Q4006LH4TP

Triacs Overview

The Littelfuse Q4006LH4TP is a bidirectional triac belonging to the Qxx06xxH series, designed for high-reliability power control applications. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (It RMS) of 6 A. The device operates within a junction temperature range of -40°C to +125°C and utilizes a TO-220-2 through-hole package with an isolated tab. Key electrical characteristics include a maximum holding current of 35 mA, a gate trigger voltage of 1.3 V, and a gate trigger current of 35 mA. The on-state voltage is specified at 1.6 V, while the off-state leakage current remains at 10 uA under VDRM conditions.

Triacs Feature Summary

• Integrated snubberless design capability for simplified circuit implementation
• High thermal stability supporting operation up to 125°C junction temperature
• Isolated mounting tab configuration for secure heat sink attachment

Triacs Applications

• Solid-state relay modules requiring robust switching performance
• Industrial motor speed control systems
• Lighting dimmer circuits for commercial and residential use

Triacs Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's part number with official Littelfuse documentation. Confirm that the specific suffix matches the required voltage and current ratings. Ensure compliance with RoHS and REACH standards as indicated in the product specifications before finalizing procurement orders.

Triacs Selection Notes

Select this component when a 400 V rating is sufficient for the application, offering a cost-effective alternative to higher voltage variants. The 6 A current capacity suits moderate power loads. Verify that the gate drive requirements align with the 35 mA trigger current specification to ensure reliable turn-on across the operating temperature range.

Triacs Part Context

This triac is part of the Qxx06xxH family, which emphasizes snubberless operation and high reliability. It shares the physical TO-220-2 footprint with other devices in the series but differs in voltage ratings. The 'H' suffix typically denotes specific handling or packaging attributes defined by the manufacturer.

Triacs Replacement Considerations

Direct substitutes include the Q4006L4TP, though it belongs to the standard Qxx06xx series without the H designation. Verify if the snubberless characteristics are critical for the specific application before substituting.