QK008NH4RP

Triacs Overview

The Littelfuse QK008NH4RP is a bidirectional triac in the Qxx08xHx series, housed in an SMTO-263-2 surface-mount package. It supports an RMS on-state current of 8 A and a rated repetitive off-state voltage (VDRM) of 1 kV. The device features a maximum holding current of 35 mA, with gate trigger parameters of 1.3 V and 35 mA. On-state voltage is 1.6 V, while leakage current at VDRM is 20 uA. Non-repetitive peak currents are rated at 83 A and 100 A. Operating temperatures range from -40 C to +125 C.

Triacs Feature Summary

• High-voltage capability up to 1 kV for robust AC switching
• Surface-mount SMTO-263-2 packaging for automated assembly
• Glass-passivated junctions for parameter stability

Triacs Applications

• AC phase control circuits
• Solid-state relay inputs
• Lighting dimmer controls

Triacs Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or direct manufacturer channels. Confirm RoHS compliance status via official datasheets. Ensure ordering suffixes match required packaging formats such as reel quantities. Validate part numbers against current Littelfuse catalogs to avoid obsolete stock.

Triacs Selection Notes

Select this triac when 1 kV blocking voltage and 8 A continuous current are required in a compact SMD form factor. Compare gate sensitivity requirements against the 35 mA trigger threshold. Ensure thermal management aligns with the -40 C to +125 C operating range. Verify PCB layout compatibility with the SMTO-263-2 footprint dimensions.

Triacs Part Context

This component belongs to the Littelfuse Teccor Qxx08xHx series of high-voltage triacs. It shares the 8 A current rating with variants like Q8008NH4RP but offers higher voltage blocking. The series utilizes glass-passivated junction technology for reliability in industrial AC power applications.

Triacs Replacement Considerations

Q8008NH4RP serves as a lower voltage alternative within the same series. Cross-reference pinouts and thermal characteristics before substitution. Verify that the reduced voltage rating meets circuit safety margins.