QK015L5TP

Triacs Overview

The Littelfuse QK015L5TP is a bidirectional triac from the Teccor Qxx15xx series, designed for high-voltage AC switching applications. It features a rated repetitive off-state voltage (VDRM) of 1 kV and an RMS on-state current (IT(RMS)) of 15 A. The device operates within a junction temperature range of -40°C to +125°C and utilizes a TO-220AB isolated package for through-hole mounting. Key electrical characteristics include a maximum holding current of 70 mA, a gate trigger voltage of 2.5 V, and a typical gate trigger current ranging from 50 mA to 75 mA. The on-state voltage drop is specified at 1.6 V, with a non-repetitive peak on-state current capability of 100 A or 200 A depending on pulse conditions.

Triacs Feature Summary

• High voltage blocking capability suitable for industrial AC power control
• Robust thermal performance with a wide operating temperature range up to 125°C
• Isolated package design for safe mounting on heat sinks without external insulation requirements

Triacs Applications

• Industrial motor speed control systems
• Solid state relays for AC load switching
• Lighting dimmer circuits for commercial fixtures

Triacs Procurement Notes

Verify the specific suffix 'L5' against the official Littelfuse datasheet to confirm pinout configuration and isolation specifications. Ensure the ordered component matches the required TO-220AB package type and that RoHS compliance documentation is available for the manufacturing batch. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components.

Triacs Selection Notes

Select this component when a 1 kV rating and 15 A continuous current capacity are required in an isolated through-hole package. Compare the gate trigger current specifications with the driving circuit capabilities to ensure reliable turn-on. Consider the thermal resistance of the TO-220AB package and the need for adequate heatsinking under full load conditions to maintain junction temperatures within the specified limits.

Triacs Part Context

This triac belongs to the Teccor Qxx15xx family, which standardizes 15 A devices across various voltage ratings. The QK015L5TP specifically denotes the 1000 V variant within this series. It shares common electrical parameters with other members like the QK015R5 but differs in package style and specific isolation characteristics defined by the manufacturer's internal coding.

Triacs Replacement Considerations

Direct substitutes may include other 1000 V, 15 A triacs in TO-220AB packages from Littelfuse or competitors, provided gate trigger characteristics and holding currents are compatible. Verify pinout compatibility before substitution to prevent circuit damage.