ACTT12X-800CTNQ

Overview

The ACTT12X-800CTNQ is a snubberless triac manufactured by WeEn Semiconductors, designed for AC thyristor power switching applications. It features an RMS on-state current of 12 A and a rated repetitive peak off-state voltage of 800 V. The device supports a non-repetitive peak on-state current of 105 A with a maximum on-state voltage of 1.4 V. Gate triggering requirements include a maximum gate trigger voltage of 1 V and a maximum gate trigger current of 35 mA. It operates within a junction temperature range up to +150 °C and is housed in a D2PAK (SOT404) surface-mount package.

Feature Summary

• Snubberless design enabling full RMS current commutation at maximum junction temperature without external snubber circuits
• Integrated clamping structure providing safe high over-voltage withstand capability against transients
• High junction operating temperature capability reaching +150 °C for enhanced thermal performance
• Guaranteed immunity to gate noise through high minimum gate trigger current specifications

Applications

• AC power switching circuits requiring robust transient protection
• Motor speed control systems operating under high thermal stress
• Solid-state relay designs eliminating the need for external snubber networks

Procurement Notes

Verify the specific suffix CTNQ against official WeSem datasheets to confirm pinout and packaging variations. Ensure compatibility with D2PAK (SOT404) footprints during PCB layout. Cross-reference RoHS compliance status directly from the manufacturer's latest documentation before procurement.

Selection Notes

Select this component when designing circuits that demand operation at elevated junction temperatures up to 150 °C. The 12 A RMS rating suits moderate power loads where snubberless operation simplifies the bill of materials. Verify that the 800 V blocking voltage aligns with the system's peak line voltages and transient requirements.

Part Context

This part belongs to the ACTT series of snubberless triacs from WeEn Semiconductors. It shares functional similarities with other devices in the series but is distinguished by its 12 A current rating and D2PAK surface-mount form factor. The series is engineered for applications prioritizing thermal resilience and simplified circuit topology.

Replacement Considerations

Direct replacements must match the 12 A RMS current, 800 V voltage rating, and D2PAK package. Verify that alternative snubberless triacs offer comparable junction temperature limits and gate trigger characteristics to ensure circuit stability.