Q6004LTTP

Triacs Overview

The Littelfuse Q6004LTTP is a Quadrac device, which integrates a triac and a diac trigger within a single package. It features a rated repetitive off-state voltage (VDRM) of 600 V and an on-state RMS current (ITRMS) of 4 A. The device utilizes a TO-220 package with an electrically isolated mounting surface, rated at 2500 V rms from leads to the tab. Key electrical parameters include a gate trigger voltage (VGT) of 2.5 V and a gate trigger current (IGT) of 25 mA. The maximum holding current (Ih) is 30 mA, and the operating temperature range spans from -40 °C to +125 °C.

Triacs Feature Summary

• Integrated Diac Trigger: Combines a triac and a diac in one package to eliminate external components and assembly time.
• Electrically Isolated Package: The TO-220 housing provides 2500 V rms isolation between leads and the mounting surface, removing the need for separate insulators.
• Noise Immunity: Designed for AC switching and phase control applications requiring high noise immunity.

Triacs Applications

• AC speed controls
• Temperature modulation controls
• Lighting controls

Triacs Procurement Notes

Verify the specific suffix LTTP against official Littelfuse documentation to confirm pinout configuration and isolation ratings. Ensure compliance with RoHS directives if required by the design. Confirm that the integrated diac characteristics match the application requirements without additional external circuitry.

Triacs Selection Notes

Select this component for designs requiring simplified assembly of AC phase control circuits. The integrated diac reduces bill-of-materials count compared to discrete triac-diac combinations. Verify that the 600 V rating and 4 A current capacity meet the load specifications. Consider the thermal management requirements associated with the TO-220 flange mount package.

Triacs Part Context

The Q6004LTTP belongs to the Teccor Quadrac family developed by Littelfuse. These devices are bidirectional AC switches designed to replace separate triac and diac assemblies. The series offers current capacities ranging from 4 A to 15 A and voltage ratings up to 600 V, targeting applications where noise immunity and compact integration are prioritized.

Triacs Replacement Considerations

Direct replacements must be verified as Quadrac devices with identical VDRM, ITRMS, and package isolation. Generic triacs require external diacs and snubber networks, altering the PCB layout and component count. Consult Littelfuse for exact cross-reference data.

Triacs FAQ

Does the Q6004LTTP require an external diac?

No, the Q6004LTTP is a Quadrac device that includes a diac trigger mounted inside the same package as the triac.

What is the isolation rating of the TO-220 package?

The package is electrically isolated to 2500 V rms from the leads to the mounting surface.

What is the typical gate trigger current for this device?

The gate trigger current (IGT) is typically 25 mA.