MAC4DLM-001 Equivalent & Substitute Parts

Part Overview

The MAC4DLM-001 is a Logic - Sensitive Gate TRIAC rated for 600 V off-state voltage and 4 A on-state current (RMS), manufactured by onsemi in TO-251-3 Short Leads (IPAK) packaging. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates across a temperature range of -40°C to 110°C and is RoHS non-compliant.

Key Parameters

Parameter	Value
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)	3 mA
Current - Hold (Ih) (Max)	15 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	40 A @ 60Hz
Operating Temperature	-40°C ~ 110°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA
Configuration	Single

Substitute Part Grouping Explanation

Substitution of the MAC4DLM-001 is determined by the following critical parameters:

Voltage Rating (Off State): 600 V minimum
Current Rating (On State): 4 A minimum
Gate Trigger Voltage (Vgt): 1.3 V maximum
Mounting Type: Through Hole
Package Compatibility: TO-251-3 Short Leads, IPAK, or TO-251AA variants
Configuration: Single TRIAC

All substitute parts listed maintain these core electrical specifications and physical compatibility. Variations in gate trigger current (Igt), hold current (Ih), and surge current ratings are permissible within the allowed parameter ranges for this product category, as these do not compromise functional equivalence in standard applications.

Parameter Comparison

Parameter	MAC4DLM-001 (onsemi)	MAC4DLM-1G (Littelfuse)	L6004V3TP (Littelfuse)	L6004V5TP (Littelfuse)	L6004V8TP (Littelfuse)	T435-600H (STMicroelectronics)
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Alternistor - Snubberless
Voltage - Off State	600 V	600 V	600 V	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	4 A	4 A	4 A	4 A	4 A	4 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	3 mA	3 mA	3 mA	5 mA	10 mA	35 mA
Current - Hold (Ih) (Max)	15 mA	15 mA	5 mA	10 mA	15 mA	35 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	40 A @ 60Hz	40 A @ 60Hz	33 A, 40 A	33 A, 40 A	33 A, 40 A	30 A, 31 A
Operating Temperature	-40°C ~ 110°C (TJ)	-40°C ~ 110°C (TJ)	-40°C ~ 110°C (TJ)	-40°C ~ 110°C (TJ)	-40°C ~ 110°C (TJ)	-40°C ~ 125°C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA
Configuration	Single	Single	Single	Single	Single	Single
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

MAC4DLM-1G (Littelfuse) is the primary direct substitute. It maintains identical electrical specifications to the MAC4DLM-001, including gate trigger current of 3 mA and hold current of 15 mA. The part is in active production status and ROHS3 compliant, addressing the obsolescence and compliance limitations of the original component.

L6004V3TP, L6004V5TP, and L6004V8TP (Littelfuse) are functionally equivalent alternatives with variations in gate trigger and hold current specifications. All three maintain the 600 V / 4 A core ratings and are ROHS3 compliant. These parts are suitable for applications where the specified gate trigger and hold current ranges are acceptable within circuit design tolerances.

T435-600H (STMicroelectronics) is a Snubberless Alternistor TRIAC with identical voltage and current ratings. This part differs in internal architecture (Alternistor vs. Logic - Sensitive Gate) and exhibits higher gate trigger current (35 mA) and hold current (35 mA). The operating temperature range extends to 125°C. This substitute is appropriate for applications requiring snubberless operation or extended temperature performance, provided circuit design accommodates the higher gate drive requirements.

All substitute parts are ROHS3 compliant and REACH unaffected, supporting modern manufacturing and environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can MAC4DLM-1G directly replace MAC4DLM-001 without circuit modification?

A: Yes. MAC4DLM-1G maintains identical electrical specifications for voltage rating (600 V), current rating (4 A), gate trigger voltage (1.3 V max), gate trigger current (3 mA max), and hold current (15 mA max). Physical packaging is compatible with TO-251-3 Short Leads / IPAK footprints.

Q: What is the difference between Logic - Sensitive Gate and Alternistor - Snubberless TRIACs?

A: These represent different internal architectures. Logic - Sensitive Gate TRIACs (MAC4DLM-001, MAC4DLM-1G, L6004V series) require lower gate drive current. Alternistor - Snubberless TRIACs (T435-600H) are designed to operate without external snubber networks and require higher gate drive current (35 mA vs. 3-10 mA). Selection depends on circuit topology and snubber requirements.

Q: Are the L6004V3TP, L6004V5TP, and L6004V8TP interchangeable?

A: These parts are electrically equivalent at the core ratings (600 V / 4 A) but differ in gate trigger current (3 mA, 5 mA, and 10 mA respectively) and hold current (5 mA, 10 mA, and 15 mA respectively). Interchangeability depends on circuit design tolerance for these parameters. Verify gate drive circuit capability before substitution.

Q: Does the extended temperature range of T435-600H (to 125°C) affect compatibility?

A: The extended range is a superset of the MAC4DLM-001 specification (-40°C to 110°C). T435-600H is compatible for applications within the original temperature range. However, the higher gate trigger current (35 mA) requires circuit verification to ensure adequate gate drive capability.

Q: What packaging options are available for these substitutes?

A: All substitute parts are available in TO-251-3 Short Leads, IPAK, or TO-251AA configurations, maintaining physical compatibility with MAC4DLM-001 PCB layouts. Verify specific supplier device package designation (e.g., TO-251-3L POD, TO-251AA, TO-251 V-Pak/I-Pak) against your assembly requirements.

Q: Are all substitute parts RoHS compliant?

A: MAC4DLM-001 is RoHS non-compliant. All listed substitutes (MAC4DLM-1G, L6004V3TP, L6004V5TP, L6004V8TP, T435-600H) are ROHS3 compliant, supporting modern manufacturing standards and environmental regulations.

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