MAC08MT1 TRIAC Equivalent & Substitute Parts

Part Overview

The MAC08MT1 is a logic-sensitive gate TRIAC rated for 600 V off-state voltage and 800 mA on-state current in a surface mount SOT-223 package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The MAC08MT1 serves as a solid-state AC switch suitable for applications requiring low gate trigger current and voltage. Substitution is driven by product lifecycle management and the need for active, supported alternatives that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	800 mA
Voltage - Gate Trigger (Vgt) (Max)	2 V
Current - Gate Trigger (Igt) (Max)	10 mA
Current - Hold (Ih) (Max)	5 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	8 A @ 60Hz
Configuration	Single
Mounting Type	Surface Mount
Package / Case	TO-261-4, TO-261AA
Supplier Device Package	SOT-223
Triac Type	Logic - Sensitive Gate

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following electrical and mechanical parameters:

Voltage - Off State: 600 V (exact match required)
Current - On State (It (RMS)) (Max): 800 mA minimum
Triac Type: Logic - Sensitive Gate
Configuration: Single
Mounting Type: Surface Mount
Package / Case: TO-261-4, TO-261AA
Supplier Device Package: SOT-223

Substitute parts must maintain compatibility across these parameters. Gate trigger voltage (Vgt), gate trigger current (Igt), and hold current (Ih) may vary within acceptable design margins, provided they do not exceed the original specifications or create functional incompatibility in the target application.

Parameter Comparison

Parameter	MAC08MT1 (onsemi)	MAC08MT1G (Littelfuse)	LX807MTRP (Littelfuse)	Z00607MN 5AA4 (STMicroelectronics)	Z0109MN,135 (WeEn)
Voltage - Off State	600 V	600 V	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	800 mA	800 mA	800 mA	800 mA	1 A
Voltage - Gate Trigger (Vgt) (Max)	2 V	2 V	1.3 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	10 mA	10 mA	5 mA	5 mA	10 mA
Current - Hold (Ih) (Max)	5 mA	5 mA	5 mA	5 mA	10 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	8 A @ 60Hz	8 A @ 60Hz	8 A, 9.5 A	9 A, 9.5 A	8 A, 8.5 A
Configuration	Single	Single	Single	Single	Single
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-261-4, TO-261AA	TO-261-4, TO-261AA	TO-261-4, TO-261AA	TO-261-4, TO-261AA	TO-261-4, TO-261AA
Supplier Device Package	SOT-223	SOT-223	SOT-223	SOT-223	SC-73
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

MAC08MT1G (Littelfuse Inc.) is the primary direct substitute. It maintains identical electrical specifications and packaging while offering active product status and ROHS3 compliance. This part is recommended for designs requiring exact parameter matching and regulatory compliance.

LX807MTRP (Littelfuse Inc.) and Z00607MN 5AA4 (STMicroelectronics) are functionally equivalent alternatives with lower gate trigger voltage (1.3 V vs. 2 V) and reduced gate trigger current (5 mA vs. 10 mA). These characteristics represent improved gate sensitivity and may reduce gate drive circuit complexity. Both parts are ROHS3 compliant and actively supported.

Z0109MN,135 (WeEn Semiconductors) offers higher on-state current (1 A vs. 800 mA) and operates at a higher maximum junction temperature (125°C). This part uses an SC-73 package variant rather than standard SOT-223, requiring PCB layout verification. It is RoHS compliant and actively supported.

All substitute parts maintain 600 V off-state voltage, single configuration, and surface mount technology. Selection should prioritize product status (active vs. obsolete), compliance certifications, and package compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can MAC08MT1G replace MAC08MT1 directly?

A: Yes. MAC08MT1G maintains identical electrical specifications (600 V, 800 mA, 2 V gate trigger voltage, 10 mA gate trigger current) and packaging (SOT-223). It is the direct equivalent with active product status and ROHS3 compliance.

Q: What is the difference between MAC08MT1G and LX807MTRP?

A: Both are 600 V, 800 mA TRIACs in SOT-223 packages. LX807MTRP has lower gate trigger voltage (1.3 V vs. 2 V) and lower gate trigger current (5 mA vs. 10 mA), requiring less gate drive power. Packaging differs: MAC08MT1G is supplied in Cut Tape & Digi-Reel, while LX807MTRP is supplied in Tape & Reel.

Q: Is Z0109MN,135 compatible with MAC08MT1?

A: Z0109MN,135 is functionally compatible but not identical. It offers higher on-state current (1 A vs. 800 mA) and uses an SC-73 package instead of standard SOT-223. PCB layout verification is required before substitution.

Q: Why do some substitutes have lower gate trigger voltage?

A: Lower gate trigger voltage (1.3 V vs. 2 V) indicates improved gate sensitivity. This reduces the gate drive circuit power requirement but does not affect primary switching characteristics (600 V, 800 mA). Designs must verify gate drive circuit compatibility.

Q: Are all substitutes RoHS compliant?

A: MAC08MT1G, LX807MTRP, and Z00607MN 5AA4 are ROHS3 compliant. Z0109MN,135 is RoHS compliant. The original MAC08MT1 is RoHS non-compliant. Regulatory requirements should guide substitute selection.

Q: What packaging options are available?

A: MAC08MT1G is supplied in Cut Tape & Digi-Reel. LX807MTRP and Z00607MN 5AA4 are supplied in Tape & Reel. Z0109MN,135 uses SC-73 package. Verify packaging compatibility with assembly equipment and procurement workflows.

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