MAC16HCDG

Triacs Overview

The Littelfuse MAC16HCDG is a silicon gate triac designed for 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 a case temperature of 80°C. The device supports a peak non-repetitive surge current of 150 A and operates within a junction temperature range of -40°C to +125°C. Electrical characteristics include a maximum on-state voltage of 1.6 V, a holding current maximum of 50 mA, and a gate trigger current maximum of 50 mA across three quadrants. Packaged in a TO-220 (Case 221A) format, it offers high commutating di/dt and immunity to dv/dt.

Triacs Feature Summary

• High commutating di/dt capability and high immunity to dv/dt at elevated temperatures
• Uniform gate trigger currents provided across Quadrants Q1, Q2, and Q3
• Glass passivated junctions engineered for reliability and uniformity

Triacs Applications

• Full wave AC motor controls
• Heating controls
• Lighting dimmers

Triacs Procurement Notes

Verify the specific voltage rating suffix against the application requirements, as the MAC16HC family includes variants with different blocking voltages. Confirm that the TO-220 package style matches the thermal management strategy and board layout constraints. Ensure the gate drive circuitry can supply the necessary trigger current specifications defined in the datasheet.

Triacs Selection Notes

Select this component when a 400 V blocking voltage is required for AC switching duties. Compare the 16 A RMS current rating against the load requirements, applying derating curves if the case temperature exceeds 80°C. Evaluate the thermal resistance values to determine if additional heatsinking is necessary for continuous operation under the expected load conditions.

Triacs Part Context

This part belongs to the MAC16HC series of triacs from Littelfuse, which also includes the MAC16HCMG and MAC16HCNG models. These devices share identical physical packaging and general electrical performance profiles but differ primarily in their peak repetitive off-state voltage ratings. The MAC16HCDG specifically denotes the 400 V variant within this industrial-grade thyristor lineup.

Triacs Replacement Considerations

Direct replacements within the same manufacturer line include the MAC16HCMG and MAC16HCNG, provided the lower voltage ratings of these alternatives are acceptable for the circuit design.