Q4016LH6TP

Triacs Overview

The Littelfuse Q4016LH6TP is an Alternistor TRIAC designed for high-reliability AC power control applications. It features a 400V repetitive peak off-state voltage and a 16A RMS on-state current rating. The device utilizes a TO-220AB isolated package to provide electrical isolation between the terminal and the mounting base. Key electrical characteristics include a maximum gate trigger current of 80mA and a typical on-state voltage of 1.6V at rated current. The component operates within a junction temperature range of -40°C to +125°C and complies with RoHS standards.

Triacs Feature Summary

• Alternistor technology provides enhanced ruggedness and reliability compared to standard TRIACs
• Integrated isolation in the TO-220AB package allows direct mounting to heat sinks without additional insulators
• High surge current capability supports demanding switching loads

Triacs Applications

• Solid state relays
• Industrial motor controls
• Lighting dimmers

Triacs Procurement Notes

Verify the specific suffix 'TP' against the manufacturer's official datasheet to confirm the presence of tin-lead or lead-free plating and exact packaging configuration. Ensure the isolated variant matches the thermal management requirements of the target design, as non-isolated versions exist within the same series.

Triacs Selection Notes

Select this component when electrical isolation from the heatsink is required to simplify assembly and reduce part count. Compare the 400V voltage rating against system line voltages to ensure adequate safety margins. Verify that the 16A RMS current rating accommodates both steady-state load currents and inrush conditions without exceeding thermal limits.

Triacs Part Context

This part belongs to the Qxx16xHx series of Alternistor TRIACs manufactured by Littelfuse. The series is characterized by robust construction suitable for industrial environments. Other variants in the family may differ in voltage ratings, such as 600V options, or packaging types, including non-isolated configurations.

Triacs Replacement Considerations

Direct substitutes include other 400V, 16A Alternistor TRIACs in isolated TO-220 packages from Littelfuse or Teccor Electronics. Verify pinout compatibility and thermal resistance specifications before substitution.