ACTT4X-800E,127

Overview

The ACTT4X-800E,127 is a bidirectional thyristor (Triac) manufactured by WeEn Semiconductors. It features an RMS on-state current of 4 A and a rated repetitive off-state voltage of 800 V. The device has a non-repetitive on-state peak current of 35 A and an on-state voltage of 1.6 V. Gate trigger parameters include a maximum gate trigger voltage of 1.5 V and a maximum gate trigger current of 10 mA. The holding current maximum is 25 mA. It operates within a temperature range from -40°C to +125°C. The component utilizes a TO-220F-3 through-hole package.

Feature Summary

• Logic-level sensitive gate design for low power triggering applications
• High thermal stability with a maximum operating junction temperature of 125°C
• Robust construction supporting high surge currents up to 35 A

Applications

• AC motor speed control circuits
• Solid state relay switching modules
• General purpose AC power regulation systems

Procurement Notes

Verify the specific suffix

Selection Notes

Select this component when a 4 A RMS current rating and 800 V blocking voltage are required in a through-hole configuration. Ensure the driving circuit can supply at least 10 mA gate current. Compare against the BT234-800E if a 4 A logic level Triac in a TO-220AB package is acceptable, noting potential pinout or thermal pad differences between TO-220F and TO-220AB styles.

Part Context

This part belongs to the ACTT series of Triacs from WeEn Semiconductors, designed for general AC switching. It shares the 800 V voltage class with other variants like the ACTT2X-800E and ACTT6B-800E but offers a higher current capacity than the 2 A version while using a similar TO-220F package form factor.

Replacement Considerations

The BT234-800E is a confirmed substitute offering identical 4 A RMS and 800 V ratings. Verify mechanical compatibility as the BT234-800E typically uses a TO-220AB package rather than the TO-220F flange mount style.