Q4010L4TP

Triacs Overview

The Littelfuse Q4010L4TP is a bidirectional triac from the Qxx10xx series, designed for AC switching and phase control applications. It features a TO-220-2 package with electrical isolation of 2500V rms between leads and the mounting surface. Key electrical parameters include a maximum repetitive peak off-state voltage (VDRM) of 400V, an on-state RMS current (ITRMS) of 10A, and a gate trigger current range of 25mA to 25mA. The device exhibits a maximum on-state voltage (VTM) of 1.6V and a holding current of 10uA at VDRM. It utilizes glass-passivated junctions for reliability and is RoHS compliant.

Triacs Feature Summary

• Integrated diac trigger mechanism within the same package as the triac for simplified circuit design
• Electrically isolated TO-220 package eliminating the need for external insulators
• Glass-passivated junctions ensuring long-term parameter stability and reliability

Triacs Applications

• AC speed controls
• Temperature modulation controls
• Lighting controls requiring noise immunity

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and compliance status. Ensure the component matches the required voltage and current ratings for the target application. Cross-reference the part number with Littelfuse documentation to validate availability and manufacturing origin before procurement.

Triacs Selection Notes

Select this component for applications requiring integrated triac-diac functionality in a high-voltage isolated package. Consider the 400V blocking capability and 10A current rating when designing AC power control circuits. Verify thermal management requirements for the TO-220-2 package based on the expected load conditions and ambient temperature.

Triacs Part Context

This part belongs to the Qxx10xx series of Teccor brand Quadrac devices developed by Littelfuse. These devices combine a triac and a diac trigger in a single package to reduce assembly time and cost. The series offers various voltage and current ratings suitable for diverse AC switching needs.

Triacs Replacement Considerations

Check for direct substitutes within the Qxx10xx series that match the 400V and 10A specifications. Verify pinout compatibility and thermal characteristics if considering alternative manufacturers' triacs with integrated triggers.

Triacs FAQ

What is the isolation voltage of the Q4010L4TP package?

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

Does the Q4010L4TP require an external diac?

No, it is a Quadrac device that includes a diac trigger mounted inside the same package.

What is the typical gate trigger current for this triac?

The gate trigger current is specified as 25mA to 25mA according to the product attributes.