G5V-1-DC12
Overview
The Omron G5V-1-DC12 is a compact, board-level signal relay in the G5V series configured for a 12 V DC coil. It provides a small form-factor electromechanical switch for switching or isolating low-power signals in control and prototype circuits. Use it where a 12 V system rail is available and you need galvanic isolation or discrete switching.
Why Choose This Part
The G5V-1-DC12 combines a very small footprint with an industry-standard Omron relay design, making it easy to drop into PCB layouts that use a 12 V rail. Its electromechanical contacts give true galvanic isolation and predictable on/off behavior compared with solid-state switches. Its common series form factor also makes it easy to find equivalent coil voltages if your design changes.
Applications
Getting Started
Check the Omron G5V series datasheet for coil current and contact ratings before designing it into your board. Drive the 12 V coil with a suitable transistor or driver IC and always fit a flyback diode across the coil for DC operation; use a snubber or RC across contacts if switching inductive loads. Verify contact ratings for the signals you intend to switch and provide appropriate clearance and creepage on the PCB.
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-DC12 (this part) | — | — | — | — | 15,841 |
| 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 |



