MAC12DG

Triacs Overview

The Littelfuse MAC12DG is a three-terminal, bidirectional triac in the MAC12D series, housed in a TO-220AB package. It features a peak repetitive off-state voltage of 400 V and an on-state RMS current rating of 12 A at 70°C. The device supports a peak non-repetitive surge current of 100 A and operates within a junction temperature range of -40°C to +125°C. Electrical characteristics include a maximum peak on-state voltage of 1.85 V, a gate trigger current up to 35 mA, and a holding current maximum of 40 mA. Thermal resistance from junction to case is 2.2 °C/W.

Triacs Feature Summary

• Designed for high-performance full-wave AC control applications requiring high noise immunity
• Provides uniform gate trigger currents across Quadrants Q1, Q2, and Q3
• Features high commutating di/dt capability of 6.5 A/ms minimum at 125°C
• Offers high immunity to dv/dt with a minimum rating of 250 V/µs at 125°C

Triacs Applications

• High performance full-wave AC control circuits
• Applications requiring high noise immunity
• Systems demanding high commutating di/dt performance

Triacs Procurement Notes

Verify the specific part number suffix against official Littelfuse documentation to confirm the exact blocking voltage rating (400V, 600V, or 800V) and compliance status. Ensure that the ordering information matches the required package style and shipping quantity specifications provided in the manufacturer's datasheet.

Triacs Selection Notes

Select the MAC12DG when a 400 V blocking voltage is required alongside a 12 A RMS current rating. Consider this component for designs needing robust dv/dt and di/dt performance at elevated temperatures. Verify thermal management requirements based on the specified junction-to-case thermal resistance.

Triacs Part Context

The MAC12DG belongs to the MAC12x family, which includes variants with different voltage ratings such as the MAC12M (600 V) and MAC12N (800 V). All devices share the same physical TO-220AB package and general electrical characteristics, differing primarily in their peak repetitive off-state voltage capabilities.

Triacs Replacement Considerations

MAC12MG and MAC12NG are confirmed substitutes within the same product family, offering identical packaging and current ratings but with higher blocking voltages of 600 V and 800 V respectively.