Q8012RH2

Triacs Overview

The Littelfuse Q8012RH2 is a high-power triac designed for industrial and commercial applications requiring robust AC switching capabilities. It features an 800V repetitive peak off-state voltage (VDRM) and can handle a maximum on-state current of 12A. The device utilizes a gate trigger characteristic of 10-10-10 mA, ensuring reliable turn-on across varying temperatures. Packaged in an isolated TO-220AB flange mount configuration, it supports operation within a junction temperature range of -40°C to +125°C. Key electrical parameters include a maximum DC gate trigger current of 10 mA, a holding current of 15 mA, and a low leakage current of 0.01 mA.

Triacs Feature Summary

• High voltage blocking capability suitable for demanding AC power control circuits
• Robust thermal management through isolated flange mount packaging
• Consistent gate sensitivity with standardized 10-10-10 mA trigger characteristics

Triacs Applications

• Industrial motor speed control systems
• Solid state relays for heavy loads
• AC power regulation in commercial equipment

Triacs Procurement Notes

Verify the specific suffix designation when ordering, as variations such as RH2TP may indicate different tape-and-reel packaging or minor mechanical distinctions compared to standard tube versions. Confirm RoHS compliance status directly with the manufacturer's latest documentation prior to integration into regulated assemblies.

Triacs Selection Notes

Select this component for applications requiring high current handling at elevated voltages. Ensure the heat sinking design accommodates the thermal resistance of the TO-220AB package under continuous load conditions. Verify that the gate drive circuitry provides sufficient current to meet the 10 mA trigger requirement reliably across the full operating temperature range.

Triacs Part Context

This part belongs to the Qxx12xHx series of triacs from Littelfuse, which are engineered for general purpose high-power switching. The series is characterized by its ability to withstand high di/dt and dv/dt stresses, making it suitable for harsh electrical environments where standard thyristors might fail prematurely due to transient events.

Triacs Replacement Considerations

Direct replacements must match the 800V VDRM, 12A IT(RMS), and TO-220AB package dimensions. Verify gate trigger current compatibility to ensure existing drive circuits remain functional without modification.