Q4016RH4

Triacs Overview

The Q4016RH4TP is a bidirectional triac manufactured by Littelfuse, 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 operates within a junction temperature range of -40°C to +125°C. Key electrical parameters include a maximum holding current of 35 mA, a gate trigger current of 35 mA, and a typical on-state voltage of 1.6 V at rated current. The component utilizes a TO-220-2 package with a tube factory packaging configuration.

Triacs Feature Summary

• Bidirectional conduction capability for alternating current switching
• High thermal stability supporting operation up to 125°C junction temperature
• Robust 16 A RMS current handling in a standard through-hole package

Triacs Applications

• AC motor speed control circuits
• Solid-state relay implementations
• Lighting dimmer switches

Triacs Procurement Notes

Verify the specific suffix 'TP' against the requested model 'Q4016RH4', as datasheets typically list 'Q4016RH4TP'. Confirm RoHS compliance status via the manufacturer's official documentation before integration. Ensure the TO-220-2 package dimensions match the PCB footprint requirements. Validate that the 400V rating meets the circuit's peak voltage demands.

Triacs Selection Notes

Select this component when a 400V blocking voltage and 16A continuous current are required in a cost-effective TO-220-2 form factor. Compare the 35mA gate trigger sensitivity against the driving circuit's output capabilities. Consider the 1.6V on-state voltage drop for thermal management calculations in high-current scenarios.

Triacs Part Context

This part belongs to the Qxx16xHx series of triacs from Littelfuse. The series is characterized by high current ratings and standardized packaging for industrial power control. The Q4016RH4TP variant specifically denotes the 400V/16A configuration within this family.

Triacs Replacement Considerations

Cross-reference with other 400V 16A TO-220-2 triacs from manufacturers like STMicroelectronics or ON Semiconductor. Verify pinout compatibility and ensure equivalent gate trigger characteristics to maintain circuit performance without redesign.