QK008L5TP

Triacs Overview

The Littelfuse QK008L5TP is a standard triac designed for AC power control applications. It features an 800 V repetitive peak off-state voltage and an 8 A RMS on-state current capability. The device utilizes a TO-220-2 package with an isolated tab for through-hole mounting, facilitating heat dissipation in industrial environments. Key electrical characteristics include a maximum holding current of 35 mA and a gate trigger current of 35 mA. It operates within a junction temperature range of -40°C to +125°C and exhibits a low on-state voltage of 1.6 V.

Triacs Feature Summary

• High-voltage blocking capability suitable for demanding AC line applications
• Robust thermal management via insulated tab packaging
• Sensitive gate drive requirements for efficient triggering

Triacs Applications

• Industrial motor speed control systems
• Solid-state relays for AC loads
• General-purpose AC power switching circuits

Triacs Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm pinout and isolation specifications. Ensure the ordering code matches the required package variant. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before finalizing procurement plans.

Triacs Selection Notes

Select this component when an 800 V rating and 8 A continuous current are required for through-hole implementations. Compare the 35 mA gate trigger threshold against available driver capabilities to ensure reliable turn-on. Evaluate thermal resistance requirements relative to the TO-220-2 package constraints for the intended ambient operating conditions.

Triacs Part Context

This device belongs to the Qxx08Lxx series of standard triacs from Littelfuse. The series is engineered for general-purpose AC power control, offering a balance of voltage handling and current capacity. It serves as a foundational component for designers requiring reliable thyristor-based switching solutions in medium-power industrial and commercial equipment.

Triacs Replacement Considerations

Consult official Littelfuse substitution guides for verified equivalents. Potential alternatives may include other 800 V, 8 A triacs in TO-220 packages from the same manufacturer or compatible third-party sources, provided electrical parameters and pin configurations align.