QJ6040KH5TP

Triacs Overview

The Littelfuse QJ6040KH5TP is a high-temperature Alternistor triac rated for 600 V repetitive off-state voltage and 40 A RMS on-state current. It utilizes an isolated TO-218AC package for thermal management. Key electrical parameters include a maximum holding current of 75 mA, a peak on-state voltage of 1.6 V, and a maximum operating temperature of 150°C. The device supports through-hole mounting and is designed for robust industrial applications requiring reliable switching performance under elevated thermal conditions.

Triacs Feature Summary

• High-temperature operation capability up to 150°C
• Electrically isolated TO-218AC package design
• Snubberless circuit compatibility for simplified drive requirements

Triacs Applications

• Industrial motor control systems
• Solid-state relay modules
• High-power AC switching circuits

Triacs Procurement Notes

Verify the specific suffix KH5TP against official Littelfuse documentation to confirm isolation characteristics and pinout configuration. Ensure that the selected component matches the required thermal dissipation profile for the intended application environment. Cross-reference datasheet revisions to guarantee compliance with current manufacturing standards before finalizing procurement orders.

Triacs Selection Notes

Select this component when high-voltage isolation and elevated temperature tolerance are critical. The 40 A rating suits medium-to-high power loads. Compare the 1.6 V on-state voltage against system efficiency targets. Confirm that the TO-218AC footprint aligns with existing PCB layouts and heatsinking infrastructure for optimal thermal performance.

Triacs Part Context

This part belongs to the Littelfuse QJ series of high-temperature Alternistors. These devices are engineered for demanding environments where standard triacs may fail. The series emphasizes reliability in industrial settings, offering improved ruggedness compared to conventional thyristor technologies while maintaining compact form factors suitable for space-constrained designs.

Triacs Replacement Considerations

Direct substitutes within the same family include QJ6040JH7TP, though package and electrical differences exist. Verify compatibility with QJ6040RH5TP if non-isolated options are acceptable. Always consult manufacturer cross-reference guides for validated replacements.