PC3SD21NTZB

Triac, SCR Output Optoisolators Overview

The PC3SD21NTZB is a zero-crossing phototriac coupler manufactured by Sharp Microelectronics. It features a DIP-6 package and provides 5000 Vrms isolation voltage. The device includes an integrated zero-crossing detection circuit to minimize electromagnetic interference during switching. It supports a maximum repetitive peak off-state voltage of 600 V and a continuous output current of 100 mA. The component operates within a temperature range of -30°C to +100°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuit for low-noise AC power control
• High insulation voltage rating of 5000 Vrms for safety isolation
• DIP-6 through-hole package suitable for standard PCB mounting

Triac, SCR Output Optoisolators Applications

• Solid state relays
• AC motor speed controllers
• Lighting dimmer circuits

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'TZB' against official Sharp documentation to confirm pinout and electrical characteristics, as suffixes may indicate variations in packaging or compliance status. Confirm availability status with authorized distributors, as lead times and stock levels fluctuate. Ensure the selected variant matches the required zero-crossing functionality for the intended application.

Triac, SCR Output Optoisolators Selection Notes

Select this component when low electromagnetic interference is critical in AC switching applications due to its zero-crossing feature. Compare the 600 V blocking voltage and 100 mA load current against system requirements. Consider the DIP-6 form factor for compatibility with existing board layouts. Verify thermal management needs for the operating temperature range.

Triac, SCR Output Optoisolators Part Context

This part belongs to Sharp's PC3SD series of phototriac couplers designed for AC power control. The series offers various voltage ratings and trigger currents. The zero-crossing variant distinguishes itself from non-zero-crossing models by reducing noise generation during turn-on events, making it suitable for sensitive electronic loads.

Triac, SCR Output Optoisolators Replacement Considerations

PC3SD21NTZAF is a documented alternative within the same series offering similar zero-crossing functionality and package type.