QK006RH4

Triacs Overview

The Littelfuse QK006RH4 is a bidirectional triac belonging to the Qxx06xxH series, designed for AC power control applications. It features a rated repetitive off-state voltage (VDRM) of 1000 V and an RMS on-state current (IT(RMS)) of 6 A. The device operates within a junction temperature range of -40°C to +125°C. Key electrical parameters include a maximum holding current (IH) of 35 mA, a gate trigger current (IGT) of 35 mA, and a gate trigger voltage (VGT) of 2 V. The on-state voltage drop is specified at 1.6 V, with a non-repetitive peak surge current capability of 60 A. The component utilizes a TO-220AB package.

Triacs Feature Summary

• High-voltage blocking capability suitable for mains-connected loads
• Sensitive gate drive compatibility for microprocessor interfaces
• Robust thermal management via metal tab mounting

Triacs Applications

• Solid-state relays
• Motor speed control circuits
• Lighting dimmer switches

Triacs Procurement Notes

Verify the specific suffix 'H4' against the manufacturer's latest datasheet to confirm pinout orientation and packaging style. Ensure compliance with RoHS directives if required by the target market. Cross-reference the Mouser part number 576-QK006RH4 for accurate distributor identification and availability status before finalizing procurement orders.

Triacs Selection Notes

Select this component when a 1000 V rating is necessary for high-voltage AC lines. The 6 A current rating suits moderate power loads. Verify that the load current does not exceed the IT(RMS) limit under worst-case thermal conditions. Consider the TO-220AB package size for PCB layout constraints and heatsinking requirements in the final assembly design.

Triacs Part Context

This triac is part of the Qxx06xxH family, which groups devices by their 6 A current handling and 1000 V voltage ratings. Variations within the series typically differ by gate sensitivity or specific thermal characteristics. The QK006RH4 represents a standard configuration within this lineup, offering a balance of voltage withstand and current capacity for general industrial AC switching tasks.

Triacs Replacement Considerations

Direct replacements must match the 1000 V VDRM, 6 A IT(RMS), and TO-220AB package. Check equivalent parts from other manufacturers for compatible gate trigger currents and voltages to ensure circuit stability without modification.