why Choose a Bistable Latching Relay?

Unlike standard relays, a bistable (latching) relay maintains its last switched position even after coil power is removed. This means zero standby power consumption once set — perfect for battery-powered devices, smart home automation, remote switching circuits, and any application where power efficiency is critical.

Package Includes

1 × HFD2/005-S-L2-D Bistable Latching Relay

Notes

Please allow 0–3mm measurement tolerance due to manual measuring.
Actual product color may vary slightly from screen images due to monitor differences.

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Frequently Asked Questions

Q: What does "bistable latching relay" mean and how does the HFD2/005 work?

A: A bistable latching relay has two stable positions — ON and OFF — and holds whichever state it was last set to, even when coil power is removed. The HFD2/005-S-L2-D uses a 5V DC pulse to set or reset the relay position, consuming no ongoing power once switched. This makes it highly efficient for battery-operated and low-power circuit designs.

Q: What is the contact rating of this relay?

A: This DPDT relay is rated at 1A @ 125VAC for AC circuits and 2A @ 30VDC for DC circuits. It is designed for low-power signal switching applications and should not be used to switch heavy loads beyond these ratings.

Q: Is this relay compatible with standard PCB layouts?

A: Yes. The HFD2/005-S-L2-D features a standard 10-pin through-hole configuration that is compatible with most PCB designs that support the HFD2 footprint. Always verify your PCB footprint and pin assignments against the relay's datasheet before soldering.