MAC9MG

Triacs Overview

The Littelfuse MAC9MG is a surface-mount TRIAC in the MAC9xG series, housed in a TO-220AB package. It features a peak repetitive off-state voltage of 600 V and an on-state RMS current rating of 8.0 A at a case temperature of 100°C. The device supports a peak non-repetitive surge current of 80 A and operates within a junction temperature range of -40°C to +125°C. Electrical characteristics include a maximum peak on-state voltage of 1.6 V and a minimum critical rate of rise of commutating current (di/dt) of 6.5 A/ms at 125°C. It offers high immunity to dv/dt with a minimum rating of 500 V/µs at 125°C.

Triacs Feature Summary

• Designed for full-wave AC control applications requiring high noise immunity
• Provides high commutating di/dt capability to minimize snubber networks
• Features uniform gate trigger currents across three quadrants

Triacs Applications

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

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact voltage rating and packaging configuration. Ensure that the procurement specifications align with the required thermal management capabilities for the intended operating environment. Cross-reference the component marking system to validate authenticity and traceability during the sourcing process.

Triacs Selection Notes

Select the MAC9MG when a 600 V blocking voltage is required alongside an 8.0 A RMS current rating. Consider the TO-220AB package for through-hole mounting requirements. Evaluate the thermal resistance values to ensure adequate heat dissipation for the expected duty cycle. Confirm that the gate trigger parameters match the driving circuit capabilities for reliable switching.

Triacs Part Context

The MAC9MG belongs to the MAC9xG family, which includes variants with different voltage ratings such as the MAC9DG (400 V) and MAC9NG (800 V). All members share the same physical footprint and general electrical characteristics, differing primarily in their peak repetitive off-state voltage specifications. This standardization simplifies inventory management for designs requiring varying voltage levels.

Triacs Replacement Considerations

Direct replacements within the same series include the MAC9DG and MAC9NG, provided the voltage rating meets the circuit requirements. Verify that any substitute component maintains the same TO-220AB package dimensions and pinout configuration to ensure mechanical compatibility.