Hongfa Europe GMBH PCB Signal Relay, 24V DC Coil, DPDT, 2A, 250V AC Switching, Gold Plated Contacts HFD2/024-S-D

The Hongfa Europe GMBH HFD2/024-S-D is a PCB signal relay engineered for compact control systems and electronic switching, offering a 24V DC coil and double pole double throw (DPDT) contact configuration. Designed to switch both AC and DC loads reliably, this relay is ideal for applications requiring stable operation and electrical isolation on printed circuit boards.

This relay supports a switching current of up to 2A, with a maximum switching voltage of 250V AC or 220V DC, thus accommodating a range of signal and low-power power circuit control scenarios. Its gold plated contact material ensures optimal conductivity and durability, reducing the risk of contact oxidation and guaranteeing consistent signal transmission. The relay's sensitive coil operates at a power of 150mW, making it suitable for energy-efficient or battery-powered control architectures.

Engineered for PCB integration, the unit measures just 20.2mm in length, 10.2mm in width, and 10.6mm in height, allowing mounting in space-constrained modules or multi-channel relay banks. A robust service temperature range between -40°C and 85°C makes this relay fit for both industrial and demanding laboratory environments. Coil resistance is rated at 3800Ω, supporting efficient actuation with minimal control current, and the contact resistance is specified at 100mΩ to ensure low-loss performance.

The HFD2/024-S-D relay offers DPDT switching, supporting a wide application range including signal switching, circuit isolation, small loads in control panels, industrial automation, communications equipment, automotive electronics, and process control. The high isolation voltage of 1.5kVAC between coil and contacts enhances safety and system integrity. Terminal style is configured for direct PCB mounting, streamlining assembly in compact electronic devices and modules.

This relay is compliant with RoHS standards, aligning with modern regulatory and environmental requirements. Its performance makes it the preferred choice for engineers designing instrumentation, automation, and signal conditioning circuits where reliability, compact footprint, and precise operation are essential.

Common industrial and commercial use cases include process control systems, communication switchgear, laboratory equipment, signal conditioning modules, and automotive relay panels. The non-latching electromagnetic design allows single-side stable switching ideal for control logic circuits and automatic safety reset operations.

For more versatile relays, related signal relays with differing coil voltages and contact ratings can be browsed in the Signal Relay category of EnvMart or the Hongfa Europe GMBH brand collection.