MAC16MG TRIAC 600V 16A Equivalent & Substitute Parts

Part Overview

The MAC16MG is a standard TRIAC thyristor manufactured by Littelfuse Inc., rated for 600V off-state voltage and 16A on-state current in a TO-220AB through-hole package. This component is active in production with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching or compatible electrical ratings, package configuration, and thermal operating range to support circuit design flexibility and supply chain continuity.

Key Parameters

Parameter	MAC16MG Value
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	16 A
Voltage - Gate Trigger (Vgt) (Max)	1.5 V
Current - Non Rep. Surge 50, 60Hz (Itsm)	150A @ 60Hz
Current - Gate Trigger (Igt) (Max)	50 mA
Current - Hold (Ih) (Max)	50 mA
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 of the MAC16MG is determined by the following critical parameters:

Voltage Rating (Off State): 600V minimum required
Current Rating (On State): 16A or higher acceptable; lower ratings (12A) represent downrated alternatives
Package Configuration: TO-220-3 through-hole mounting required for mechanical compatibility
Gate Trigger Characteristics: Vgt and Igt values within acceptable operating margins
Operating Temperature Range: Minimum -40°C to 125°C required
Triac Type: Standard, Alternistor (Snubberless), Internally Triggered, or Logic-Sensitive Gate types are functionally distinct but electrically compatible within voltage and current parameters

Substitute parts are grouped into three categories:

Direct Parametric Equivalents: Identical electrical ratings and specifications (MAC16HCMG)
Current-Downrated Substitutes: 12A on-state current with 600V voltage rating (AVS12CB, BTA12-600BRG, BTA12-600BWRG, BTB12-600BRG, BTB12-600BWRG)
Full-Rated Substitutes: 16A on-state current with 600V voltage rating and enhanced surge capability (BTA316-600BT,127, BTB16-600BWRG, T1610H-6T)

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
MAC16MG	Littelfuse Inc.	Standard	600 V	16 A	1.5 V	50 mA	50 mA	150A	-40°C ~ 125°C	TO-220-3
MAC16HCMG	Littelfuse Inc.	Standard	600 V	16 A	1.5 V	50 mA	50 mA	150A	-40°C ~ 125°C	TO-220-3
BTA316-600BT,127	WeEn Semiconductors	Standard	600 V	16 A	1.5 V	50 mA	60 mA	150A	-40°C ~ 150°C	TO-220-3
BTB16-600BWRG	STMicroelectronics	Alternistor - Snubberless	600 V	16 A	1.3 V	50 mA	50 mA	168A	-40°C ~ 125°C	TO-220-3
T1610H-6T	STMicroelectronics	Logic - Sensitive Gate	600 V	16 A	1.3 V	10 mA	15 mA	168A	-40°C ~ 150°C	TO-220-3
AVS12CB	STMicroelectronics	Internally Triggered	600 V	12 A	—	—	—	105A	0°C ~ 125°C	TO-220-3
BTA12-600BRG	STMicroelectronics	Standard	600 V	12 A	1.3 V	50 mA	50 mA	126A	-40°C ~ 125°C	TO-220-3
BTA12-600BWRG	STMicroelectronics	Alternistor - Snubberless	600 V	12 A	1.3 V	50 mA	50 mA	126A	-40°C ~ 125°C	TO-220-3
BTB12-600BRG	STMicroelectronics	Standard	600 V	12 A	1.3 V	50 mA	50 mA	126A	-40°C ~ 125°C	TO-220-3
BTB12-600BWRG	STMicroelectronics	Alternistor - Snubberless	600 V	12 A	1.3 V	50 mA	50 mA	126A	-40°C ~ 125°C	TO-220-3

Engineering Selection Recommendations

Direct Equivalent (Preferred for Drop-In Replacement)

MAC16HCMG from Littelfuse Inc. provides identical electrical and thermal specifications to MAC16MG with higher inventory availability (9950 pcs vs. 5077 pcs). Both parts are active, RoHS3 compliant, and MSL 1 rated. This part is the primary equivalent for direct substitution without circuit redesign.

Full-Rated 16A Alternatives

BTA316-600BT,127 (WeEn Semiconductors) and BTB16-600BWRG (STMicroelectronics) maintain 16A on-state current and 600V voltage rating. BTA316-600BT,127 extends operating temperature to 150°C and provides equivalent surge capability. BTB16-600BWRG features Snubberless (Alternistor) technology with enhanced surge rating (168A) and lower gate trigger voltage (1.3V vs. 1.5V). T1610H-6T offers Logic-Sensitive Gate characteristics with reduced gate trigger current (10mA vs. 50mA) and extended temperature range to 150°C, suitable for low-power gate drive circuits.

Current-Downrated 12A Alternatives

AVS12CB, BTA12-600BRG, BTA12-600BWRG, BTB12-600BRG, and BTB12-600BWRG are suitable only for applications where 12A on-state current is acceptable. These parts maintain 600V voltage rating and TO-220-3 package compatibility. AVS12CB is internally triggered and operates from 0°C to 125°C. Standard and Snubberless variants from STMicroelectronics provide surge ratings of 120A to 126A. Selection among 12A alternatives depends on gate drive requirements and snubberless circuit benefits.

All substitute parts are active products with RoHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility with MAC16MG.

Frequently Asked Questions (FAQ)

Q: Can MAC16HCMG replace MAC16MG directly in the circuit?

A: Yes. MAC16HCMG is a parametric equivalent with identical voltage, current, gate trigger, and thermal specifications. No circuit modifications are required. Both are standard TRIACs in TO-220-3 packages from Littelfuse Inc.

Q: What is the difference between Standard, Alternistor (Snubberless), and Logic-Sensitive Gate TRIAC types?

A: Triac type designates internal circuit architecture. Standard TRIACs (MAC16MG, BTA316-600BT,127) are conventional designs. Alternistor/Snubberless types (BTB16-600BWRG, BTA12-600BWRG) provide improved EMI performance and reduced snubber circuit requirements. Logic-Sensitive Gate types (T1610H-6T) feature reduced gate trigger current (10mA vs. 50mA) for direct logic-level gate drive. All three types are electrically compatible at the specified voltage and current ratings.

Q: Can I use a 12A TRIAC (AVS12CB, BTA12-600BRG) instead of the 16A MAC16MG?

A: Only if your circuit load current does not exceed 12A RMS. The 12A parts are downrated alternatives and will not safely handle 16A continuous current. Verify actual circuit current requirements before substitution.

Q: What does "Snubberless" mean, and do I need to modify my circuit to use BTB16-600BWRG?

A: Snubberless (Alternistor) TRIACs have improved dV/dt immunity and reduced EMI, allowing operation without external snubber networks in many applications. No mandatory circuit modifications are required; however, snubber removal may be possible depending on your specific application. Consult device datasheets for snubber design guidance.

Q: Are all substitute parts available in the same TO-220-3 package?

A: Yes. All listed substitute parts use TO-220-3 through-hole package configuration, ensuring mechanical and thermal interface compatibility with MAC16MG. Mounting and PCB layout remain unchanged.

Q: What is the significance of gate trigger voltage (Vgt) differences between parts?

A: Vgt is the minimum gate voltage required to trigger the TRIAC. MAC16MG specifies 1.5V maximum; most STMicroelectronics substitutes specify 1.3V maximum. Lower Vgt values allow triggering with lower gate drive voltage, reducing gate circuit power consumption. Both values are compatible with standard gate drive circuits; lower Vgt provides design margin.

Q: Do all substitute parts meet RoHS3 and REACH compliance?

A: Yes. All listed substitute parts are RoHS3 compliant and REACH unaffected or compliant, matching MAC16MG regulatory status. MSL 1 (unlimited) moisture sensitivity applies to all parts, ensuring equivalent handling and storage requirements.

Q: What is the operating temperature range difference, and does it affect my design?

A: MAC16MG operates -40°C to 125°C. BTA316-600BT,127 and T1610H-6T extend to 150°C maximum junction temperature. AVS12CB operates 0°C to 125°C (narrower low-temperature range). Select based on your application's thermal environment. Extended temperature range provides design margin for high-ambient or high-power applications.

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