Q6004LT

Triacs Overview

The Littelfuse Q6004LT is a Triac device from the Teccor Quadrac series, integrating a diac trigger within the same package. It features a 600V repetitive peak off-state voltage (V(DRM)) and an on-state RMS current (I(T)RMS) of 4A. The component utilizes a TO-220 flange mount package with three pins and isolated case connection. It operates as a single bidirectional AC switch controlled by gate polarity. The device includes glass-passivated junctions for reliability and meets RoHS compliance standards.

Triacs Feature Summary

• Integrated Diac Trigger
• Electrically Isolated Package
• Glass-Passivated Junctions

Triacs Applications

• AC speed controls
• Temperature modulation controls
• Lighting controls

Triacs Procurement Notes

Verify the specific ordering suffix to confirm lead-free status and packaging details. Ensure the selected variant matches the required voltage and current ratings for the target application. Confirm RoHS compliance and agency approvals such as UL recognition before finalizing procurement orders.

Triacs Selection Notes

Select this component for applications requiring noise immunity in AC switching circuits. The integrated diac simplifies design by eliminating discrete components. Consider the TO-220 isolation rating when designing thermal management and mounting structures for high-voltage environments.

Triacs Part Context

This part belongs to the QxxxxLTx series of Teccor Quadrac devices developed by Littelfuse. These devices combine a triac and a diac trigger in one package to reduce assembly time and cost. The series offers various current and voltage ratings to suit different AC phase control requirements.

Triacs Replacement Considerations

Check for compatible parts within the QxxxxLTx series that match the 600V and 4A specifications. Verify pinout compatibility and thermal characteristics when substituting with other manufacturers' integrated triac-diac units.

Triacs FAQ

What is the primary advantage of the Q6004LT over a standard triac?

It integrates a diac trigger inside the package, saving assembly time and expense compared to using a discrete diac with a gated triac.

Is the Q6004LT electrically isolated?

Yes, the TO-220 package provides electrical isolation of 2500V rms from the leads to the mounting surface.

What type of junction protection does the device feature?

All Teccor triac chips in this series have glass-passivated junctions to ensure long-term device reliability and parameter stability.