G3VM-21GR1(TR) Relays

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Solid State Relays are switching devices designed to control electrical circuits as well as isolate circuitry from an electrical power source. It\'s a combination of physical components with an integral switching device controlling a circuit. G3VM-21GR1(TR) is an example of a solid state relay that is designed to switch electrical circuits with a trigger input.

This device is specifically designed for low-signal control applications such as automotive, industrial, and consumer electronics. It uses low-level switching, allowing for precise on/off control. This makes it suitable for numerous applications such as motor control, power supply control, power switching, lamp control, heater control, and more. Additionally, its low-signal control feature minimizes noise interference in sensitive electronic components, making it ideal for instruments and electronics.

G3VM-21GR1(TR) is a single-channel, normally open, output type solid state relay. It has a trigger voltage of 6 to 20V DC and a control current of 4 mA minimum. The rated load voltage range is 5 to 24 V DC while the load current is 0.5A max. Coming with a 4-pin terminals, it has an operating temperature range of -40°C to +85°C and an insulation resistance of 100MΩ min at 500 VDC.

The working principle of a G3VM-21GR1(TR) is based on DC input voltage control. This allows it to switch on or off when connected to a trigger signal. The relay’s switching mechanism contains a pair of power semiconductors (MOSFETs) which are electrically insulated from each other. When the trigger signal switches from low to high, the MOSFETs are activated and the circuit is completed. The relay then turns on its internal solid state switch. Once the load is on, an LED lights up to display its output status. When the control signal is active, the relay maintains the load in the on or off state until the input signal switches back to low voltage.

The G3VM-21GR1(TR) is a reliable and versatile device for controlling a variety of low-signal applications. It has excellent protection features such as overvoltage protection, reverse polarity protection, and transient suppression protection. Additionally, it has an extremely low on-state resistance and a low switch time for faster switching action. Finally, it is UL recognized, CE/VDE marked, and FCC approved making it ideal for application in safety-critical equipment.

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