QK008R5TP

Triacs Overview

The QK008R5TP is a Triac manufactured by Littelfuse Inc., designed for high-reliability power control applications. It features an 800V rated repetitive off-state voltage and supports an 8A RMS on-state current. The device operates within a temperature range of -40°C to +125°C and utilizes a TO-220AB flange mount package with three terminals. Key electrical parameters include a maximum holding current of 50 mA, a gate trigger voltage of 1.3 V, and a gate trigger current of 50 mA. It exhibits a critical rate of rise of off-state voltage of 100 V/us and a maximum leakage current of 2 mA.

Triacs Feature Summary

• High reliability construction suitable for demanding industrial environments
• Flange mount configuration for efficient thermal management
• Single-phase AC power control capability

Triacs Applications

• Industrial motor speed control systems
• Solid state relay modules
• General purpose AC power switching circuits

Triacs Procurement Notes

Verify the exact part number against official Littelfuse documentation to ensure compatibility with specific design requirements. Confirm that the TO-220AB package and leaded termination meet the target assembly standards. Cross-reference datasheet specifications for thermal resistance and mounting torque to validate integration into the final product design.

Triacs Selection Notes

Select this component when an 800V blocking voltage and 8A continuous current rating are required in a through-hole flange mount package. Ensure the application circuit provides sufficient gate drive current exceeding 50 mA for reliable triggering. Verify that the operating environment remains within the specified -40°C to +125°C temperature range for optimal performance.

Triacs Part Context

This Triac belongs to the Littelfuse family of thyristor devices used for AC power regulation. It shares similar packaging and basic electrical characteristics with other 8A/800V variants in the manufacturer's portfolio, such as the Q8008R5TP. These components are standard solutions for medium-power industrial applications requiring robust semiconductor switching.

Triacs Replacement Considerations

The Q8008R5TP is a documented related component from Littelfuse with identical 800V and 8A ratings. Verify pinout compatibility and specific gate trigger tolerances before substitution. Other manufacturers' equivalents must be evaluated for matching voltage, current, and package dimensions.