ACTT4S-800E,118

Overview

The ACTT4S-800E,118 is a bidirectional triac manufactured by WeEn Semiconductors. It belongs to the ACTT4 series and features a standard gate configuration. The device is housed in a DPAK surface-mount package (TO-252-3). Key electrical parameters include an RMS on-state current of 4 A and a non-repetitive peak on-state current of 27 A. It supports a rated repetitive peak off-state voltage of 800 V. The component operates within a junction temperature range up to +125°C.

Feature Summary

• Surface-mount construction for automated PCB assembly
• Standard gate sensitivity for general control applications
• High voltage blocking capability for mains switching

Applications

• Lighting dimmers
• Motor speed control
• Heating element regulation

Procurement Notes

Verify the specific suffix '118' against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure the ordering information matches the required tape and reel specifications for the DPAK package before finalizing procurement orders.

Selection Notes

Select this component when a 4 A RMS current rating and 800 V blocking voltage are required in a compact SMD footprint. Compare the 27 A surge current capability against circuit inrush requirements. Verify that the standard gate drive characteristics align with the available control logic levels.

Part Context

This part is part of the ACTT4 family from WeEn Semiconductors, designed for general-purpose AC power switching. It shares the same die and electrical performance as through-hole equivalents but utilizes a DPAK package for space-constrained designs. The product line focuses on cost-effective solutions for consumer electronics and industrial controls.

Replacement Considerations

Direct pin-compatible replacements may include other 4 A, 800 V triacs in TO-252 packages from manufacturers like STMicroelectronics or Littelfuse. Verify gate trigger current and holding current specifications to ensure compatibility with existing drive circuits.