MAC4DCM-1G TRIAC Equivalent & Substitute Parts

Part Overview

The MAC4DCM-1G is a standard TRIAC thyristor manufactured by Littelfuse Inc., rated for 600V off-state voltage and 4A on-state current in a surface mount TO-252 (DPAK) package. This component is Active status and ROHS3 compliant, suitable for AC switching applications requiring reliable gate triggering characteristics.

Substitute parts become necessary when addressing specific application requirements such as mounting type compatibility (surface mount versus through-hole), gate sensitivity variations, or thermal performance needs within the same electrical rating class.

Substiute Parts

MAC4DCM-1G

Littelfuse Inc.In Stock: 4889MAC4DCM-1G Datasheet

Current PartRFQ

L6004V3TP

Littelfuse Inc.In Stock: 2067L6004V3TP Datasheet

MFR RecommendedRFQ

L6004V5TP

Littelfuse Inc.In Stock: 2035L6004V5TP Datasheet

MFR RecommendedRFQ

T435-600B

STMicroelectronicsIn Stock: 2341T435-600B Datasheet

MFR RecommendedRFQ

T435-600H

STMicroelectronicsIn Stock: 3959T435-600H Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAC4DCM-1G is determined by the following critical parameters:

• Voltage - Off State: 600 V (required match)
• Current - On State (It (RMS)) (Max): 4 A (required match)
• Voltage - Gate Trigger (Vgt) (Max): 1.3 V (required match)
• Configuration: Single (required match)
• RoHS Status: ROHS3 Compliant (required match)

Substitute parts are grouped into two categories based on mounting type and gate characteristics:

Category 1: Surface Mount DPAK Package — Parts maintaining the same TO-252 (DPAK) surface mount form factor with equivalent electrical ratings.

Category 2: Through-Hole TO-251 Package — Parts with identical electrical ratings but different mounting technology and gate sensitivity characteristics, suitable for applications requiring through-hole assembly.

Parameter Comparison

Engineering Selection Recommendations

For Surface Mount Applications (DPAK Package):

T435-600B (STMicroelectronics) is the direct substitute for MAC4DCM-1G when maintaining surface mount assembly requirements. Both parts share identical TO-252 (DPAK) packaging, 600V/4A ratings, and 1.3V gate trigger voltage. The T435-600B is classified as an Alternistor - Snubberless type, whereas the MAC4DCM-1G is a Standard type TRIAC. Both are Active status and ROHS3 compliant with operating temperature range of -40°C to 125°C (TJ).

For Through-Hole Applications (TO-251 Package):

T435-600H (STMicroelectronics) provides through-hole assembly compatibility while maintaining identical electrical ratings (600V, 4A, 1.3V gate trigger). This part operates across -40°C to 125°C (TJ), matching the main part's thermal range.

L6004V3TP and L6004V5TP (Littelfuse Inc.) are Logic - Sensitive Gate TRIAC variants in through-hole TO-251 configuration. These parts feature reduced gate trigger current (3 mA and 5 mA respectively, compared to 35 mA in the main part) and reduced hold current (5 mA and 10 mA respectively). Operating temperature range is -40°C to 110°C (TJ). These parts are suitable for applications requiring lower gate drive requirements.

All substitute parts maintain ROHS3 compliance and Active product status.

Frequently Asked Questions (FAQ)

Q: Can T435-600B replace MAC4DCM-1G in a surface mount application?

A: Yes. Both parts share identical TO-252 (DPAK) packaging, 600V off-state voltage, 4A on-state current, and 1.3V maximum gate trigger voltage. The primary difference is the TRIAC type classification (Alternistor - Snubberless versus Standard), but electrical parameters remain equivalent for substitution purposes.

Q: What is the difference between the MAC4DCM-1G and the through-hole alternatives?

A: The MAC4DCM-1G is a surface mount component in TO-252 (DPAK) package. Through-hole alternatives (T435-600H, L6004V3TP, L6004V5TP) use TO-251 package configuration. Through-hole parts are selected when PCB assembly processes require pin insertion rather than surface mount soldering.

Q: Why do L6004V3TP and L6004V5TP have lower gate trigger current specifications?

A: L6004V3TP and L6004V5TP are classified as Logic - Sensitive Gate TRIACs, designed for applications requiring reduced gate drive power. The MAC4DCM-1G is a Standard TRIAC with higher gate current requirements (35 mA). Selection between these types depends on the gate driver circuit capability and application requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. MAC4DCM-1G and all listed substitute parts (T435-600B, T435-600H, L6004V3TP, L6004V5TP) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What is the maximum operating temperature difference between the main part and through-hole substitutes?

A: The MAC4DCM-1G and T435-600H operate across -40°C to 125°C (TJ). The L6004V3TP and L6004V5TP operate across -40°C to 110°C (TJ), representing a 15°C reduction in maximum junction temperature. Application thermal requirements must be evaluated when selecting between these options.

Q: Can I use L6004V3TP and L6004V5TP interchangeably?

A: Both are Logic - Sensitive Gate TRIACs in TO-251 package with identical voltage and current ratings. The primary difference is gate trigger current (3 mA versus 5 mA) and hold current (5 mA versus 10 mA). Selection depends on gate driver circuit specifications and application sensitivity requirements.