MAC4DHMT4G Equivalent & Substitute Parts

Part Overview

The MAC4DHMT4G is a Logic-Sensitive Gate TRIAC manufactured by Littelfuse, rated for 600 V off-state voltage and 4 A on-state current in a Surface Mount TO-252 (DPAK) package. This component is Active in product status and widely used in AC switching applications requiring sensitive gate triggering. Substitute parts are identified based on matching electrical ratings, package compatibility, and operational parameters to ensure functional equivalence in circuit designs.

Key Parameters

Parameter	MAC4DHMT4G
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	4 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Gate Trigger (Igt) (Max)	5 mA
Current - Hold (Ih) (Max)	15 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	40 A @ 60Hz
Operating Temperature Range	-40°C ~ 110°C (TJ)
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the MAC4DHMT4G are grouped based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

Voltage - Off State: 600 V (mandatory)
Current - On State (It (RMS)) (Max): 4 A (mandatory for direct substitution)
Triac Type: Logic - Sensitive Gate
Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type: Surface Mount
Configuration: Single

Secondary Compatibility Parameters:

Voltage - Gate Trigger (Vgt) (Max): 1.3 V
Current - Gate Trigger (Igt) (Max): 5 mA to 10 mA range acceptable
Current - Hold (Ih) (Max): 10 mA to 15 mA range acceptable
Current - Non Rep. Surge 50, 60Hz (Itsm): 30 A minimum

Parts with higher on-state current ratings (8 A) are listed as available alternatives but require circuit design verification for current-limiting applications.

Parameter Comparison

Part Number	Manufacturer	Voltage - Off State	Current - On State (It (RMS)) (Max)	Voltage - Gate Trigger (Vgt) (Max)	Current - Gate Trigger (Igt) (Max)	Current - Hold (Ih) (Max)	Current - Non Rep. Surge (Itsm)	Operating Temperature	Package	Packaging Type
MAC4DHMT4G	Littelfuse	600 V	4 A	1.3 V	5 mA	15 mA	40 A @ 60Hz	-40°C ~ 110°C	TO-252-3, DPAK	Tape & Reel (TR)
L6004D6RP	Littelfuse Inc.	600 V	4 A	1.3 V	5 mA	10 mA	33 A, 40 A	-40°C ~ 110°C	TO-252-3, DPAK	Tape & Reel (TR)
L6004D8RP	Littelfuse Inc.	600 V	4 A	1.3 V	10 mA	15 mA	33 A, 40 A	-40°C ~ 110°C	TO-252-3, DPAK	Tape & Reel (TR)
T405Q-600B-TR	STMicroelectronics	600 V	4 A	1.3 V	5 mA	10 mA	35 A, 38 A	-40°C ~ 125°C	TO-252-3, DPAK	Cut Tape (CT) & Digi-Reel®
T410-600B	STMicroelectronics	600 V	4 A	1.3 V	10 mA	15 mA	30 A, 31 A	-40°C ~ 125°C	TO-252-3, DPAK	Tube
T410-600B-TR	STMicroelectronics	600 V	4 A	1.3 V	10 mA	15 mA	30 A, 31 A	-40°C ~ 125°C	TO-252-3, DPAK	Cut Tape (CT) & Digi-Reel®
T810-600B	STMicroelectronics	600 V	8 A	1.3 V	10 mA	15 mA	80 A, 84 A	-40°C ~ 125°C	TO-252-3, DPAK	Tube
T810-600B-TR	STMicroelectronics	600 V	8 A	1.3 V	10 mA	15 mA	80 A, 84 A	-40°C ~ 125°C	TO-252-3, DPAK	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Direct Substitutes (4 A On-State Current):

L6004D6RP and L6004D8RP are Littelfuse products with identical voltage and current ratings to the MAC4DHMT4G. Both maintain the same 600 V off-state voltage and 4 A on-state current. L6004D6RP has a lower hold current (10 mA vs. 15 mA), while L6004D8RP matches the hold current specification. Both are ROHS3 compliant and suitable for direct replacement in existing designs.

T405Q-600B-TR, T410-600B, T410-600B-TR are STMicroelectronics equivalents with matching 600 V and 4 A ratings. These parts extend the operating temperature range to -40°C ~ 125°C compared to the MAC4DHMT4G's -40°C ~ 110°C, providing enhanced thermal performance. All are ROHS3 compliant. T405Q-600B-TR and T410-600B-TR are supplied in tape and reel packaging, while T410-600B is supplied in tube packaging.

Higher Current Alternatives (8 A On-State Current):

T810-600B and T810-600B-TR are STMicroelectronics TRIACs with doubled on-state current (8 A) while maintaining the same 600 V off-state voltage. These parts are suitable only for applications where the circuit design accommodates higher current capacity. Both extend the operating temperature range to -40°C ~ 125°C and are ROHS3 compliant. T810-600B-TR is supplied in tape and reel packaging with significantly higher inventory availability (123,525 pcs).

All substitute parts maintain the same TO-252-3 DPAK package configuration and are surface mount compatible with the original design footprint.

Frequently Asked Questions (FAQ)

Q: Can L6004D6RP replace MAC4DHMT4G directly?

A: Yes. L6004D6RP matches the critical electrical parameters: 600 V off-state voltage, 4 A on-state current, 1.3 V gate trigger voltage, and TO-252-3 DPAK package. The hold current is 10 mA versus 15 mA in the original part, which is within acceptable operating margins for most applications.

Q: What is the difference between T410-600B and T410-600B-TR?

A: Both parts are electrically identical STMicroelectronics TRIACs with 600 V, 4 A ratings and matching electrical parameters. The difference is packaging: T410-600B is supplied in tube packaging, while T410-600B-TR is supplied in cut tape and Digi-Reel format. Selection depends on assembly line requirements and inventory management preferences.

Q: Can T810-600B substitute for MAC4DHMT4G?

A: T810-600B is electrically compatible in terms of voltage (600 V) and package (TO-252-3 DPAK), but has double the on-state current rating (8 A vs. 4 A). This part is suitable only if the circuit design permits higher current capacity. Applications with current-limiting resistors or circuits designed for 4 A operation should use 4 A rated parts instead.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant, matching the compliance status of the MAC4DHMT4G.

Q: What is the temperature operating range difference?

A: MAC4DHMT4G operates from -40°C to 110°C. Littelfuse alternatives (L6004D6RP, L6004D8RP) maintain this range. STMicroelectronics parts (T405Q-600B-TR, T410-600B, T410-600B-TR, T810-600B, T810-600B-TR) extend the upper limit to 125°C, providing 15°C additional thermal margin.

Q: Which substitute has the highest inventory availability?

A: T810-600B-TR has the highest inventory at 123,525 pcs. For 4 A rated parts, T405Q-600B-TR has 50,300 pcs available.

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