MOC3021FVM

The MOC3021FVM is a family of standard optoisolators, also known as triac and SCR (silicon controlled rectifier) output optocouplers, that are used for a variety of applications from basic input-output isolation to advanced telecommunications and data communications applications.

The MOC3021FVM optoisolator is designed around a GaAs infrared emitter and a zero voltage-turn-on optically coupled silicon bilateral switch. The optoisolator has an SCR or triac output, with a high insulation resistance between input and output terminals, and a trigger current of up to 1mA.

The MOC3021FVM family is ideal for AC switching and high-speed digital applications and provides a high level of electrical isolation between the input and output, which eliminates the risk of system failure due to noise and transients. The optoisolator also provides a high level of logic circuit reliability and isolation for many types of solid-state electrical control systems.

An SCR or triac output optoisolator, such as the MOC3021FVM, is ideally suited for AC switching applications because the switching and control circuitry can be completely isolated from the AC line. This enables more reliable operation of the control circuitry, as the AC line voltage cannot cause a problem. Additionally, the high-speed operation of the MOC3021FVM makes it ideal for applications that require fast response times for input logic signals.

The working principle of an MOC3021FVM optoisolator involves an integrated GaAs infrared emitting diode, which emits a modulated infrared beam when triggered. This infrared beam is then picked up at the other side by the optically coupled silicon bilateral switch, which triggers a SCR or triac for an AC load.

The optoisolator can be used in a variety of applications, including protection of circuits, regulation of power supplies, and motor control. It can also be used to control relays, switches, and solenoids, providing reliable electrical isolation between the control circuitry and the load. Additionally, this optocoupler can be used to isolate a DC motor from a microcontroller, allowing precise motor speed control without the risk of a failure due to current surges or reset issues.

The MOC3021FVM optoisolator family offers a wide voltage range of 6-600VDC, meaning they are perfect for a variety of applications. The MOC3021FVM optoisolator is also built to be reliable and stable, with a temperature range of -40°C to +85°C and a creepage of 11mm. Additionally, the MOC3021FVM optoisolator family is very cost effective and available in a variety of packages, making them ideal for a variety of applications from basic input-output isolation to advanced telecommunications and data communications.