Q6012LTH1LEDTP

Triacs Overview

The Littelfuse Q6012LTH1LEDTP is a Quadrac, integrating a Triac and DIAC in a single TO-220AB package. It features a 600V rated repetitive off-state voltage (VDRM/VRRM) and an RMS on-state current of 12A. The device includes an internal trigger with a breakover voltage range of 33V to 43V. Key electrical parameters include a maximum holding current of 8mA, a maximum on-state voltage of 1.6V, and a critical rate-of-rise of on-state current (di/dt) of 70 A/µs at 110°C. It operates within a junction temperature range of -40°C to 110°C.

Triacs Feature Summary

• Integrates a Triac and DIAC into a single component to simplify circuit design.
• Optimized for LED lighting applications with low holding current characteristics.
• Features an isolated mounting tab for ease of heat sinking and high isolation voltage.
• Provides full control of light output at extreme low load conditions.

Triacs Applications

• Lighting dimmers with LED loads
• AC solid-state switches
• Small low current motor speed controls

Triacs Procurement Notes

Verify the specific ordering suffix 'TP' against the manufacturer's official documentation to confirm tube packing details. Ensure the component matches the required TO-220AB isolated package form factor. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement specifications.

Triacs Selection Notes

Select this component for AC phase control circuits requiring integrated triggering. The 8mA maximum holding current makes it suitable for low-power LED loads where standard Triacs may fail to latch. Verify that the 600V voltage rating accommodates peak line voltages and transients in the target application environment.

Triacs Part Context

This part belongs to the Q6012LTH1LED series of Alternistor Quadracs manufactured by Littelfuse under the Teccor brand. These devices are specifically engineered for AC switching and phase control applications, combining thyristor switching with internal diac triggering capabilities in a standardized industrial package.

Triacs Replacement Considerations

Direct replacements must match the 12A current rating, 600V voltage rating, and integrated DIAC functionality. Verify that substitute components offer comparable holding current specifications to ensure proper operation with LED loads.

Triacs FAQ

What is the function of the internal trigger in this device?

The internal trigger functions as a DIAC with a breakover voltage between 33V and 43V, eliminating the need for a separate external DIAC component in the circuit.

Why is the holding current specification important for this component?

The maximum holding current of 8mA allows the device to maintain conduction with very low load currents, which is essential for preventing flickering in LED dimming applications.

What is the isolation capability of the package?

The device provides a minimum isolation voltage of 2500V AC between the mounting tab and the active terminals (MT1/MT2).