Q4016RH6

Triacs Overview

The Littelfuse Q4016RH6 is a bidirectional triac belonging to the Qxx16xHx series, designed for high-reliability power control applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (IT(RMS)) of 16 A. The device operates within a temperature range of -40 °C to +125 °C and utilizes a TO-220-2 package. Key electrical characteristics include a maximum gate trigger current (Igt) of 35 mA, a holding current (Ih) of 50 mA, and a low on-state voltage of 1.6 V. Leakage current at VDRM is specified at 5 µA.

Triacs Feature Summary

• High thermal stability with a maximum operating temperature of +125 °C
• Robust switching capability with 16 A RMS current handling
• Sensitive gate drive requirements for efficient triggering

Triacs Applications

• Industrial motor speed control systems
• Solid-state relay implementations
• Lighting dimmer circuits

Triacs Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm pinout and isolation requirements. Ensure the selected variant matches the required voltage rating and package type for the target PCB layout. Cross-reference datasheets for any recent product change notifications or environmental compliance updates prior to finalizing component selection.

Triacs Selection Notes

Select this component when a 400 V blocking voltage and 16 A continuous current are required in a standard through-hole configuration. Consider the 35 mA gate trigger current for driver compatibility. Evaluate thermal management needs given the 125 °C junction limit and 1.6 V on-state drop under load conditions.

Triacs Part Context

This part belongs to the Qxx16xHx family of Alternistor Triacs from Littelfuse. These devices are engineered for high dv/dt immunity and reliable operation in harsh electrical environments. The series offers various voltage ratings and package options to suit diverse power control needs across industrial and consumer sectors.

Triacs Replacement Considerations

Compatible substitutes include the Q4016NH4TP and Q4016RH3TP. Verify that alternative parts match the 400 V rating, 16 A current capacity, and TO-220-2 package dimensions before substitution.