ACT108-800EQP

Overview

The ACT108-800EQP is a logic-sensitive gate TRIAC manufactured by WeEn Semiconductors. It features an RMS on-state current of 0.8 A and a repetitive peak off-state voltage of 800 V. The device operates within a junction temperature range up to 125°C. Key electrical parameters include a maximum non-repetitive surge current of 13 A at 50 Hz, a maximum gate trigger voltage of 1 V, and a maximum gate trigger current of 10 mA. The holding current is specified at a maximum of 20 mA. This component is designed for surface-mount applications in the SC-73 package.

Feature Summary

• Logic-sensitive gate architecture enabling direct interface with microcontrollers or logic circuits without additional buffering components.
• High thermal stability supporting operation at junction temperatures up to 125°C for reliable performance in demanding environments.
• Compact surface-mount packaging designed to facilitate automated assembly and reduce footprint in dense circuit board layouts.

Applications

• Solid-state relay control circuits
• Lighting dimmer switches
• Motor speed control systems

Procurement Notes

Verify the specific suffix 'EQP' against the manufacturer's official datasheet to confirm exact pinout and marking variations. Ensure compliance with RoHS directives if required by the end application. Cross-reference the SC-73 package dimensions with PCB layout requirements to guarantee mechanical fit during assembly.

Selection Notes

Select this component when a low-power TRIAC with logic-level gate sensitivity is required for AC switching applications. The 800 V rating suits general-purpose mains voltage isolation, while the 0.8 A current capacity limits usage to small loads. Consider the SC-73 package constraints for thermal management and available board space compared to larger through-hole alternatives.

Part Context

This part belongs to the ACT108 series of TRIACs from WeEn Semiconductors. The series focuses on sensitive gate devices optimized for modern electronic controls. The ACT108-800EQP specifically denotes the 800 V voltage class variant within this family, sharing common characteristics with other members like the ACT108W-800EF regarding core functionality and gate drive requirements.

Replacement Considerations

Direct substitutes may include the ACT108W-800EF from the same manufacturer, provided the package compatibility is verified. Other generic 0.8 A, 800 V logic TRIACs in equivalent SMD packages can serve as functional replacements if pinouts match exactly.