NR-SD-5V Mini Telecom Relay Form 1C 5VDC Coil 1A PCB Relay

The NR-SD-5V Mini Telecom Relay is a compact, high-reliability PCB-mounted electromechanical relay designed for telecommunications systems, signal switching, instrumentation, security devices, and low-power electronic control applications. Featuring a 5V DC coil and a Form 1C (SPDT) contact configuration, this relay delivers precise and stable switching performance in an ultra-compact package.

With its miniature footprint of just 20 × 10 × 10 mm, the NR-SD-5V is optimized for high-density PCB designs where space is limited but reliable switching is essential. Its small form factor makes it ideal for modern electronic systems requiring efficient integration without compromising performance or durability.

The Form 1C contact arrangement provides a single changeover pole, enabling flexible switching between two circuits. With a maximum switching current of 1A and an electrical rating of 1A at 20VDC, this relay is well suited for signal-level switching, communication lines, and low-power control applications where accuracy and reliability are critical.

Operating from a 5V DC coil supply, the NR-SD-5V features a coil resistance of 170 and a coil power consumption of approximately 200mW. This efficient design ensures reliable actuation while maintaining low energy usage, making it suitable for both continuous and intermittent operation in electronic systems.

The relay uses gold alloy (AuCo) contacts, which provide excellent conductivity, low contact resistance, and strong resistance to oxidation. This ensures stable signal integrity and long operational life, particularly in sensitive telecom and data communication applications.

For enhanced safety and circuit protection, the NR-SD-5V provides 1kV isolation voltage between coil and contact circuits. UL and CSA approvals confirm compliance with international safety and quality standards, ensuring dependable performance in professional environments.

The polarized design ensures correct orientation during installation, reducing assembly errors and improving reliability in automated PCB manufacturing processes.

Key Features

5V DC coil operation

Form 1C (SPDT) contact configuration

Maximum switching current: 1A

Electrical rating: 1A at 20VDC

Miniature PCB telecom relay design

Coil resistance: 170

Coil power consumption: 200mW

Gold alloy (AuCo) contacts for signal integrity

Isolation voltage: 1kV

UL/CSA approved

8-pin PCB connection

Compact size: 20 × 10 × 10 mm

Polarized design for correct installation

Applications

Telecommunications equipment

Signal routing and switching systems

Data communication devices

Instrumentation and monitoring systems

Security and alarm systems

Low-power control circuits

Embedded electronic systems

Audio and signal switching applications

Test and measurement equipment

General-purpose PCB switching applications

Summary

The NR-SD-5V Mini Telecom Relay is a compact and reliable PCB relay featuring a 5VDC coil, Form 1C contact configuration, and 1A switching capability. With gold alloy contacts, polarized design, 1kV isolation, and UL/CSA approvals, it provides precise low-power switching performance ideal for telecommunications and sensitive electronic applications.

What's in the box
1 x NR-SD-5V Mini Telecom Relay Form 1C 5VDC Coil 1A PCB Relay