BRT12-H

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Optoisolators are semiconductor devices which use electro-optical technology to provide isolation between two circuits. The output of an optoisolator usually consists of either a Triac, SCR, logic and other outputs, but the most popular type is the Triac Output Optoisolator. The BRT12-H is a specific type of Triac Output Optoisolator that is part of the Bipolart Optocoupler Series from Raychem. The BRT12-H is a standard analogue optocoupler and is ideal for use in various AC switching applications.

The BRT12-H features a 4-pin dual in-line DIL package, and internal circuitry consisting of an Infrared emitting diode and a Silicon Bidirectional TRIAC driver. The optocoupler is designed with a photo-transistor input which works in conjunction with the photo-diode to detect the presence of any incoming signal. When a forward voltage of 1.2V is detected on the anode of the photo-transistor, the optoisolator will immediately switch on the TRIAC, in order to switch on and off an external circuit such as a motor or a power supply. This allows for safe and efficient operating of various AC devices.

The main application field of the BRT12-H optocoupler is in automotive relays, heating, lighting, uninterruptible power supplies (UPSs), and power supply systems. The optocoupler can also be used in any AC power protection application that requires a TRIAC output.

The BRT12-H is designed to operate up to 500V and handle up to 5A AC current, while the switching frequency range varies from 50Hz to 100kHz. The dielectric strength between input and output of the device is rated at 15kV/ms. The optocoupler can also be used in power supplies and industrial automation, as it works in compliance with CF and EMC standards.

When it comes to safety, the BRT12-H is designed to provide isolation up to 1000Vrms, in line with industrial safety standards. This is achieved by use of a thermal shutdown device. The device also features a built-in flyback diodes for both AC and DC supplies, reducing the number of components needed for a particular application.

In conclusion, the BRT12-H Triac Output Optoisolator is an ideal device for a variety of applications, such as automotive relays, heating, lighting, uninterruptible power supplies (UPSs), and power supplies. It is capable of handling up to 5A AC current, with a switching frequency range of 50Hz to 100kHz. It offers 1000Vrms of insulation and provides protection from flyback currents. The optoisolator meets industrial safety standards, and is an extended temperature range part and is thus suitable for most industrial environments.

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