QJ4006DH4RP

Triacs Overview

The Littelfuse QJ4006DH4RP is a bidirectional triac in the QJxx06xH series, housed in a surface-mount TO-252-3 (D-PAK) package. It supports an RMS on-state current of 6 A with a rated repetitive off-state voltage of 400 V. Key electrical parameters include a maximum on-state voltage of 1.4 V, a gate trigger voltage of 1.3 V, and a gate trigger current of 35 mA. The device exhibits a low off-state leakage current of 10 uA at VDRM. It operates within a temperature range from -40°C to +150°C and is supplied in reel packaging.

Triacs Feature Summary

• High thermal stability with a maximum junction temperature rating of +150°C for demanding environments
• Low power dissipation characteristics enabled by a minimal on-state voltage drop
• Sensitive gate drive requirements allowing for efficient control circuit integration

Triacs Applications

• AC motor speed control systems
• Solid-state relay implementations
• Lighting dimmer circuits

Triacs Procurement Notes

Verify component authenticity through official Littelfuse channels or authorized distributors. Confirm RoHS compliance status via the manufacturer's documentation. Ensure the TO-252-3 package orientation matches the design footprint. Validate that the specific suffix corresponds to the required reel quantity and handling specifications.

Triacs Selection Notes

Select this component when a 6 A RMS current capacity and 400 V blocking voltage are required in a compact SMD form factor. The high operating temperature limit makes it suitable for applications with restricted airflow. Compare gate sensitivity against alternative triacs if the driving circuit has limited output current capability.

Triacs Part Context

This part belongs to the QJxx06xH series of high-temperature triacs from Littelfuse. It shares the 6 A current rating with other variants but offers specific voltage and thermal optimizations. The D-PAK package provides a balance between thermal performance and board space efficiency compared to larger through-hole options.

Triacs Replacement Considerations

Direct substitutes within the same series include parts with different voltage ratings such as QJ6006DH4RP. Verify pinout compatibility and thermal resistance values before substituting with generic 6 A triacs in TO-252 packages.

Triacs FAQ

What is the maximum operating temperature for the QJ4006DH4RP?

The device is rated for a maximum operating temperature of +150°C.

Does the QJ4006DH4RP require a snubber network?

Official datasheets do not explicitly mandate a snubber network; however, application notes should be consulted for high dv/dt environments.

What is the typical gate trigger current for this triac?

The gate trigger current is specified as 35 mA.