QJ4016RH4TP

Triacs Overview

The Littelfuse QJ4016RH4TP is a bidirectional triac designed for AC power control applications. It features a 400V repetitive peak off-state voltage and an RMS on-state current rating of 16A. The device utilizes a TO-220-2 package with an electrically isolated tab, providing 2500V rms isolation between the leads and the mounting surface. Key electrical parameters include a maximum holding current of 35mA and a gate trigger current range of 35mA to 35mA. The on-state voltage is specified at 1.6V, while the off-state leakage current is limited to 5µA. These characteristics support reliable switching in phase control circuits.

Triacs Feature Summary

• Integrated thermal isolation within the TO-220-2 package eliminates the need for external insulators.
• Glass-passivated junctions ensure long-term parameter stability and device reliability.
• Bidirectional switching capability allows control for either polarity of main terminal voltage.

Triacs Applications

• AC speed controls
• Temperature modulation controls
• Lighting controls requiring noise immunity

Triacs Procurement Notes

Verify the exact part number against official Littelfuse documentation, as standard series listings typically reference Q4016RH4TP. Confirm RoHS compliance status and specific packaging quantities directly with the manufacturer or authorized distributors. Ensure the component meets all relevant safety certifications required for the intended end-use application before finalizing procurement.

Triacs Selection Notes

Select this component when a 16A current capacity and 400V blocking voltage are required for AC switching. The TO-220-2 package is suitable for applications needing robust heat dissipation and electrical isolation from the heatsink. Verify that the gate drive circuitry can supply the necessary trigger current within the specified range for reliable turn-on under varying load conditions.

Triacs Part Context

This device belongs to the Qxx16xHx series of Triacs manufactured by Littelfuse. The series is characterized by high current ratings and integrated isolation features. These components are engineered for general-purpose AC power control, offering a balance of performance and ease of integration into industrial and consumer electronic systems.

Triacs Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Littelfuse technical support for verified cross-reference data or equivalent specifications from other manufacturers.