PC4SD21NTZCF

Triac, SCR Output Optoisolators Overview

The PC4SD21NTZCF is a single-channel triac output optocoupler manufactured by Sharp Microelectronics. It features an integrated zero-crossing circuit for low electromagnetic interference switching. The device provides 5000 Vrms isolation voltage and supports an 800 V blocking voltage. Key electrical parameters include a maximum forward current of 50 mA, a typical forward voltage of 1.2 V, and a maximum trigger current of 5 mA. It operates within a temperature range of -30°C to 100°C and is housed in a 6-DIP package.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for noise reduction
• High isolation voltage rating of 5000 Vrms
• Triac output capable of handling 800 V blocking voltage

Triac, SCR Output Optoisolators Applications

• Solid-state relay (SSR) driver circuits
• AC motor speed control systems
• Industrial process control isolation interfaces

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix NTZCF against the manufacturer's latest datasheet to confirm pinout and packaging details. Confirm component availability status as product lifecycles may change. Ensure compliance with RoHS directives if required for the target assembly. Cross-reference ordering information with authorized distributors to avoid counterfeit components.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to minimize electrical noise in AC load applications. The 5000 Vrms isolation rating suits high-voltage industrial environments. Compare trigger current specifications against microcontroller GPIO capabilities to ensure adequate drive strength. Verify thermal management requirements for the operating temperature range.

Triac, SCR Output Optoisolators Part Context

This part belongs to the Sharp PC4SD series of phototriac optocouplers designed for AC power control. The series offers various isolation voltages and package options. The PC4SD21 variant specifically integrates zero-crossing logic, distinguishing it from non-zero-crossing counterparts like the PC4SD11. It serves as a standard interface between low-voltage digital logic and high-voltage AC loads.

Triac, SCR Output Optoisolators Replacement Considerations

Check for direct replacements within the Sharp PC4SD family. Evaluate generic triac optocouplers with similar 5000 Vrms ratings and zero-crossing features. Verify pin compatibility and electrical parameter equivalence before substitution.