QK016LH3

Triacs Overview

The Littelfuse QK016LH3 is a 1000V Alternistor Triac rated for 16A RMS on-state current. It features a snubberless design, eliminating the need for external RC networks. The device utilizes a TO-220 package and supports gate trigger currents of 20mA. This component is engineered for high-voltage AC switching applications requiring robust performance without additional buffering components.

Triacs Feature Summary

• Snubberless operation eliminates the requirement for external RC networks
• High voltage blocking capability up to 1000V
• Robust 16A RMS on-state current handling
• Standard TO-220 through-hole packaging

Triacs Applications

• AC solid-state switches
• Heating control systems
• Lighting phase control
• Motor speed controls

Triacs Procurement Notes

Verify component status carefully as this part may be discontinued or subject to supply constraints. Confirm exact datasheet revisions and physical dimensions against current inventory. Ensure compatibility with existing thermal management designs due to the TO-220 form factor. Check for alternative sourcing channels if primary distribution lists it as unavailable.

Triacs Selection Notes

Select this component for applications requiring high voltage isolation without snubber circuitry. The 16A rating suits moderate power AC loads. Consider the TO-220 package for ease of mounting on heatsinks. Verify gate trigger requirements match the driving circuit capabilities before integration into the design.

Triacs Part Context

This part belongs to the Littelfuse Alternistor Triac series, designed for snubberless operation. These devices integrate internal mechanisms to suppress voltage transients, simplifying circuit design. The series covers various current ratings while maintaining high voltage blocking capabilities suitable for industrial AC control environments.

Triacs Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Littelfuse official resources for direct replacements or cross-reference guides when this specific model is unavailable.