MAC228A6

Triacs Overview

The MAC228A6G is a sensitive gate triac from the MAC228A series, manufactured by onsemi. It features an 8 A RMS on-state current and a 400 V peak repetitive off-state voltage (VDRM). The device utilizes a TO-220 package with a rugged thermowatt construction for efficient heat dissipation. Electrical characteristics include a maximum holding current of 15 mA and a typical gate trigger current of 5 mA to 10 mA depending on the quadrant. It operates within a junction temperature range of -40°C to +110°C.

Triacs Feature Summary

• Sensitive gate triggering capability in three modes for AC triggering on sinking current sources
• Four-mode triggering support for drive circuits that source current
• Diffused and glass-passivated junctions ensuring parameter uniformity and stability
• Center gate geometry designed for uniform current spreading

Triacs Applications

• Appliance controls
• Heater controls
• Motor controls
• Full-wave control of AC loads

Triacs Procurement Notes

Verify the specific ordering suffix when purchasing. The 'G' suffix indicates a lead-free package compliant with RoHS standards. Confirm the exact shipping configuration, as bulk packaging typically contains 500 units per reel while rail packaging may contain 50 units. Ensure the component matches the required voltage rating variant within the MAC228A series.

Triacs Selection Notes

Select this component based on the 400 V blocking voltage requirement and 8 A RMS current capacity. Consider the thermal resistance of 2.0 °C/W junction-to-case for heatsink design. Verify compatibility with the driving circuit's current sourcing or sinking capabilities, as the device supports both four-mode and three-mode triggering configurations.

Triacs Part Context

This part belongs to the MAC228A series of silicon bidirectional thyristors. Other variants in the series include MAC228A4G (200 V), MAC228A8G (600 V), and MAC228A10G (800 V), all sharing the same 8 A RMS current rating and TO-220 package style.

Triacs Replacement Considerations

Direct substitutes within the same series include MAC228A4G, MAC228A8G, and MAC228A10G, provided the voltage ratings align with the application requirements. Cross-manufacturer replacements require verification of pinout compatibility and electrical parameters.