MAC15MG TRIAC 600V 15A TO-220AB Equivalent & Substitute Parts

Part Overview

The MAC15MG is a standard TRIAC thyristor manufactured by Littelfuse Inc., rated for 600V off-state voltage and 15A on-state current in a Through Hole TO-220AB package. This component is Active in product status with 1796 units in stock. Substitute parts are necessary when the MAC15MG is unavailable, when alternative thermal or gate trigger characteristics are required for specific circuit designs, or when alternative TRIAC types (Internally Triggered or Alternistor Snubberless) offer performance advantages for the application.

Key Parameters

Parameter	MAC15MG Value
Manufacturer	Littelfuse Inc.
Category	Thyristors
Triac Type	Standard
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)	35 mA
Current - Hold (Ih) (Max)	40 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	150A @ 60Hz
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-220-3
Configuration	Single
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of the MAC15MG is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Voltage - Off State: 600 V (all substitutes must match)
Package / Case: TO-220-3 (all substitutes must match)
Mounting Type: Through Hole (all substitutes must match)
Configuration: Single (all substitutes must match)

Current Rating Consideration: The MAC15MG is rated for 15A on-state current. Substitute parts with lower current ratings (6A, 8A, 10A, 12A) are acceptable for applications requiring less than or equal to their rated current. Parts with higher current ratings are not available in this substitute list.

TRIAC Type Variation: Substitutes include Standard TRIACs, Internally Triggered TRIACs, and Alternistor Snubberless TRIACs. Each type offers different gate trigger and hold current characteristics, affecting circuit design requirements.

Compliance & Environmental: All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 rating, ensuring regulatory and environmental compatibility.

Parameter Comparison

Part Number	Manufacturer	Triac Type	Voltage - Off State	Current - On State (Max)	Vgt (Max)	Igt (Max)	Ih (Max)	Itsm (60Hz)	Operating Temp	Package
MAC15MG	Littelfuse Inc.	Standard	600 V	15 A	1.5 V	35 mA	40 mA	150A	-40°C ~ 125°C	TO-220-3
AVS12CB	STMicroelectronics	Internally Triggered	600 V	12 A	—	—	—	100A, 105A	0°C ~ 125°C	TO-220-3
BTA12-600CWRG	STMicroelectronics	Alternistor - Snubberless	600 V	12 A	1.3 V	35 mA	35 mA	120A, 126A	-40°C ~ 125°C	TO-220-3
BTB06-600BWRG	STMicroelectronics	Alternistor - Snubberless	600 V	6 A	1.3 V	50 mA	50 mA	60A, 63A	-40°C ~ 125°C	TO-220-3
BTB08-600BRG	STMicroelectronics	Standard	600 V	8 A	1.3 V	50 mA	50 mA	80A, 84A	-40°C ~ 125°C	TO-220-3
BTB08-600BWRG	STMicroelectronics	Alternistor - Snubberless	600 V	8 A	1.3 V	50 mA	50 mA	80A, 84A	-40°C ~ 125°C	TO-220-3
BTB08-600CWRG	STMicroelectronics	Alternistor - Snubberless	600 V	8 A	1.3 V	35 mA	35 mA	80A, 84A	-40°C ~ 125°C	TO-220-3
BTB10-600BWRG	STMicroelectronics	Alternistor - Snubberless	600 V	10 A	1.3 V	50 mA	50 mA	100A, 105A	-40°C ~ 125°C	TO-220-3
BTB12-600BRG	STMicroelectronics	Standard	600 V	12 A	1.3 V	50 mA	50 mA	120A, 126A	-40°C ~ 125°C	TO-220-3
BTB12-600BWRG	STMicroelectronics	Alternistor - Snubberless	600 V	12 A	1.3 V	50 mA	50 mA	120A, 126A	-40°C ~ 125°C	TO-220-3
BTB12-600CWRG	STMicroelectronics	Alternistor - Snubberless	600 V	12 A	1.3 V	35 mA	35 mA	120A, 126A	-40°C ~ 125°C	TO-220-3

Engineering Selection Recommendations

Direct Current Rating Substitutes (12A Rating): BTA12-600CWRG, BTB12-600BRG, BTB12-600BWRG, and BTB12-600CWRG are suitable for applications where 12A on-state current is sufficient. These parts maintain 600V off-state voltage and TO-220-3 packaging. BTA12-600CWRG and BTB12-600CWRG offer lower gate trigger and hold currents (35 mA each), while BTB12-600BRG and BTB12-600BWRG require 50 mA gate trigger current. All maintain ROHS3 compliance and -40°C to 125°C operating temperature range.

Lower Current Rating Substitutes (6A, 8A, 10A): BTB06-600BWRG (6A), BTB08-600BRG, BTB08-600BWRG, BTB08-600CWRG (8A), and BTB10-600BWRG (10A) are applicable only for circuits designed for their respective current ratings. These parts are not suitable for applications requiring the full 15A capacity of the MAC15MG.

Internally Triggered Alternative: AVS12CB from STMicroelectronics is an Internally Triggered TRIAC rated for 12A. This type eliminates the need for external gate drive circuitry in certain applications. Operating temperature range is 0°C to 125°C (narrower than MAC15MG). Gate trigger parameters are not specified for this part type.

Compliance & Availability: All substitute parts are Active in product status, ROHS3 compliant, REACH Unaffected, and carry MSL 1 rating. Inventory availability ranges from 1150 to 15400 units across the substitute options.

Frequently Asked Questions (FAQ)

Q: Can I use a lower current-rated TRIAC as a substitute for the MAC15MG? A: No. The MAC15MG is rated for 15A on-state current. Substitutes with lower ratings (6A, 8A, 10A, 12A) are only suitable for applications requiring current less than or equal to their rated value. Using an undersized TRIAC in a 15A application will result in component failure.

Q: What is the difference between Standard, Internally Triggered, and Alternistor Snubberless TRIACs? A: Standard TRIACs require external gate drive circuitry. Internally Triggered TRIACs (AVS12CB) integrate gate drive functionality, simplifying circuit design. Alternistor Snubberless TRIACs (BTA and BTB series with "W" or "C" suffix) are optimized for reduced EMI and improved switching characteristics without requiring external snubber networks.

Q: Are all substitute parts compatible with the MAC15MG footprint? A: Yes. All substitute parts use the TO-220-3 package with Through Hole mounting, ensuring mechanical and electrical footprint compatibility on PCBs designed for the MAC15MG.

Q: What is the impact of different gate trigger voltage (Vgt) specifications? A: The MAC15MG specifies Vgt (Max) of 1.5V, while most STMicroelectronics substitutes specify 1.3V. Lower Vgt values require less gate voltage to trigger the TRIAC, potentially affecting gate drive circuit design. AVS12CB does not specify Vgt as it is Internally Triggered.

Q: Can I use BTA12-600CWRG as a direct replacement for MAC15MG? A: BTA12-600CWRG is suitable only for applications requiring 12A or less on-state current. It maintains 600V off-state voltage, TO-220-3 packaging, and -40°C to 125°C operating temperature. Gate trigger and hold currents are 35 mA each, matching the MAC15MG specification. However, the 3A current reduction must be verified against circuit requirements.

Q: What is the operating temperature range difference between MAC15MG and AVS12CB? A: MAC15MG operates from -40°C to 125°C, while AVS12CB operates from 0°C to 125°C. AVS12CB has a narrower lower temperature limit, making it unsuitable for applications requiring operation below 0°C.

Q: Are all substitute parts RoHS and REACH compliant? A: Yes. All substitute parts listed are ROHS3 compliant and REACH Unaffected, matching the environmental and regulatory status of the MAC15MG.

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