ACTT12B-800CTNJ

Overview

The ACTT12B-800CTNJ is a bidirectional triac power switch manufactured by WeEn Semiconductors, housed in a surface-mountable SOT404 (D2PAK) plastic package. It features an 800 V rated repetitive off-state voltage and conducts a continuous RMS current of 12 A. The device supports a non-repetitive peak on-state current of 120 A and operates at a maximum junction temperature of 150 °C. Key electrical parameters include a maximum gate trigger current of 35 mA across quadrants Q1, Q2, and Q3, and a high dV/dt rating of 500 V/µs.

Feature Summary

• Self-protective clamping capabilities against low and high energy transients
• Full RMS current commutation at maximum rated junction temperature without snubber assistance
• High junction operating temperature capability up to 150 °C

Applications

• Applications requiring high junction operating temperature capability
• AC power switching circuits with transient protection needs
• Industrial environments demanding robust thermal performance

Procurement Notes

Verify the specific suffix CTNJ against official manufacturer documentation to confirm packing details and marking variations. Ensure compatibility with standard D2PAK footprint requirements during PCB layout. Cross-reference the 12NC code 934068017118 for accurate ordering. Confirm RoHS compliance status through the latest datasheet revision before final procurement decisions.

Selection Notes

Select this component when designs require operation at elevated junction temperatures up to 150 °C without external snubber networks. The 12 A RMS rating suits moderate power AC control applications. Verify that the 35 mA gate trigger current aligns with the driving circuit's output capabilities. Ensure the 800 V blocking voltage exceeds the peak line voltage plus transient margins in the target application.

Part Context

This part belongs to the ACTT series of triacs from WeEn Semiconductors, designed for surface mount assembly. It shares the D2PAK form factor with other variants like the ACTT16B-800CTN but offers distinct current and thermal characteristics. The series emphasizes reliability in industrial conditions through planar passivation and transient immunity features.

Replacement Considerations

Direct substitutes within the same family include the ACTT12B-800CTJ. For higher current requirements, consider the ACTT16B-800CTN. Verify pinout compatibility and thermal resistance values when replacing with generic D2PAK triacs.