PC3SD21NTZDH

Triac, SCR Output Optoisolators Overview

The PC3SD21NTZDH is a phototriac coupler manufactured by SHARP/Socle Technology. It features an internal zero-crossing circuit for low electromagnetic interference switching. The device provides electrical isolation with a rated insulation voltage of 5000Vrms. It operates in a 6-DIP package. Key electrical parameters include a maximum RMS on-state current of 100 mA, a maximum DC forward current of unspecified value in source, and a maximum LED trigger current of 3 mA. The hold current is specified at 3.5 mA.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for noise reduction
• High-voltage optical isolation capability
• Triac output configuration for AC load control

Triac, SCR Output Optoisolators Applications

• Solid state relay interfaces
• AC motor speed control circuits
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'DH' against official SHARP/Socle Technology documentation to confirm pinout and packaging details. Confirm RoHS compliance status as sources vary. Ensure the component matches the exact part number for zero-crossing functionality. Check for discontinued status indicators in distributor catalogs before finalizing procurement plans.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to minimize EMI in AC power control applications. The 100 mA RMS rating suits low-power triac triggering loads. Verify that the 5000Vrms isolation meets system safety requirements. Compare against similar Sharp PC series optocouplers if different trigger currents or packages are needed.

Triac, SCR Output Optoisolators Part Context

This part belongs to the Sharp PC3SD series of optoisolators. These devices are designed for interfacing microcontrollers with AC mains-powered loads. The series typically includes variants with and without zero-crossing circuits. The PC3SD21 variant specifically integrates the zero-crossing detector to ensure triac firing occurs near the AC voltage zero point.

Triac, SCR Output Optoisolators Replacement Considerations

The PC3SF21YVZAF is a related model from the same manufacturer family. Both parts feature zero-crossing circuits. Verify compatibility regarding package dimensions and electrical ratings before substitution. Note that availability status may differ between these specific part numbers.