BRT12-H

Overview

The BRT12-H is a phototriac output optocoupler manufactured by Vishay Semiconductor Opto Division. It features a gallium arsenide infrared LED coupled to a triac detector, providing electrical isolation between input and output circuits. The device is housed in a 6-DIP package and offers an isolation voltage of 5300Vrms. It is designed for non-zero crossing switching applications, allowing for immediate response to control signals without waiting for the AC line zero-crossing point.

Feature Summary

• Non-zero crossing operation for immediate load control
• High isolation voltage capability for safety compliance
• Integrated phototriac detector for direct AC load driving

Applications

• Solid-state relays
• AC motor speed control
• Lighting dimmers

Procurement Notes

Verify the specific suffix (e.g., -X007T) against the datasheet to confirm pinout and packaging variations. Ensure the selected variant matches the required isolation voltage and peak forward current specifications for the target application circuit design.

Selection Notes

Select this component when non-zero crossing behavior is required for fast response times. Verify that the gate trigger current requirements align with the driving microcontroller or logic interface capabilities to ensure reliable triac activation under all operating conditions.

Part Context

This part belongs to the BRT12 series of Vishay's phototriac optocouplers. It is distinct from zero-crossing variants like the BTA12 series, offering different switching timing characteristics suitable for phase-angle control applications rather than noise-reduction focused switching.

Replacement Considerations

Check for equivalent parts such as the MOC3021 if external triacs are used, or other Vishay non-zero-crossing models within the BRT12 family. Confirm package compatibility and thermal dissipation requirements before substituting.