G3VM-KR Slim SOP 4-Pin MOSFET Relays

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Description

Omron Electronics G3VM-KR MOSFET relays are compact, normally open solid-state relays designed for high switching capacity and low ON-resistance. They support load voltages up to 60V, continuous load currents up to 1A, and provide 3750Vrms input-to-output isolation in a slim SOP 4-pin package.

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Omron G3VM-KR Slim SOP 4-Pin MOSFET Relays

Introduction

The Omron G3VM-KR series consists of compact solid-state MOSFET relays designed for reliable low-voltage load switching. Housed in a slim SOP 4-pin package, these relays provide an efficient alternative to electromechanical relays where compact size, silent operation, and long switching life are important.

Part Description

Omron G3VM-KR MOSFET relays are normally open, optically isolated solid-state switching devices. An internal LED input activates a photovoltaic driver and MOSFET output stage, allowing a control circuit to switch a load while maintaining electrical isolation between input and output.

Key characteristics include:

Slim SOP 4-pin surface-mount package
Normally open MOSFET relay output
Load voltage capability up to 60 V
Continuous load current support up to 1 A
Low ON-resistance for reduced power loss
3750 Vrms input-to-output isolation
Quiet, bounce-free solid-state switching
High reliability without mechanical contacts

The G3VM-KR family is particularly suited to space-constrained electronics that need isolated switching of DC or low-frequency AC signals and loads.

Applications

Potential applications for the Omron G3VM-KR MOSFET relay include:

Battery-powered load control
Test and measurement equipment
Data acquisition systems
Industrial control interfaces
Programmable logic controller I/O modules
Security and access-control equipment
Telecommunications equipment
Consumer electronics
Medical instrumentation
Automotive low-voltage electronic subsystems
Semiconductor test fixtures
Multiplexed signal switching circuits

Industries

The G3VM-KR relay can be used across a range of industries, including:

Industrial automation
Test and measurement
Medical electronics
Telecommunications
Consumer electronics
Automotive electronics
Building automation
Energy monitoring
Aerospace and defense electronics
Laboratory and research equipment

Usage Ideas

Isolated Microcontroller Load Switch
Use the relay to allow a microcontroller output to safely switch a 24 V DC solenoid, indicator, or low-power actuator while maintaining isolation from the controller circuitry.
Compact Automated Test Multiplexer
Build a multi-channel test fixture that uses several G3VM-KR relays to connect measurement instruments to different boards, sensors, or circuit nodes without mechanical relay noise or contact wear.
Battery Management Disconnect Circuit
Integrate the relay into a battery-operated device to selectively connect or disconnect low-voltage loads, helping reduce standby power consumption and support controlled power sequencing.

Conclusion

The Omron G3VM-KR Slim SOP 4-Pin MOSFET relay combines compact surface-mount packaging, optical isolation, low ON-resistance, and solid-state reliability. With support for loads up to 60 V and 1 A, it is a practical switching component for compact control systems, measurement hardware, battery-powered electronics, and industrial interface designs.