MAC16HCD

Triacs Overview

The MAC16HCD is a bidirectional triac manufactured by onsemi, designed for general-purpose AC power control applications. It features a maximum repetitive peak off-state voltage of 400 V and an RMS on-state current rating of 16 A. The device operates within a junction temperature range from -40 °C to +125 °C and is housed in a TO-220AB insulated package with three terminals. Key electrical characteristics include a holding current maximum of 10 mA and a gate trigger voltage of 1.5 V. The component supports standard through-hole mounting and complies with RoHS directives, ensuring suitability for industrial and consumer electronics requiring reliable phase-angle firing or zero-crossing switching.

Triacs Feature Summary

• Capable of handling high RMS on-state currents for robust AC load management
• Provides electrical isolation via an insulated thermal interface in the package
• Supports both standard and fast operating modes for versatile control applications

Triacs Applications

• Solid-state relays for industrial machinery
• Lighting dimmer circuits for residential and commercial use
• Motor speed control systems for small appliances

Triacs Procurement Notes

Verify the specific suffix code against the official onsemi datasheet to confirm package type and compliance status. Ensure the ordering part number matches the required voltage and current ratings for the target application. Cross-reference with the manufacturer's latest product change notifications to account for any nomenclature updates following corporate integrations. Confirm availability through authorized distributors as lead times may vary based on production schedules.

Triacs Selection Notes

Select this component when a 400 V blocking voltage and 16 A continuous current capacity are required for AC switching. The insulated package facilitates direct mounting to heatsinks without additional insulating hardware, simplifying thermal management design. Consider the gate trigger characteristics to ensure compatibility with the driving circuitry logic levels. Evaluate the thermal resistance parameters relative to the expected ambient temperature and duty cycle to maintain safe junction temperatures during operation.

Triacs Part Context

The MAC16HCD belongs to the MAC series of triacs produced by onsemi, formerly Fairchild Semiconductor. This family is widely utilized in power control modules where reliability and high current handling are critical. The device represents a standard solution for replacing older thyristor technologies in modern AC regulation designs, offering improved switching performance and thermal stability compared to previous generations.

Triacs Replacement Considerations

Check for equivalent parts such as the MAC16M or MAC16L if different voltage ratings or package variations are needed. Verify pinout compatibility before substituting to avoid circuit redesign. Ensure that any replacement component meets the same insulation and thermal requirements specified for the original design.