G5V-1
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
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.
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 |



