MAC15SM TRIAC Equivalent & Substitute Parts

Part Overview

The MAC15SM is a Logic-Sensitive Gate TRIAC manufactured by onsemi, rated for 600V off-state voltage and 15A on-state current in a Through Hole TO-220 package. This component is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The MAC15SM serves as a general-purpose AC switching device for applications requiring sensitive gate triggering characteristics and moderate current handling capacity.

Key Parameters

Parameter	Value
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	15 A
Voltage - Gate Trigger (Vgt) (Max)	1.5 V
Current - Gate Trigger (Igt) (Max)	5 mA
Current - Hold (Ih) (Max)	10 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	120A @ 60Hz
Operating Temperature Range	-40°C ~ 110°C (TJ)
Package / Case	TO-220-3
Mounting Type	Through Hole
Triac Type	Logic - Sensitive Gate

Substitute Part Grouping Explanation

Substitution eligibility for the MAC15SM is determined by the following critical parameters:

Voltage - Off State: Must be 600V or higher
Triac Type: Must be Logic-Sensitive Gate configuration
Package / Case: Must be TO-220-3 or compatible TO-220 variant
Current - On State (It (RMS)): Must meet or exceed 15A rating
Gate Trigger Characteristics: Vgt and Igt must be compatible with existing gate drive circuits
Operating Temperature: Must support the required thermal range

The substitute parts identified below meet these core electrical and mechanical requirements, enabling direct or near-direct replacement in applications designed for the MAC15SM.

Parameter Comparison

Parameter	MAC15SM (onsemi)	BTA12-600TWRG (STMicroelectronics)	BTA216-600D,127 (WeEn Semiconductors)
Voltage - Off State	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	15 A	12 A	16 A
Voltage - Gate Trigger (Vgt) (Max)	1.5 V	1.3 V	1.5 V
Current - Gate Trigger (Igt) (Max)	5 mA	5 mA	5 mA
Current - Hold (Ih) (Max)	10 mA	10 mA	15 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	120A @ 60Hz	120A, 126A	140A, 150A
Operating Temperature Range	-40°C ~ 110°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)
Package / Case	TO-220-3	TO-220-3	TO-220-3
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

BTA12-600TWRG (STMicroelectronics): This substitute offers active product status and ROHS3 compliance. The on-state current rating of 12A is below the MAC15SM specification of 15A, making this option suitable only for applications where the actual load current does not exceed 12A. Gate trigger characteristics (Vgt 1.3V, Igt 5mA) are compatible with MAC15SM gate drive circuits. Extended operating temperature range (-40°C to 125°C) provides improved thermal margin.

BTA216-600D,127 (WeEn Semiconductors): This substitute provides the highest on-state current rating at 16A, exceeding the MAC15SM specification and offering design margin. Active product status and RoHS compliance ensure long-term availability and regulatory alignment. Gate trigger voltage matches the MAC15SM at 1.5V maximum. Higher hold current (15mA vs. 10mA) and surge current ratings (140A, 150A) indicate enhanced robustness. Extended operating temperature range supports demanding thermal environments.

Frequently Asked Questions (FAQ)

Q: Can the BTA12-600TWRG replace the MAC15SM in all applications?

A: The BTA12-600TWRG is suitable only for applications where the on-state current requirement does not exceed 12A. If the design requires the full 15A capability of the MAC15SM, the BTA12-600TWRG will not provide adequate current capacity. The BTA216-600D,127 is the preferred substitute for full current compatibility.

Q: Are the gate trigger characteristics of the substitute parts compatible with existing MAC15SM circuits?

A: Yes. Both substitute parts maintain gate trigger voltage (Vgt) and gate trigger current (Igt) specifications within acceptable ranges for circuits designed for the MAC15SM. The BTA12-600TWRG offers a lower Vgt (1.3V vs. 1.5V), which may reduce gate drive power requirements. The BTA216-600D,127 matches the MAC15SM Vgt specification exactly at 1.5V.

Q: What are the package compatibility considerations?

A: All three parts use the TO-220-3 package or compatible TO-220 variant, ensuring mechanical and thermal compatibility with existing PCB layouts and heatsinking arrangements. No package-related modifications are required for substitution.

Q: How do the operating temperature ranges compare?

A: The MAC15SM operates from -40°C to 110°C. Both substitute parts extend the upper temperature limit to 125°C, providing additional thermal margin in high-temperature environments. The lower temperature limit remains -40°C across all three parts.

Q: What compliance advantages do the substitute parts offer?

A: The MAC15SM is RoHS non-compliant. The BTA12-600TWRG is ROHS3 compliant, and the BTA216-600D,127 is RoHS compliant. For new designs or applications subject to RoHS regulations, either substitute part is required. Both substitute parts are REACH unaffected, matching the MAC15SM specification.

Q: Which substitute part is recommended for new designs?

A: The BTA216-600D,127 is the recommended substitute for new designs. It provides on-state current capability exceeding the MAC15SM specification (16A vs. 15A), active product status ensuring long-term availability, full RoHS compliance, and enhanced surge current ratings. These characteristics provide design margin and regulatory alignment for production applications.

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