PC3SD21YXPLH

Triac, SCR Output Optoisolators Overview

The PC3SD21YXPLH is a single-channel Triac and SCR output optocoupler manufactured by Sharp Microelectronics. It features a PhotoTriac output with an integrated zero-crossing circuit, designed for AC load switching applications. The device utilizes a SMD-6 Gull Wing surface-mount package. Key electrical specifications include a maximum repetitive peak off-state voltage (VDRM) of 600 V and an RMS on-state current (It RMS) of 100 mA. It operates with a forward current (If) of 20 mA and provides an isolation voltage of 5000 Vrms. The unit supports a wide operating temperature range from -30°C to +100°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for reduced electromagnetic interference during AC switching
• High insulation voltage capability ensuring safe galvanic isolation between input and output circuits
• Surface-mount construction optimized for automated assembly processes

Triac, SCR Output Optoisolators Applications

• Solid state relays for AC load control
• Motor speed control circuits
• Lighting dimmer switches

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'XPLH' against official Sharp Microelectronics documentation to confirm pinout and packaging details, as variations exist within the PC3SD21 series. Confirm RoHS compliance status through the manufacturer's latest environmental reports. Ensure design compatibility with the specified 600 V blocking voltage and 100 mA current ratings for the target application.

Triac, SCR Output Optoisolators Selection Notes

Select this component when high-voltage isolation and low-noise AC switching are required. The integrated zero-crossing feature distinguishes it from standard triac optocouplers, making it suitable for sensitive electronic loads. Compare the 100 mA It RMS rating against load requirements to ensure adequate margin. Consider the SMD-6 package constraints for PCB layout and thermal management.

Triac, SCR Output Optoisolators Part Context

This part belongs to Sharp Microelectronics' PC3SD21 family of Triac and SCR output optocouplers. The family is characterized by high isolation voltages and compact surface-mount packages. The PC3SD21 series is widely used in industrial and consumer electronics for isolating control signals from high-voltage AC mains. The specific XPLH suffix denotes the tape-and-reel packaging format.

Triac, SCR Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers for the PC3SD21YXPLH were not identified in the provided source material. Engineers should consult Sharp Microelectronics for direct replacements or evaluate equivalent devices from other manufacturers based on matching electrical parameters and package dimensions.