QK025R6TP

Triacs Overview

The Littelfuse QK025R6TP is a high-reliability bidirectional triac designed for robust power switching applications. It features a rated repetitive off-state voltage of 1 kV and an RMS on-state current capacity of 25 A. The device operates within a temperature range from -40°C to +125°C and utilizes a TO-220AB isolated package. Key electrical characteristics include a maximum holding current of 100 mA, a gate trigger current of 80 mA, and a gate trigger voltage of 1.3 V. It exhibits a low on-state voltage of 1.8 V and supports critical rates of rise of off-state voltage at 400 V/µs and commutation voltage at 30 V/µs.

Triacs Feature Summary

• High reliability construction suitable for demanding industrial environments
• Isolated flange mount configuration for effective thermal management
• Sensitive gate design enabling direct interfacing with control logic

Triacs Applications

• Industrial motor speed control systems
• Solid-state relays and contactors
• AC power regulation circuits

Triacs Procurement Notes

Verify the specific suffix 'R' against official Littelfuse documentation to confirm exact pinout or variant specifications, as standard datasheets may primarily list base model numbers. Ensure the ordered component matches the required isolation and mounting style for the target PCB or heatsink assembly. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm current availability and production status before finalizing procurement plans.

Triacs Selection Notes

Select this component when a 1 kV blocking voltage and 25 A continuous current handling capability are required in an isolated package. The sensitive gate parameters facilitate drive circuit simplicity. Verify that the thermal resistance of the TO-220AB package aligns with the system's heat dissipation requirements under full load conditions. Confirm compatibility with the operating temperature range of the intended application environment.

Triacs Part Context

This triac belongs to the Qxx25xx series from Littelfuse, which focuses on high-performance thyristor solutions. The series is engineered for applications requiring durable switching elements with standardized mounting formats. The QK025R6TP specifically addresses needs for high-voltage AC control in compact industrial modules.

Triacs Replacement Considerations

Consult official Littelfuse substitution guides for verified equivalents. Generic replacements must match the 1 kV voltage rating, 25 A current capacity, and TO-220AB isolated package dimensions to ensure mechanical and electrical compatibility.