QK008N5RP

Triacs Overview

The Littelfuse QK008N5RP is a bidirectional triac designed for AC power control applications. It features an RMS on-state current rating of 8 A and a rated repetitive peak off-state voltage (VDRM) of 1 kV. The device operates within a junction temperature range of -40°C to +125°C. Key electrical parameters include a maximum holding current of 35 mA, a gate trigger voltage of 1.3 V, and a gate trigger current of 35 mA. It exhibits a typical on-state voltage of 1.6 V and a maximum non-repetitive peak on-state current of 83 A or 100 A depending on the pulse width. The component is housed in an SMTO-263-2 surface-mount package.

Triacs Feature Summary

• High voltage blocking capability suitable for mains-connected loads
• Surface-mount construction for automated PCB assembly
• Low gate drive requirements for simplified control circuits

Triacs Applications

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

Triacs Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm exact electrical tolerances and packaging configuration. Ensure the ordering code matches the required voltage and current ratings for the target circuit design before procurement.

Triacs Selection Notes

Select this component when a 1 kV blocking voltage is required for 8 A AC loads in a compact surface-mount form factor. Verify that the gate drive circuit can supply at least 35 mA to ensure reliable triggering across the specified temperature range.

Triacs Part Context

This part belongs to the Littelfuse Teccor series of high-voltage triacs. It shares the SMTO-263-2 footprint with other devices in the family but differs in voltage and current ratings compared to lower-voltage variants like the Q8008N5RP.

Triacs Replacement Considerations

Direct replacements must match the 1 kV VDRM, 8 A It(RMS), and SMTO-263-2 package. Verify pinout compatibility and thermal characteristics before substituting.