QK006VH4

Triacs Overview

The QK006VH4 is a bidirectional triac manufactured by Littelfuse, designed for AC power control applications. It features a maximum repetitive peak off-state voltage of 1000 V and an on-state current rating of 6 A. The device operates with gate trigger currents ranging from 35 mA to 35 mA depending on the quadrant. Key electrical parameters include a holding current of 20 uA in the off state and an on-state voltage drop of 1.6 V. The component is housed in a TO-220-2 package and complies with RoHS standards.

Triacs Feature Summary

• Bidirectional alternistor design optimized for switching highly inductive loads
• Glass-passivated junctions ensure long-term reliability and parameter stability
• Enhanced dv/dt characteristics due to electrically separate SCR structures

Triacs Applications

• AC motor speed control
• Solid-state relays
• Lighting dimmers

Triacs Procurement Notes

Verify the exact part number suffix against official Littelfuse documentation to confirm pinout and thermal specifications. Ensure the selected variant matches the required voltage and current ratings for the specific application circuit. Cross-reference datasheets for any updates regarding lead-free compliance or packaging changes.

Triacs Selection Notes

Select this component based on its 1000 V blocking capability and 6 A continuous current handling. Consider the TO-220-2 package for adequate heat dissipation in steady-power applications. Verify gate sensitivity requirements align with the 35 mA trigger specification across all operating quadrants.

Triacs Part Context

This triac belongs to the QK series of high-voltage thyristors from Littelfuse. The series is engineered for robust performance in industrial and consumer AC power control environments. The QK006VH4 specifically targets applications requiring reliable switching of inductive loads with high surge tolerance.

Triacs Replacement Considerations

Consult Littelfuse technical support for verified substitute part numbers. Generic equivalents may not match the specific alternistor structure or glass-passivation benefits. Ensure any replacement maintains the same voltage, current, and package compatibility.