HFD42-4.5-L13 Signal Subminiature Mini Sealed 1-Coil Latching Relay 4.5VDC

The HFD42-4.5-L13 is a compact subminiature sealed latching relay engineered for reliable low-power switching in advanced electronic systems. Featuring a Form 2C (DPDT / 2c/o) contact arrangement, this relay provides dependable dual-circuit control in applications where space efficiency and energy savings are essential.

This model operates with a 4.5VDC coil and a 203 coil resistance, utilizing a single-coil latching mechanism that maintains its switching state without requiring continuous coil power. This significantly reduces energy consumption, making it ideal for battery-powered devices, automation systems, and memory-state switching applications.

Its gold flash contacts offer excellent conductivity, low contact resistance, and reliable long-term performance for sensitive signal switching. The relay is rated for 1A at 30VDC and 0.5A at 125VAC (250VAC max), supporting both AC and DC switching requirements.

The sealed construction helps protect the internal contacts and mechanism from dust and environmental contaminants, improving durability and operational reliability in industrial and embedded electronic environments.

Features

Form 2C (DPDT / 2c/o) latching relay

Single-coil latching design for low power consumption

Compact subminiature sealed construction

4.5VDC coil operation with 203 resistance

Gold flash contacts for reliable signal switching

Supports 1A at 30VDC and 0.5A at 125VAC (250VAC Max)

Sealed housing for enhanced durability and protection

Specifications

Model: HFD42-4.5-L13

Brand: Hongfa

Device Type: Subminiature Sealed Latching Relay

Contact Form: Form 2C (DPDT / 2c/o)

Coil Rated Voltage: 4.5VDC

Coil Resistance: 203

Coil Type: Single Coil Latching

Electrical Rating:

1A at 30VDC

0.5A at 125VAC

250VAC Max

Contact Material: Gold Flash Contacts

AC/DC Voltage: DC

Applications

Battery-powered electronic devices

Industrial automation and control systems

Smart metering and embedded electronics

Signal routing and communication equipment

Energy-efficient memory-state switching applications

The HFD42-4.5-L13 offers compact size, efficient latching functionality, and reliable sealed performance, making it an ideal relay solution for modern low-power electronic applications.

What's in the box
1 x HFD42-4.5-L13 Signal Subminiature Mini Sealed 1-Coil Latching Relay 4.5VDC DPDT