MAC97A8G

Triacs Overview

The MAC97A8G is a planar passivated, very sensitive gate four-quadrant triac manufactured by onsemi. It is housed in a TO-92 (SOT54) plastic package designed for through-hole mounting. The device supports an RMS on-state current of 0.6 A and a non-repetitive peak on-state current of 8 A. It features a rated repetitive off-state voltage of 800 V with a maximum holding current of 10 mA. Gate triggering requirements include a maximum voltage of 2.5 V and a maximum current of 5 mA across all quadrants. The component operates within a junction temperature range up to 125 °C.

Triacs Feature Summary

• Very sensitive gate architecture enabling direct interfacing with microcontrollers and low-power logic circuits.
• Planar passivated construction providing robust blocking capabilities in all four operating quadrants.
• TO-92 plastic package optimized for cost-effective integration into general-purpose switching applications.

Triacs Applications

• General-purpose bidirectional AC switching
• Phase control circuits such as light dimmers
• Solid-state relay implementations

Triacs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm compliance status and packaging configuration. Confirm that the requested part number matches the exact electrical ratings required for the target application circuit design.

Triacs Selection Notes

Select this component when an 800 V rating is necessary for AC line voltages exceeding standard 600 V classifications. Ensure the driving circuit can supply at least 5 mA to guarantee reliable turn-on in all quadrants while maintaining thermal margins within the specified junction temperature limits.

Triacs Part Context

This device belongs to the MAC97 series of logic-sensitive triacs from onsemi. It shares the same physical footprint and basic switching topology as lower-voltage variants like the MAC97A6G, but offers increased voltage blocking capability suitable for higher potential AC mains environments.

Triacs Replacement Considerations

MAC97A8,412 by WeEn Semiconductors provides equivalent 600 V specifications in the same TO-92 package. Verify if the reduced voltage rating meets the system requirements before substituting.