MAC4DHM-1G Equivalent & Substitute Parts

Part Overview

The MAC4DHM-1G is a logic-sensitive gate TRIAC manufactured by Littelfuse Inc., rated for 600 V off-state voltage and 4 A on-state current in a surface mount TO-252 (DPAK) package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. Substitute parts maintain the same electrical specifications while offering alternative packaging options (through-hole TO-251 variants) and enhanced availability through active product status alternatives.

Key Parameters

Parameter	Value
Manufacturer	Littelfuse Inc.
Part Number	MAC4DHM-1G
Category	Thyristors
Triac Type	Logic - Sensitive Gate
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
Operating Temperature Range	-40°C to 110°C (TJ)
Mounting Type	Surface Mount
Package	TO-252-3 (DPAK)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MAC4DHM-1G is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Off State: 600 V (exact match required)
Current - On State (It RMS Max): 4 A (exact match required)
Voltage - Gate Trigger (Vgt Max): 1.3 V (exact match required)
Triac Type: Logic - Sensitive Gate (exact match required)
Operating Temperature Range: -40°C to 110°C minimum (equal or extended range acceptable)
Configuration: Single (exact match required)

Secondary Considerations:

Mounting Type: Surface mount (MAC4DHM-1G) vs. through-hole (substitute options)
Current - Gate Trigger (Igt Max): Variations permitted within specified ranges
Current - Hold (Ih Max): Variations permitted within specified ranges
Product Status: Active status preferred for long-term availability

Substitute parts L6004V6TP, L6004V3TP, L6004V5TP, and Q6004V3TP maintain all primary electrical specifications while offering through-hole TO-251 packaging. Parts L6006V5TP, L6006V6TP, L6006V8TP, and L6008V6TP, L6008V8TP exceed the 4 A current rating and are suitable only when higher current capacity is acceptable in the application.

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)	Operating Temperature	Mounting Type	Package	Product Status
MAC4DHM-1G	Littelfuse Inc.	600 V	4 A	1.3 V	5 mA	15 mA	-40°C to 110°C	Surface Mount	TO-252 (DPAK)	Obsolete
L6004V6TP	Littelfuse Inc.	600 V	4 A	1.3 V	5 mA	10 mA	-40°C to 110°C	Through Hole	TO-251	Active
L6004V3TP	Littelfuse Inc.	600 V	4 A	1.3 V	3 mA	5 mA	-40°C to 110°C	Through Hole	TO-251AA	Active
L6004V5TP	Littelfuse Inc.	600 V	4 A	1.3 V	5 mA	10 mA	-40°C to 110°C	Through Hole	TO-251	Active
L6004V8TP	Littelfuse Inc.	600 V	4 A	1.3 V	10 mA	15 mA	-40°C to 110°C	Through Hole	TO-251	Active
Q6004V3TP	Littelfuse	600 V	4 A	1.3 V	10 mA	20 mA	-40°C to 125°C	Through Hole	TO-251	Active
L6006V5TP	Littelfuse Inc.	600 V	6 A	1.3 V	5 mA	10 mA	-40°C to 110°C	Through Hole	TO-251	Active
L6006V6TP	Littelfuse Inc.	600 V	6 A	1.3 V	5 mA	10 mA	-40°C to 110°C	Through Hole	TO-251	Active
L6006V8TP	Littelfuse Inc.	600 V	6 A	1.3 V	10 mA	20 mA	-40°C to 110°C	Through Hole	TO-251	Active
L6008V6TP	Littelfuse Inc.	600 V	8 A	1.3 V	5 mA	10 mA	-40°C to 110°C	Through Hole	TO-251	Active
L6008V8TP	Littelfuse Inc.	600 V	8 A	1.3 V	10 mA	20 mA	-40°C to 110°C	Through Hole	TO-251	Active

Engineering Selection Recommendations

Direct Electrical Equivalents (4 A Rating):

L6004V6TP, L6004V5TP, and L6004V8TP are direct electrical equivalents to MAC4DHM-1G with identical 600 V, 4 A, and 1.3 V gate trigger specifications. These parts are manufactured by Littelfuse Inc. and carry active product status, ensuring long-term availability. All three maintain ROHS3 compliance and operate within the -40°C to 110°C temperature range. The primary difference is mounting type (through-hole TO-251 versus surface mount TO-252 DPAK) and gate trigger current variations. L6004V6TP and L6004V5TP feature 5 mA gate trigger current matching the original specification, while L6004V8TP provides 10 mA gate trigger current with corresponding hold current of 15 mA.

L6004V3TP offers the lowest gate trigger current at 3 mA and hold current at 5 mA, suitable for applications requiring minimal gate drive power. This part is available in TO-251AA packaging and maintains active status.

Q6004V3TP provides an extended operating temperature range of -40°C to 125°C compared to the standard -40°C to 110°C, offering thermal margin for high-temperature environments. This part is manufactured by Littelfuse and maintains 4 A current rating with active product status.

Higher Current Alternatives (6 A and 8 A Ratings):

L6006V5TP, L6006V6TP, L6006V8TP, L6008V6TP, and L6008V8TP exceed the 4 A current specification with 6 A and 8 A ratings respectively. These parts are suitable only when the application circuit can accommodate higher current capacity without thermal or design constraints. All maintain 600 V voltage rating, 1.3 V gate trigger voltage, and active product status with ROHS3 compliance.

Compliance and Availability:

All substitute parts listed carry ROHS3 compliance matching the original MAC4DHM-1G specification. All recommended 4 A equivalents maintain active product status, ensuring continued manufacturing and supply chain support. Inventory levels across substitute options range from 756 to 2895 pieces, providing adequate stock for production requirements.

Frequently Asked Questions (FAQ)

Q: Can L6004V6TP directly replace MAC4DHM-1G in existing designs?

A: L6004V6TP maintains identical electrical specifications (600 V, 4 A, 1.3 V gate trigger) and is electrically compatible. The primary difference is packaging: MAC4DHM-1G uses surface mount TO-252 (DPAK) while L6004V6TP uses through-hole TO-251. PCB layout and mounting method must be adapted accordingly. Both parts are ROHS3 compliant and operate within -40°C to 110°C.

Q: What is the difference between L6004V3TP, L6004V5TP, and L6004V8TP?

A: All three maintain 600 V, 4 A, and 1.3 V specifications. Differences exist in gate trigger current (Igt) and hold current (Ih): L6004V3TP features 3 mA Igt and 5 mA Ih; L6004V5TP and L6004V6TP feature 5 mA Igt and 10 mA Ih; L6004V8TP features 10 mA Igt and 15 mA Ih. Selection depends on gate drive circuit requirements and available drive current.

Q: Can 6 A or 8 A rated parts substitute for the 4 A MAC4DHM-1G?

A: L6006 and L6008 series parts are not direct substitutes due to higher current ratings. These parts are suitable only when the application circuit design permits higher current capacity. Using higher-rated parts in circuits designed for 4 A maximum may result in unintended circuit behavior or thermal issues.

Q: Why is MAC4DHM-1G listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Littelfuse Inc. Active substitute options (L6004V series and Q6004V3TP) provide equivalent electrical performance with continued manufacturing support and availability.

Q: Does Q6004V3TP offer advantages over L6004 series parts?

A: Q6004V3TP extends the operating temperature range to -40°C to 125°C compared to -40°C to 110°C for L6004 series. This provides additional thermal margin for high-temperature applications. Gate trigger current is 10 mA with 20 mA hold current. Selection depends on specific temperature requirements and gate drive circuit design.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance matching the original MAC4DHM-1G specification, ensuring regulatory compliance for new designs and production.

Q: What packaging options are available for 4 A equivalents?

A: L6004V3TP uses TO-251AA packaging with short leads. L6004V6TP, L6004V5TP, and L6004V8TP use TO-251 (V-Pak/I-Pak) packaging. Q6004V3TP uses TO-251 (V-Pak/I-Pak) packaging. All are through-hole variants suitable for PCB mounting in through-hole applications.

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