QS8004DH2RP

Triacs Overview

The Littelfuse QS8004DH2RP is a TECCOR brand Qxx04xx series bidirectional triac designed for surface-mount applications. It features an RMS on-state current of 4 A and a rated repetitive off-state voltage (VDRM) of 800 V. The device operates within a temperature range of -40°C to +125°C and utilizes a TO-252-3 package. Key electrical parameters include a maximum holding current of 30 mA, a gate trigger voltage of 2.5 V, and a gate trigger current ranging from 25 mA to 50 mA. It exhibits a typical on-state voltage of 1.6 V and a leakage current of 10 µA at VDRM.

Triacs Feature Summary

• High-voltage blocking capability suitable for AC power control circuits
• Surface-mount construction for automated assembly processes
• Robust thermal performance across extended industrial temperature ranges

Triacs Applications

• Solid-state relay output stages
• AC motor speed control systems
• Lighting dimmer circuits

Triacs Procurement Notes

Verify the specific suffix 'H2' against official Littelfuse documentation to confirm pinout orientation and marking variations relative to standard variants. Ensure the ordering quantity aligns with manufacturer reel specifications. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement orders.

Triacs Selection Notes

Select this component when an 800 V rating is required for high-line voltage AC switching. The 4 A RMS current capacity supports moderate load applications. Verify that the TO-252-3 footprint matches the PCB layout constraints. Ensure the gate drive circuit can supply the specified 25 mA to 50 mA trigger current reliably under all operating conditions.

Triacs Part Context

This part belongs to the Littelfuse TECCOR Qxx04xx family of general-purpose triacs. The series provides standardized solutions for AC power regulation. The QS8004DH2RP variant specifically addresses surface-mount requirements while maintaining the electrical characteristics associated with the 800 V, 4 A class within the broader product portfolio.

Triacs Replacement Considerations

Consult Littelfuse substitution guides for equivalent TECCOR triacs with matching voltage and current ratings. Verify pin compatibility for direct replacement in existing designs.