APT1231SX

Overview

The APT1231SX is a phototriac coupler manufactured by Panasonic Electric Works, designed for high-voltage isolation applications. It features a single-channel configuration with a maximum repetitive peak off-state voltage (Vdrm) of 600V. The device utilizes a 4-SOP surface-mount package and provides an isolation voltage rating of 3750Vrms. It operates within a temperature range of -40°C to +100°C and supports a maximum continuous output current of 50 mA.

Feature Summary

• Provides electrical isolation between control circuits and high-voltage triac loads
• Designed for reliable operation in harsh environments with high safety standards
• Offers compact surface-mount packaging for automated assembly

Applications

• Solid-state relay driver circuits
• AC motor control systems
• Industrial automation interfaces

Procurement Notes

Verify the specific suffix 'SX' against official Panasonic documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required isolation voltages and thermal operating ranges before integration into final designs.

Selection Notes

Select this component when a compact SOP-4 form factor is required for triac triggering. Confirm that the 600V blocking capability meets the load requirements. Verify that the 3750Vrms isolation rating satisfies safety regulations for the intended application environment.

Part Context

This part belongs to the APT series of optoisolators from Panasonic Electric Works. The series includes various configurations such as DIP and SOP packages, offering both random phase and zero-crossing options for different AC switching needs.

Replacement Considerations

Cross-reference with Panasonic APT1231A or similar series members only if pinout and electrical ratings match exactly. Verify package dimensions and isolation characteristics before substitution.