Q6012RH5TP

Triacs Overview

The Littelfuse Q6012RH5TP is a 12 Amp Alternistor triac in the Qxx12xHx series, designed for AC switching and phase control. It features a 600 V repetitive peak off-state voltage (VDRM/VRRM) and operates in Quadrants I, II, and III with a maximum gate trigger current (IGT) of 50 mA. The device provides high commutation performance with a minimum dv/dt rating of 650 V/µs at 125°C. Packaged in a non-isolated TO-220AB (R-Package), it supports an RMS on-state current of 12 A and a non-repetitive surge current up to 120 A at 60 Hz. Thermal resistance from junction to case is 1.2 °C/W.

Triacs Feature Summary

• Alternistor design enables operation in Quadrants I, II, and III without requiring Quadrant IV functionality.
• High dv/dt capability minimizes false triggering in circuits with rapidly changing voltages.
• Glass-passivated junctions provide protection against environmental contaminants.
• Non-isolated mounting tab facilitates direct heat sinking for thermal management.

Triacs Applications

• AC solid-state switches
• Lighting controls and light dimmers
• Motor speed modulation controls
• Temperature modulation systems

Triacs Procurement Notes

Verify the specific voltage rating suffix within the part number to ensure compatibility with circuit requirements. Confirm that the TO-220AB package dimensions align with the target PCB layout. Check RoHS compliance status if restricted substances are a constraint. Ensure the gate sensitivity matches the driving circuit's output capabilities.

Triacs Selection Notes

Select this component for applications requiring high commutation performance with inductive loads. The 50 mA gate sensitivity suits standard logic drivers. Verify that the 600 V rating exceeds the peak line voltage plus transients. Consider the 1.2 °C/W thermal resistance for heatsink calculations under continuous load conditions.

Triacs Part Context

This device belongs to the Qxx12xHx series of 12 Amp Alternistor triacs. The 'R' designation indicates a non-isolated TO-220AB package, distinguishing it from the isolated 'L' variant. The 'H5' suffix specifies the 50 mA gate trigger current sensitivity level used across the 400 V to 1000 V voltage range options.

Triacs Replacement Considerations

Q6012LH5TP offers identical electrical characteristics but includes an electrically isolated mounting tab for enhanced safety in specific chassis configurations.

Triacs FAQ

Does the Q6012RH5TP operate in Quadrant IV?

No, the Alternistor design does not operate in Quadrant IV. It functions in Quadrants I, II, and III.

What is the minimum dv/dt rating at 125°C?

For the 600 V version, the minimum dv/dt rating is 650 V/µs at a junction temperature of 125°C.

Is the mounting tab electrically isolated?

No, the 'R' package denotes a non-isolated mounting tab common with the center lead.