Q4016RH3

Triacs Overview

The Littelfuse Q4016RH3TP is a bidirectional triac rated for 400V repetitive peak off-state voltage and 16A RMS on-state current. It features a gate trigger current of 20mA and a holding current of 20mA, with an on-state voltage of 1.6V at 25°C. The device exhibits a maximum off-state leakage current of 5µA. It is housed in a TO-220-2 package and operates within a junction temperature range of -40°C to +125°C. This component belongs to the Qxx16xHx series designed for general-purpose AC power control applications.

Triacs Feature Summary

• High thermal stability with a wide operating temperature range from -40°C to +125°C
• Low on-state voltage drop for improved efficiency in power switching
• Robust construction suitable for high-reliability AC load control

Triacs Applications

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

Triacs Procurement Notes

Verify the exact suffix against the manufacturer's datasheet, as 'Q4016RH3' may refer to the base part number while 'Q4016RH3TP' denotes the specific tube-packaged variant. Confirm RoHS compliance status and REACH SVHC declarations directly from the official Littelfuse documentation before procurement. Ensure the ordering quantity aligns with the factory packaging unit of 1000 units per tube.

Triacs Selection Notes

Select this triac when a 400V rating and 16A continuous current capacity are required for low-voltage AC applications. The TO-220-2 package facilitates heatsinking for higher power dissipation scenarios. Compare gate sensitivity requirements; this device requires 20mA for triggering, which differs from other variants in the same family that may require higher gate currents.

Triacs Part Context

This component is part of the Littelfuse Qxx16xHx series of triacs. The series offers various voltage ratings and package options. The RH3 designation typically indicates specific gate characteristics and packaging. It serves as a solid-state alternative to mechanical relays in AC switching applications, providing silent operation and longer lifespan due to the absence of moving parts.

Triacs Replacement Considerations

Direct replacements must match the 400V/16A rating and TO-220-2 package. Verify gate trigger current compatibility. Other Littelfuse triacs in the same series with different suffixes may offer different gate sensitivities or voltage ratings.