MAC15SN

Triacs Overview

The MAC15SN is a sensitive gate triac from onsemi, designed for industrial and consumer applications requiring full-wave AC load control. It features an 800V blocking voltage and a 15A RMS on-state current capability. The device is housed in a TO-220 package (Case 221A-09) with three pins. Key electrical specifications include a minimum high dv/dt immunity of 25 V/μs at 110°C and a high commutating di/dt of 8.0 A/ms minimum at 110°C. Maximum values for gate trigger current (IGT), gate trigger voltage (VGT), and holding current (IH) are specified to ensure reliable triggering.

Triacs Feature Summary

• Sensitive gate design for reliable triggering with low gate drive requirements
• High immunity to rate-of-rise of off-state voltage (dv/dt)
• High commutating rate-of-rise of on-state current (di/dt) capability
• Robust construction suitable for demanding AC load switching environments

Triacs Applications

• Industrial AC load control systems
• Consumer appliance motor speed controls
• Full-wave AC power regulation circuits
• Heating element control applications

Triacs Procurement Notes

Verify the specific ordering suffix matches the required package and temperature range. Confirm that the sensitive gate variant aligns with the circuit's gate drive capabilities. Ensure the TO-220 thermal management strategy meets the junction temperature requirements under maximum load conditions. Cross-reference the datasheet parameters against the application's peak voltage and current stresses to guarantee operational reliability.

Triacs Selection Notes

Select this component when high dv/dt and di/dt robustness are critical for system stability. The sensitive gate characteristic simplifies driver circuit design by reducing required gate current. Consider the TO-220 package for its thermal dissipation advantages in higher power scenarios compared to smaller packages. Evaluate the 800V rating against the line voltage peaks to provide adequate safety margin.

Triacs Part Context

The MAC15SN belongs to onsemi's family of sensitive gate triacs, which are silicon bidirectional thyristors optimized for AC power control. These devices are engineered to replace older triac technologies in modern industrial and consumer electronics. The MAC series generally offers improved reliability and performance over standard gate devices, making them suitable for widespread AC switching applications.

Triacs Replacement Considerations

Consult official substitution lists for direct replacements. Generic triac equivalents may differ in gate sensitivity or dv/dt ratings. Verify pinout compatibility and thermal characteristics before substituting with other manufacturers' parts.