Equivalent & Substitute Parts for MAC15-8G TRIAC 600V 15A TO-220AB

Part Overview

The MAC15-8G is a standard TRIAC manufactured by Littelfuse Inc., rated for 600V off-state voltage and 15A on-state current in a TO-220AB through-hole package. This component is Active in product status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching or compatible electrical and mechanical parameters within the thyristor category, enabling component selection flexibility for circuit design and procurement requirements.

Key Parameters

Parameter	MAC15-8G
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	15 A
Voltage - Gate Trigger (Vgt) (Max)	2 V
Current - Gate Trigger (Igt) (Max)	50 mA
Current - Hold (Ih) (Max)	40 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	150A @ 60Hz
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	TO-220-3
Mounting Type	Through Hole
Triac Type	Standard
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Voltage - Off State: Must equal or exceed 600V
Current - On State (It (RMS)): Must equal or exceed 15A
Package / Case: Must be TO-220-3 for mechanical compatibility
Mounting Type: Must be Through Hole
Configuration: Must be Single
RoHS Status: Must maintain ROHS3 compliance

Substitute parts are grouped into two categories:

Direct Parametric Equivalents: Parts with identical or superior electrical ratings and the same package type. MAC15A8G meets all criteria as a parametric equivalent from Littelfuse Inc.

Functional Substitutes with Reduced Current Rating: Parts rated at 12A or 16A on-state current with 600V off-state voltage in TO-220-3 packages. These include AVS12CB, BTA12-600CWRG, BTB12-600CWRG, T1235H-6I, T1235H-6T (12A variants) and BTB16-600BWRG, T1610H-6T (16A variants). These are suitable for applications where the full 15A rating is not required.

Parameter Comparison

Parameter	MAC15-8G	MAC15A8G	AVS12CB	BTA12-600CWRG	BTB12-600CWRG	BTB16-600BWRG	T1235H-6I	T1235H-6T	T1610H-6T
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Voltage - Off State	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	15 A	15 A	12 A	12 A	12 A	16 A	12 A	12 A	16 A
Voltage - Gate Trigger (Vgt) (Max)	2 V	2 V	Not specified	1.3 V	1.3 V	1.3 V	1 V	1 V	1.3 V
Current - Gate Trigger (Igt) (Max)	50 mA	50 mA	Not specified	35 mA	35 mA	50 mA	35 mA	35 mA	10 mA
Current - Hold (Ih) (Max)	40 mA	40 mA	Not specified	35 mA	35 mA	50 mA	35 mA	35 mA	15 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	150A @ 60Hz	150A @ 60Hz	100A, 105A	120A, 126A	120A, 126A	160A, 168A	120A, 126A	120A, 126A	160A, 168A
Operating Temperature	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	0°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Triac Type	Standard	Standard	Internally Triggered	Alternistor - Snubberless	Alternistor - Snubberless	Alternistor - Snubberless	Alternistor - Snubberless	Alternistor - Snubberless	Logic - Sensitive Gate
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

MAC15A8G is the primary parametric equivalent, offering identical electrical specifications and operating temperature range as the MAC15-8G. Both are standard TRIAC types from Littelfuse Inc. with ROHS3 compliance. This part is suitable for direct replacement in all applications.

BTB16-600BWRG and T1610H-6T provide 16A on-state current capability, exceeding the MAC15-8G rating. Both maintain 600V off-state voltage, TO-220-3 package compatibility, and ROHS3 compliance. BTB16-600BWRG is an Alternistor - Snubberless variant with standard gate trigger specifications. T1610H-6T is a Logic - Sensitive Gate variant with reduced gate trigger current (10 mA) and hold current (15 mA), suitable for low-power gate drive circuits. Both support extended operating temperature to 150°C.

12A Current Rating Substitutes (AVS12CB, BTA12-600CWRG, BTB12-600CWRG, T1235H-6I, T1235H-6T) are applicable only for applications where continuous on-state current does not exceed 12A. All maintain 600V off-state voltage and TO-220-3 package compatibility with ROHS3 compliance. AVS12CB is an Internally Triggered variant. BTA12-600CWRG and BTB12-600CWRG are Alternistor - Snubberless types with reduced gate trigger voltage (1.3V). T1235H-6I and T1235H-6T are Alternistor - Snubberless variants with further reduced gate trigger voltage (1V) and extended operating temperature to 150°C.

Frequently Asked Questions (FAQ)

Q: Can MAC15A8G replace MAC15-8G directly?

A: Yes. MAC15A8G is a parametric equivalent with identical voltage, current, and temperature ratings. Both are standard TRIAC types in TO-220-3 packages with ROHS3 compliance.

Q: Are 12A-rated TRIACs suitable substitutes for the MAC15-8G?

A: 12A-rated substitutes (AVS12CB, BTA12-600CWRG, BTB12-600CWRG, T1235H-6I, T1235H-6T) are suitable only if the application circuit requires continuous on-state current of 12A or less. If the design requires the full 15A capability, these parts are not appropriate.

Q: What is the difference between Alternistor - Snubberless and Standard TRIAC types?

A: Alternistor - Snubberless TRIACs (BTA12-600CWRG, BTB12-600CWRG, T1235H-6I, T1235H-6T, BTB16-600BWRG) incorporate internal snubber networks to reduce EMI and improve switching characteristics. Standard TRIACs (MAC15-8G, MAC15A8G) do not include this feature. Selection depends on circuit EMI requirements and gate drive characteristics.

Q: What is the advantage of Logic - Sensitive Gate TRIACs like T1610H-6T?

A: Logic - Sensitive Gate variants feature reduced gate trigger current (10 mA for T1610H-6T versus 50 mA for MAC15-8G), enabling direct gate drive from low-power logic circuits without additional driver stages. This reduces component count and power consumption in gate drive circuits.

Q: Can I use a 16A TRIAC in place of a 15A TRIAC?

A: Yes. 16A-rated TRIACs (BTB16-600BWRG, T1610H-6T) have higher current capacity and are suitable for applications designed for 15A operation. The higher rating provides additional margin for transient conditions.

Q: Are all substitute parts available in the same packaging?

A: Yes. All substitute parts listed are available in TO-220-3 packages with through-hole mounting, ensuring mechanical compatibility with MAC15-8G PCB layouts.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, matching the MAC15-8G compliance profile.

Q: What is the operating temperature range difference between MAC15-8G and T1235H-6T?

A: MAC15-8G operates from -40°C to 125°C. T1235H-6T extends the upper limit to 150°C, providing 25°C additional thermal margin for high-temperature applications.

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