QJ8040K3TP

Triacs Overview

The QJ8040K3TP is a high-temperature Alternistor triac from Littelfuse, rated for 800V peak repetitive off-state voltage and 40A RMS on-state current. It utilizes a TO-218AC isolated package suitable for through-hole mounting. The device supports junction temperatures up to 150°C and features a maximum gate trigger current of 80mA with a peak non-repetitive surge current capability of 420A at 50Hz.

Triacs Feature Summary

• High-temperature operation capability up to 150°C junction temperature
• Designed as a bidirectional solid-state switch for AC applications
• Isolated TO-218AC package construction

Triacs Applications

• AC switching circuits
• Phase control applications

Triacs Procurement Notes

Verify the specific suffix K3TP against datasheet requirements to ensure correct packaging and variant alignment. Confirm RoHS3 compliance status and lead time availability directly with authorized distributors before finalizing procurement plans.

Triacs Selection Notes

Select this component for designs requiring robust thermal performance and high current handling in AC environments. Ensure the circuit layout accommodates the TO-218AC form factor and that the drive signal meets the specified gate trigger parameters for reliable switching.

Triacs Part Context

This part belongs to the QJxx40xx series of high-temperature triacs. It serves as a specialized power control solution within Littelfuse's discrete semiconductor portfolio, targeting industrial and consumer applications demanding durability under elevated thermal conditions.

Triacs Replacement Considerations

Consult official Littelfuse documentation for qualified substitute part numbers within the same series or equivalent specifications. Verify pinout compatibility and electrical ratings before implementing any alternative components.