MAC15SMG TRIAC Equivalent & Substitute Parts

Part Overview

The MAC15SMG 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 and substitute parts necessary for ongoing design support and procurement.

The MAC15SMG serves as a general-purpose thyristor for AC switching applications requiring sensitive gate triggering characteristics. Due to its obsolete status, active alternative components with compatible electrical and mechanical specifications are available from multiple manufacturers.

Substiute Parts

MAC15SMG

onsemiIn Stock: 31960MAC15SMG Datasheet

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BTA12-600TWRG

STMicroelectronicsIn Stock: 27626BTA12-600TWRG Datasheet

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BTA316-600D,127

WeEn SemiconductorsIn Stock: 943BTA316-600D,127 Datasheet

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BTB12-600TW3G

Littelfuse Inc.In Stock: 2375BTB12-600TW3G Datasheet

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BTB12-600TWRG

STMicroelectronicsIn Stock: 1455BTB12-600TWRG Datasheet

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MAC15MG

onsemiIn Stock: 6081MAC15MG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAC15SMG is determined by the following critical parameters:

• Voltage Rating (Off State): Must be 600V minimum
• Current Rating (On State): Must support 15A or higher
• Gate Trigger Characteristics: Voltage-Gate Trigger (Vgt) and Current-Gate Trigger (Igt) must be compatible with existing circuit design
• Package Type: TO-220 or TO-220AB through-hole mounting
• Triac Classification: Logic-Sensitive Gate or Standard gate type
• Operating Temperature: Must cover the required application range

Substitute parts are grouped into two categories based on current rating and gate sensitivity:

Category 1 - Direct Current Rating Match (15A): MAC15MG (onsemi) maintains the same 15A current rating as the original part.

Category 2 - Lower Current Rating (12A): BTA12-600TWRG (STMicroelectronics), BTB12-600TW3G (Littelfuse Inc.), and BTB12-600TWRG (STMicroelectronics) are rated for 12A on-state current. These are suitable for applications where the full 15A capacity is not required.

Category 3 - Higher Current Rating (16A): BTA316-600D,127 (WeEn Semiconductors) is rated for 16A on-state current, providing additional current margin for demanding applications.

Parameter Comparison

Engineering Selection Recommendations

MAC15MG (onsemi) is the primary substitute for direct replacement. It maintains the same 15A current rating and 600V voltage specification as the MAC15SMG. Both components are manufactured by onsemi. The MAC15MG is Active status and supports an extended operating temperature range to 125°C. The primary difference is the gate trigger current specification (35 mA versus 5 mA), which reflects a transition from Logic-Sensitive Gate to Standard gate type classification.

BTA12-600TWRG (STMicroelectronics) and BTB12-600TWRG (STMicroelectronics) are suitable for applications where 12A on-state current is sufficient. Both maintain the Logic-Sensitive Gate classification and 5 mA gate trigger current specification. BTA12-600TWRG is packaged in Tube format, while BTB12-600TWRG is also Tube packaged. Both are ROHS3 Compliant and support extended temperature operation to 125°C.

BTB12-600TW3G (Littelfuse Inc.) provides a 12A alternative with Logic-Sensitive Gate characteristics and identical gate trigger specifications. This component is ROHS3 Compliant and maintains the -40°C ~ 110°C operating temperature range matching the original MAC15SMG.

BTA316-600D,127 (WeEn Semiconductors) offers the highest current rating at 16A, providing additional margin for high-current applications. This component maintains Logic-Sensitive Gate classification and is RoHS Compliant. The operating temperature range extends to 125°C.

All substitute parts share the same TO-220-3 package configuration and 600V off-state voltage rating. Selection should be based on specific application current requirements and compliance certifications needed for the end application.

Frequently Asked Questions (FAQ)

Q: Can MAC15MG directly replace MAC15SMG in all applications?

A: MAC15MG shares the same current and voltage ratings as MAC15SMG and uses identical TO-220-3 packaging. The primary difference is the gate trigger current specification (35 mA versus 5 mA), indicating a change from Logic-Sensitive Gate to Standard gate type. Applications requiring sensitive gate triggering characteristics may require circuit evaluation.

Q: What is the difference between Logic-Sensitive Gate and Standard TRIAC types?

A: Logic-Sensitive Gate TRIACs require lower gate trigger current (typically 5 mA) compared to Standard TRIACs (typically 35 mA or higher). This parameter is provided in the component specifications and determines gate drive circuit requirements.

Q: Can I use a 12A rated TRIAC in place of the 15A MAC15SMG?

A: BTA12-600TWRG, BTB12-600TW3G, and BTB12-600TWRG are rated for 12A on-state current. These substitutes are suitable only if the application current requirement does not exceed 12A. The 600V voltage rating and TO-220-3 package remain compatible.

Q: Are all substitute parts RoHS compliant?

A: BTA12-600TWRG, BTB12-600TW3G, and BTB12-600TWRG are ROHS3 Compliant. BTA316-600D,127 is RoHS Compliant. MAC15MG compliance status is not specified in the provided data.

Q: What is the operating temperature difference between MAC15SMG and its substitutes?

A: MAC15SMG operates from -40°C to 110°C. MAC15MG, BTA12-600TWRG, BTB12-600TWRG, and BTA316-600D,127 extend the upper limit to 125°C. BTB12-600TW3G maintains the -40°C to 110°C range matching the original part.

Q: Do all substitute parts use the same TO-220 package?

A: All substitute parts use TO-220-3 package configuration. Some variants specify TO-220AB as the supplier device package, which is mechanically and electrically compatible with standard TO-220 through-hole mounting.