MAC12NG

Triacs Overview

The Littelfuse MAC12NG is a standard triac designed for full-wave AC control applications, featuring an 800 V peak repetitive off-state voltage and a 12 A RMS on-state current rating at 70°C. It operates within a junction temperature range of -40°C to +125°C and supports a non-repetitive surge current of 100 A. The device utilizes a TO-220AB package with uniform gate trigger currents across quadrants Q1, Q2, and Q3. Key electrical parameters include a maximum peak on-state voltage of 1.85 V, a maximum gate trigger current of 35 mA, and a maximum holding current of 40 mA. It offers high immunity to dv/dt (minimum 250 V/µs) and commutating di/dt (minimum 6.5 A/ms).

Triacs Feature Summary

• Designed for high-performance full-wave AC control requiring high noise immunity.
• Provides high commutating di/dt capability for reliable switching operations.
• Features uniform gate trigger currents across three operating quadrants.

Triacs Applications

• High performance full-wave AC control circuits
• Industrial motor speed controls
• Solid state relays

Triacs Procurement Notes

Verify the specific suffix 'N' corresponds to the 800V blocking voltage variant when sourcing. Confirm RoHS compliance and Pb-Free status as indicated in the datasheet. Ensure the TO-220AB package style matches the required PCB footprint. Check for any recent product change notices that might affect thermal or electrical specifications.

Triacs Selection Notes

Select the MAC12NG when an 800V blocking voltage is required, distinguishing it from the MAC12D (400V) and MAC12M (600V) variants. Consider the 12A RMS current rating against the expected load requirements and derating curves. Evaluate the thermal resistance characteristics for adequate heat sinking solutions to maintain junction temperatures within the specified operating range.

Triacs Part Context

The MAC12NG belongs to the MAC12x series of thyristors manufactured by Littelfuse. This series includes variants with different blocking voltages: MAC12D (400V), MAC12M (600V), and MAC12N (800V). All share the same physical package and general electrical characteristics, differing primarily in their peak repetitive off-state voltage ratings.

Triacs Replacement Considerations

MAC12MG serves as a direct substitute with identical electrical characteristics but a lower 600V blocking voltage rating. Verify that the system voltage does not exceed 600V before substituting. Other MAC12x variants (MAC12D, MAC12M) are pin-compatible but offer lower voltage ratings.

Triacs FAQ

What is the difference between MAC12D, MAC12M, and MAC12N?

The primary difference is the Peak Repetitive Off-State Voltage (VDRM/VRRM). MAC12D is rated for 400V, MAC12M for 600V, and MAC12N for 800V. All other electrical characteristics and the package remain the same.

What is the maximum gate trigger current for the MAC12NG?

The maximum gate trigger current (IGT) is 35 mA across all three quadrants (Q1, Q2, and Q3).

Is the MAC12NG RoHS compliant?

Yes, the MAC12NG devices are Pb-Free and RoHS compliant as stated in the datasheet.