QK008LH4TP

Triacs Overview

The QK008LH4TP is a bidirectional triac from Littelfuse, rated for 1000V blocking voltage and 8A average on-state current. It features a gate trigger current of 35mA and utilizes an internally isolated TO-220AB package. The device operates within a junction temperature range of -40°C to 125°C.

Triacs Feature Summary

• Snubberless design capability for simplified circuit implementation
• Internally isolated tab construction for enhanced safety
• High-voltage rating suitable for demanding AC switching environments

Triacs Applications

• AC phase control applications
• Motor speed modulation circuits
• Temperature modulation systems

Triacs Procurement Notes

Verify the specific ordering suffix to confirm the exact package configuration and tape-and-reel specifications. Ensure compatibility with the intended thermal management strategy given the through-hole mounting requirements. Cross-reference the datasheet for precise electrical limits before finalizing the bill of materials.

Triacs Selection Notes

Select this component for applications requiring high voltage isolation and moderate current handling in AC power control scenarios. The internal isolation feature reduces the need for external insulating hardware. Evaluate the thermal dissipation capabilities against the expected load profile to ensure reliable operation within the specified temperature range.

Triacs Part Context

This part belongs to the Low Power TRIAC series up to 1200V, designed for general-purpose AC switching. It offers a balance of voltage rating and current capacity for consumer and industrial electronics. The series provides various packaging options to suit different assembly and thermal requirements.

Triacs Replacement Considerations

Direct substitutes include other 1000V, 8A triacs with similar gate trigger characteristics and TO-220AB isolation packages. Verify pinout compatibility and thermal resistance values when considering alternative manufacturers or series.