MAC8DG

Triacs Overview

The Littelfuse MAC8DG is a bidirectional triac belonging to the MAC8M series, designed for AC power switching applications. It features an 80 A non-repetitive on-state current and a rated repetitive off-state voltage (VDRM) of 600 V. The device exhibits a maximum holding current of 40 mA and requires a gate trigger voltage of 1.5 V with a gate trigger current of 35 mA. Operating within a temperature range of -40°C to +125°C, it utilizes a TO-220-3 through-hole package. Key electrical characteristics include a 10 uA leakage current at VDRM and an on-state voltage of 1.6 V.

Triacs Feature Summary

• Bidirectional AC switching capability with integrated gate control for either polarity of main terminal voltage.
• High surge current handling capacity suitable for inductive load commutation.
• Glass-passivated junctions ensure long-term parameter stability and reliability.

Triacs Applications

• AC motor speed controls
• Temperature modulation systems
• Lighting dimmer circuits

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pinout configuration and thermal pad specifications. Ensure the procurement channel provides valid traceability documentation. Confirm that the component meets RoHS compliance requirements for the intended market. Cross-reference the part number with Littelfuse's latest product change notices to avoid obsolete stock.

Triacs Selection Notes

Select this component when high surge current capacity is required for inductive loads. Verify that the system voltage does not exceed the 600 V rating under transient conditions. Ensure the gate drive circuit can supply the specified 35 mA trigger current. Consider the TO-220-3 package for adequate heat dissipation during continuous operation. Check compatibility with snubber networks if dv/dt sensitivity is a concern.

Triacs Part Context

The MAC8DG is part of the MAC8M family of triacs manufactured by Littelfuse. This series is engineered for robust performance in general-purpose AC power control applications. The device shares common design principles with other members of the MAC8M line, focusing on reliability and ease of integration into industrial and consumer electronics.

Triacs Replacement Considerations

The MAC8MG is listed as an alias for this part number. Verify interchangeability by comparing mechanical dimensions and electrical parameters. Consult Littelfuse engineering for confirmation before substituting with other triac families.

Triacs FAQ

What is the maximum operating junction temperature?

The maximum operating temperature is +125°C.

Does the device require a snubber network?

While not explicitly stated as requiring one, high dv/dt environments may necessitate external snubber components to prevent false triggering.

What is the package type?

The device is housed in a TO-220-3 through-hole package.