MAC4DSN-1G Equivalent & Substitute Parts

Part Overview

The MAC4DSN-1G is a Logic - Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 800 V off-state voltage and 4 A on-state current in a surface mount TO-252 (DPAK) package. This component is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical ratings and functional characteristics align with the main part's specifications, enabling direct replacement in applications where packaging constraints permit.

Key Parameters

Parameter	Value
Voltage - Off State	800 V
Current - On State (It (RMS)) (Max)	4 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Gate Trigger (Igt) (Max)	10 mA
Current - Hold (Ih) (Max)	15 mA
Operating Temperature Range	-40°C ~ 125°C (TJ)
Configuration	Single
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the MAC4DSN-1G is determined by the following criteria:

Voltage - Off State: 800 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)
Current - Gate Trigger (Igt) (Max): 10 mA (exact match or lower required)
Current - Hold (Ih) (Max): 15 mA (exact match or lower required)
Operating Temperature Range: -40°C ~ 125°C (TJ) (exact match required)
Configuration: Single (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)

Three substitute parts meet these criteria: Q8004V3TP (Littelfuse Inc., Through Hole TO-251AA), T410-800H (STMicroelectronics, Through Hole TO-251 IPAK), and T435-800H (STMicroelectronics, Through Hole TO-251 IPAK). All substitutes maintain identical electrical ratings for voltage, current, and temperature specifications. Primary differences exist in mounting type (Through Hole vs. Surface Mount) and TRIAC type classification (Standard, Logic - Sensitive Gate, or Alternistor - Snubberless).

Parameter Comparison

Parameter	MAC4DSN-1G	Q8004V3TP	T410-800H	T435-800H
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	STMicroelectronics	STMicroelectronics
Voltage - Off State	800 V	800 V	800 V	800 V
Current - On State (It (RMS)) (Max)	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
Current - Gate Trigger (Igt) (Max)	10 mA	10 mA	10 mA	35 mA
Current - Hold (Ih) (Max)	15 mA	20 mA	15 mA	35 mA
Operating Temperature Range	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount	Through Hole	Through Hole	Through Hole
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA
TRIAC Type	Logic - Sensitive Gate	Standard	Logic - Sensitive Gate	Alternistor - Snubberless
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three substitute parts maintain Active product status and ROHS3 compliance, meeting regulatory and supply chain continuity requirements equivalent to the MAC4DSN-1G.

Q8004V3TP is a Littelfuse Inc. Standard TRIAC substitute with identical electrical specifications. This part differs from the main part in TRIAC type classification and mounting configuration (Through Hole vs. Surface Mount). Current - Hold (Ih) (Max) is 20 mA, which exceeds the main part specification of 15 mA.

T410-800H is an STMicroelectronics Logic - Sensitive Gate TRIAC substitute with identical TRIAC type classification to the main part. Electrical specifications match exactly, including Current - Gate Trigger (Igt) (Max) of 10 mA and Current - Hold (Ih) (Max) of 15 mA. Mounting configuration is Through Hole TO-251 (IPAK).

T435-800H is an STMicroelectronics Alternistor - Snubberless TRIAC substitute. Current - Gate Trigger (Igt) (Max) is 35 mA and Current - Hold (Ih) (Max) is 35 mA, both exceeding the main part specifications of 10 mA and 15 mA respectively. Mounting configuration is Through Hole TO-251 (IPAK).

Frequently Asked Questions (FAQ)

Q: Can Q8004V3TP replace MAC4DSN-1G in all applications?

A: Q8004V3TP meets all critical electrical specifications (800 V, 4 A, 1.3 V gate trigger). However, it is classified as a Standard TRIAC rather than Logic - Sensitive Gate, and mounting type differs (Through Hole vs. Surface Mount). PCB layout compatibility must be verified before substitution.

Q: What is the primary difference between T410-800H and T435-800H?

A: T410-800H is a Logic - Sensitive Gate TRIAC with Current - Gate Trigger (Igt) (Max) of 10 mA and Current - Hold (Ih) (Max) of 15 mA. T435-800H is an Alternistor - Snubberless TRIAC with Current - Gate Trigger (Igt) (Max) of 35 mA and Current - Hold (Ih) (Max) of 35 mA. T410-800H maintains exact electrical parity with MAC4DSN-1G gate and hold current specifications.

Q: Are all substitutes suitable for surface mount applications?

A: No. MAC4DSN-1G is surface mount (TO-252 DPAK). All three substitutes are Through Hole components (TO-251 IPAK or TO-251AA). PCB design and assembly process compatibility must be evaluated before substitution.

Q: Do all parts meet the same compliance standards?

A: Yes. MAC4DSN-1G and all three substitutes are ROHS3 compliant, REACH unaffected, and classified as Active products. All carry identical ECCN (EAR99) and HTSUS (8541.30.0080) designations.

Q: Which substitute provides the closest electrical match to MAC4DSN-1G?

A: T410-800H provides exact electrical parity across all specified parameters: 800 V off-state voltage, 4 A on-state current, 1.3 V gate trigger voltage, 10 mA gate trigger current, and 15 mA hold current. It is also classified as Logic - Sensitive Gate, matching the main part's TRIAC type.

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