APT1212WA

Overview

The APT1212WA is a Triac and SCR output optoisolator manufactured by Panasonic Electric Works. It features a 6-DIP through-hole package with gull-wing leads. The device provides 5000Vrms isolation voltage and supports a maximum forward current of 50 mA. It includes an integrated zero-crossing circuit for reduced noise interference. Key electrical parameters include a peak repetitive off-state voltage of 600 V, a holding current of 3.5 mA, and a maximum turn-on time of 100 µs. The component operates within a temperature range of -40°C to 100°C.

Feature Summary

• Integrated zero-crossing detection circuitry for minimized electromagnetic interference during switching events
• High isolation capability with 5000Vrms dielectric strength between input and output sections
• Robust static dv/dt rating ensuring reliable operation in high-noise industrial environments

Applications

• Solid-state relay (SSR) driver circuits
• Industrial motor control systems requiring phase-angle firing
• AC power switching applications with noise immunity requirements

Procurement Notes

Verify the specific suffix designation when ordering, as variations such as WAY indicate surface mount packaging while WA denotes through-hole DIP configuration. Confirm RoHS compliance status and safety certifications like UL and VDE are present on the datasheet for the exact revision. Ensure the selected variant matches the required mounting style and lead form factor for the target PCB layout.

Selection Notes

Select this component for AC load control applications where zero-crossing switching is critical to reduce electrical noise. Compare the 600V blocking voltage against the peak line voltage to ensure adequate margin. Evaluate the 100µs turn-on time against system timing requirements. Consider the thermal performance within the specified operating range and verify that the 50mA LED drive current aligns with the available control logic output capabilities.

Part Context

This part belongs to the APT series of phototriac couplers from Panasonic Electric Works. It is designed for general-purpose AC power switching. The device integrates an infrared emitting diode with a triac output silicon chip. It serves as a bridge between low-voltage control circuits and high-voltage AC loads, providing galvanic isolation.

Replacement Considerations

The APT1212WAY is a related variant offering surface mount packaging instead of through-hole DIP. Verify pinout compatibility and package dimensions before substitution. Other family members may share similar electrical characteristics but differ in isolation ratings or switching speeds.