MAC16DG

Triacs Overview

The Littelfuse MAC16DG is a four-layer triode alternating current switch designed for high-performance full-wave AC control applications. It features a peak repetitive off-state voltage of 400 V and an on-state RMS current rating of 16 A at 80°C. The device offers a peak non-repetitive surge current of 150 A and maintains uniform gate trigger currents across three quadrants. Key electrical characteristics include a maximum on-state voltage of 1.6 V, a holding current of 50 mA, and a critical rate of rise of off-state voltage of 500 V/µs. It operates within a junction temperature range of -40 to +125°C and utilizes a TO-220 package.

Triacs Feature Summary

• High commutating di/dt capability of 9.0 A/ms minimum at 125°C
• High immunity to dv/dt with a minimum of 500 V/µs at 125°C
• Uniform gate trigger currents provided in three quadrants
• Minimizes the need for snubber networks for protection

Triacs Applications

• Full-wave AC control circuits requiring high noise immunity
• Industrial solid state relays
• Motor speed controls
• Lighting dimmers

Triacs Procurement Notes

Verify the specific part number suffix against official Littelfuse documentation to confirm the exact blocking voltage rating. Ensure that thermal management requirements align with the specified junction-to-case thermal resistance. Confirm RoHS compliance status through the manufacturer's latest datasheet revision before finalizing procurement specifications.

Triacs Selection Notes

Select the MAC16DG when a 400 V blocking voltage is required for AC switching applications. Compare its 16 A RMS current rating against load requirements at the expected case temperature. Evaluate the need for high dv/dt immunity to potentially reduce external snubber components. Verify compatibility with the TO-220 mounting style for the target PCB or heatsink design.

Triacs Part Context

The MAC16DG belongs to the MAC16 series of thyristors manufactured by Littelfuse. This series includes variants with different voltage ratings, specifically the MAC16MG (600 V) and MAC16NG (800 V). All devices share identical current ratings and package styles but differ in their peak repetitive off-state voltage capabilities.

Triacs Replacement Considerations

Direct replacements within the same family include the MAC16MG and MAC16NG, which offer higher voltage ratings of 600 V and 800 V respectively. These substitutes maintain the same 16 A current rating and TO-220 package form factor.