RA4-12W-K 12VDC 4C Sealed PCB Relay High Sensitivity 200mW Relay

The RA4-12W-K is a compact, high-sensitivity sealed PCB relay designed for telecommunications equipment, industrial controls, instrumentation, automation systems, security devices, and electronic switching applications. Featuring a 12VDC coil and a 4 Form C (4C) contact configuration, this relay delivers reliable multi-pole switching performance in applications requiring low power consumption and dependable operation.

Engineered with ultra-high sensitivity technology, the RA4-12W-K operates with low coil power consumption of just 200mW, making it ideal for energy-efficient control circuits and battery-powered equipment. Its bifurcated contact design ensures superior contact reliability, particularly in low-level signal switching applications where consistent electrical performance is critical.

The relay utilizes a fully sealed plastic enclosure that protects internal components from dust, contaminants, and environmental influences during operation and PCB cleaning processes. This sealed construction enhances long-term reliability and makes the relay suitable for demanding industrial and commercial environments.

With a 4 Form C (4PDT) contact arrangement, the RA4-12W-K provides flexible switching capabilities for multiple circuits within a compact footprint. The DIL pitch terminal layout allows straightforward PCB integration and supports efficient board assembly in high-density electronic designs.

Built to meet stringent quality and performance standards, the relay conforms to FCC Part 68 requirements and is recognized by UL and CSA. It provides a dielectric strength of 1,500VAC between coil and contacts, helping protect sensitive control circuitry from electrical interference and voltage transients. Additionally, a surge strength rating of 1,500V enhances protection against electrical spikes.

The RA4-12W-K offers a wide operating range and is available within a relay family that includes latching versions for applications requiring memory retention with minimal power consumption. RoHS compliance ensures adherence to modern environmental and manufacturing standards.

Key Features

12VDC coil operation

Form 4C (4PDT) contact configuration

Ultra-high sensitivity design

Low coil power consumption of 200mW

High-reliability bifurcated contacts

Plastic sealed construction

DIL pitch PCB terminals

Wide operating range

Dielectric strength of 1,500VAC between coil and contacts

Surge strength rating of 1,500V

FCC Part 68 compliant

UL and CSA recognized

RoHS compliant

Compact PCB mounting design

Latching version available within the series

Applications

Telecommunications equipment

Industrial automation systems

Electronic control circuits

Instrumentation equipment

Security and alarm systems

Data communication equipment

Signal switching applications

Measurement devices

Process control systems

General-purpose PCB switching circuits

Summary

The RA4-12W-K is a high-sensitivity 12VDC sealed PCB relay featuring a 4 Form C contact arrangement, low 200mW coil power consumption, bifurcated contacts, and robust electrical isolation. Its compact design, reliable switching performance, and industry-approved construction make it an excellent choice for telecommunications, automation, instrumentation, and electronic control applications.

What's in the box
1 x RA4-12W-K 12VDC 4C Sealed PCB Relay High Sensitivity 200mW Relay