PC3SD21YXPDF

Triac, SCR Output Optoisolators Overview

The PC3SD21YXPDF is a single-channel phototriac output optocoupler manufactured by SHARP/Socle Technology. It features a 6-SMD gull wing package and integrates a zero-crossing detection circuit for low electromagnetic interference switching. The device provides 5000 Vrms isolation voltage between input and output. Key electrical parameters include a forward current of 20 mA, a forward voltage of 1.2 V, and an off-state repetitive peak voltage (VDRM) of 600 V. The RMS on-state current is rated at 100 mA with a maximum gate trigger current of 3 mA. Operating temperatures range from -30°C to +100°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a zero-crossing detection circuit to minimize switching noise and electromagnetic interference during AC load control.
• Provides high electrical isolation capability with a rated insulation voltage of 5000 Vrms for safe signal transfer.
• Utilizes a compact SMD-6 gull wing surface mount package suitable for automated assembly processes.

Triac, SCR Output Optoisolators Applications

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

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix 'PDF' against the manufacturer's official datasheet to confirm pinout configuration and tape/reel specifications. Ensure compatibility with existing PCB footprints and reflow soldering profiles. Cross-reference part numbers with Sharp Microelectronics or Socle Technology documentation to avoid substitution errors due to minor packaging variations.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to reduce electrical noise in AC control systems. The 600 V blocking voltage suits standard mains voltage applications. Verify that the 100 mA RMS current rating meets the load requirements. Consider the 5000 Vrms isolation level for safety compliance in high-voltage interfaces.

Triac, SCR Output Optoisolators Part Context

This device belongs to the PC3SD series of phototriac optocouplers designed for AC power control. The series emphasizes low EMI performance through integrated zero-crossing technology. It serves as a bridge between low-voltage logic circuits and high-voltage AC loads, ensuring galvanic isolation while maintaining precise timing characteristics for reliable switching operations.

Triac, SCR Output Optoisolators Replacement Considerations

Check for direct substitutes within the PC3SD family such as PC3SD21NTZDH for DIP packages. Verify equivalent isolation ratings and current capabilities before substituting with other manufacturers' zero-crossing triac optocouplers.

Triac, SCR Output Optoisolators FAQ

What is the purpose of the zero-crossing circuit in this optocoupler?

The zero-crossing circuit ensures that the triac turns on only when the AC voltage crosses zero, significantly reducing electromagnetic interference and inrush currents.

What is the maximum operating temperature for the PC3SD21YXPDF?

The maximum operating temperature is +100°C according to the manufacturer specifications.