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G5V-1

Omron
Industry-standard miniature signal relay offered in many coil-voltage variants for more robust or precision switching.

Overview

The Omron G5V-1 is a highly reliable, miniature signal relay designed for low-level switching applications in a compact SPDT (1 Form C) configuration. It is an industry-standard component known for its small footprint and fully sealed construction, making it suitable for environments where exposure to dust or soldering flux is a concern. The relay is optimized for signal-level loads rather than high-power switching.

Why Choose This Part

The G5V-1 offers excellent sensitivity with a low power consumption coil, typically around 150mW. Its fully sealed structure allows for automatic soldering and cleaning processes, while the gold-plated crossbar contacts ensure high reliability when switching low-current loads.

Applications

Telecommunications Equipment
Ideal for switching voice and data signals in PBX systems and communication hubs.
Testing and Measurement
Used in automated test equipment for signal routing and isolation between measurement stages.
Security Systems
Acts as a reliable dry-contact switch for alarm sensors and control panel outputs.
Audio Signal Routing
Provides clean switching for line-level audio signals with minimal distortion.

Getting Started

When designing with the G5V-1, ensure that the PCB layout accounts for the specific coil voltage of the selected variant, such as 5VDC, 12VDC, or 24VDC. It is standard practice to include a flyback diode (like a 1N4148) in parallel with the coil to protect driving circuitry from inductive voltage spikes. Ensure the load remains within the signal-level rating, typically 1A at 24VDC or 0.5A at 125VAC.

Part of Omron G5V Relays family » G5V-1

G5V-1 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Coil Current Coil Voltage Must Operate Voltage Must Release Voltage Stock
G5V-1 (this part)
G5V-1 DC5 (Omron Electronics Inc-EMC Div) 30 mA 5V 4 V 0.5 V 17,586
G5V-1 DC12 (Omron Electronics Inc-EMC Div) 12.5 mA 12V 9.6 V 1.2 V 37,716
G5V-1 DC24 (Omron Electronics Inc-EMC Div) 6.3 mA 24V 19.2 V 2.4 V 48,518
Also available as: G5V-1-DC5, G5V-1-DC12, G5V-1-DC24

Also Consider

IM03GR TE Connectivity - A high-sensitivity Slimline Signal Relay with a lower profile for high-density PCB mounting.