QJ4016LH3TP

Triacs Overview

The Littelfuse QJ4016LH3TP is a high-temperature Alternistor TRIAC rated for 400V repetitive off-state voltage and 16A RMS on-state current. It features a gate trigger current of 35mA and a low on-state voltage of 1.3V. The device is housed in an isolated TO-220AB package, providing electrical isolation between the terminal and the mounting base. It supports a peak non-repetitive surge current of 167A and operates with a maximum junction temperature of 150°C.

Triacs Feature Summary

• High-temperature operation capability up to 150°C junction temperature
• Integrated electrical isolation between the case and internal circuitry
• Snubberless design suitable for direct capacitive load triggering

Triacs Applications

• Industrial motor control systems
• Solid-state relay modules
• High-temperature heating element controllers

Triacs Procurement Notes

Verify the specific datasheet version for the QJ4016LH3TP to confirm RoHS compliance status and REACH SVHC declarations prior to integration. Ensure that the procurement source provides official Littelfuse documentation to validate the isolated package specifications and thermal characteristics against project requirements.

Triacs Selection Notes

Select this component when electrical isolation from the heatsink is required within a TO-220 form factor. The 1.3V on-state voltage offers efficiency benefits compared to standard TRIACs. Verify that the application environment does not exceed the 150°C maximum junction temperature limit during peak load conditions.

Triacs Part Context

This part belongs to the QJxx16xHx series of high-temperature Alternistor TRIACs. It shares the 16A current rating with other variants but distinguishes itself through the isolated TO-220AB package construction. This isolation feature simplifies thermal management by allowing direct mounting to grounded metal surfaces without additional insulators.

Triacs Replacement Considerations

The Q4016LH3TP serves as a non-isolated alternative within the same series. Substitution requires verification of isolation requirements, as the Q4016LH3TP lacks the insulated tab found in the QJ variant.