Q4016RH3TP

Triacs Overview

The Littelfuse Q4016RH3TP is a bidirectional triac designed for AC power control applications. It features a rated repetitive peak off-state voltage (VDRM) of 400 V and an RMS on-state current (IT(RMS)) of 16 A. The device exhibits a maximum on-state voltage of 1.6 V and a gate trigger current (Igt) of 20 mA. It operates within a junction temperature range of -40°C to +125°C and has a maximum non-repetitive peak on-state current of 167 A at 60 Hz. The component is housed in a TO-220-2 package, providing a robust solution for high-current switching tasks.

Triacs Feature Summary

• Integrated thermal protection mechanism to prevent damage from excessive junction temperatures during overload conditions.
• Glass-passivated junctions ensure long-term parameter stability and reliability under harsh electrical environments.
• High dv/dt rating provides immunity against false triggering caused by rapid voltage transients.

Triacs Applications

• Solid-state relays requiring high current handling capabilities
• AC motor speed control circuits for industrial equipment
• Lighting dimmer systems for commercial and residential use

Triacs Procurement Notes

Verify the specific suffix 'H3TP' against the manufacturer's latest datasheet to confirm pinout configuration and internal thermal shutdown specifications. Ensure that the ordering documentation explicitly references Littelfuse as the original equipment manufacturer to avoid counterfeit components. Cross-reference the lot code with production change notifications if sourcing from secondary distributors.

Triacs Selection Notes

Select this component when a 400 V blocking voltage and 16 A continuous current capacity are required in a through-hole package. The 20 mA gate trigger current allows compatibility with standard logic-level drivers without excessive base current requirements. Consider the TO-220-2 footprint for PCB layout constraints and verify that the heat sinking strategy supports the thermal resistance limits specified in the official data sheet.

Triacs Part Context

This part belongs to the Qxx16xHx series of Triacs manufactured by Littelfuse. The series is characterized by high current ratings and integrated thermal protection features. These devices are engineered for general-purpose AC switching applications where reliability and noise immunity are critical design parameters.

Triacs Replacement Considerations

Direct replacements must match the 400 V rating, 16 A current capacity, and TO-220-2 package. Verify gate trigger characteristics and thermal protection thresholds before substitution. Consult Littelfuse application notes for equivalent part numbers within the same product family.