Q4025RH5TP

Triacs Overview

The Littelfuse Q4025RH5TP is a bidirectional triac designed for AC power control applications. It features a 400V repetitive peak reverse voltage rating and supports an on-state RMS current of 25A. The device utilizes a sensitive gate architecture with a maximum gate trigger current of 50mA, enabling direct interfacing with microprocessors or logic circuits. Packaged in a TO-220AB insulated tab configuration, it provides electrical isolation between the terminal and the mounting hardware. This component is engineered for robust performance in high-reliability switching environments.

Triacs Feature Summary

• Sensitive gate structure allows direct drive from low-power logic interfaces
• Insulated tab package design ensures safe mounting to heat sinks without external insulators
• High surge current capability supports demanding load switching requirements

Triacs Applications

• Solid-state relays for industrial automation
• AC motor speed control systems
• Lighting dimmer circuits

Triacs Procurement Notes

Verify the specific suffix H5TP against the manufacturer's official datasheet to confirm the exact pinout and insulation specifications. Ensure the ordering quantity aligns with the manufacturer's standard packaging multiples. Cross-reference the date code and lot number upon receipt to verify component authenticity and traceability.

Triacs Selection Notes

Select this component when a 400V blocking voltage and 25A continuous current capacity are required. The sensitive gate characteristic is critical for designs utilizing low-current microcontroller outputs. Verify that the thermal management solution accommodates the TO-220AB package dimensions and the expected power dissipation under the specific load conditions.

Triacs Part Context

This part belongs to the Littelfuse Q-series of triacs, which are widely used in general-purpose AC power switching. The Q4025RH5TP specifically addresses applications needing reliable isolation and moderate power handling. It complements other devices in the family that offer higher voltage ratings or different packaging options for specialized thermal or electrical constraints.

Triacs Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult the manufacturer's official replacement guide or cross-reference tool for verified equivalents based on specific electrical and mechanical constraints.