DMNH45M7SCT N-Channel 40V 220A MOSFET Equivalent & Substitute Parts

Part Overview

The DMNH45M7SCT is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 40V drain-to-source voltage with 220A continuous drain current at 25°C. This device is packaged in TO-220-3 through-hole configuration and is designed for high-current switching applications requiring robust thermal performance up to 240W power dissipation. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when electrical parameters remain within acceptable operating ranges for the intended application while maintaining compatible package specifications and compliance certifications.

Substiute Parts

DMNH45M7SCT

Diodes IncorporatedIn Stock: 5721DMNH45M7SCT Datasheet

Current PartRFQ

IRL1004PBF

Infineon TechnologiesIn Stock: 8133IRL1004PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DMNH45M7SCT are qualified based on the following electrical and mechanical criteria:

Voltage Rating Compatibility: Substitute parts must maintain equal or greater Vdss rating (40V minimum) to ensure safe operation within the same voltage domain.

Current Handling: While the primary part specifies 220A continuous drain current, substitute parts with lower current ratings (130A or greater) are acceptable when the application circuit design accommodates reduced current capacity without exceeding thermal or power dissipation limits.

On-State Resistance: Rds On values must remain within acceptable ranges to prevent excessive power loss and thermal runaway. The primary part specifies 6mOhm maximum; substitutes with comparable or lower Rds On values maintain equivalent switching efficiency.

Package Configuration: All substitute parts must use TO-220-3 or TO-220AB through-hole packaging to ensure mechanical and thermal interface compatibility with existing PCB layouts and heatsinking arrangements.

Compliance and Status: All substitute parts must maintain Active product status, RoHS3 compliance, and unlimited moisture sensitivity rating to ensure supply chain continuity and regulatory alignment.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The DMNH45M7SCT remains the preferred choice for applications requiring maximum continuous drain current of 220A with 240W power dissipation capability. This part is Active, RoHS3 compliant, and maintains unlimited moisture sensitivity rating.

Substitute Part Selection: The IRL1004PBF from Infineon Technologies is qualified as a substitute when application requirements permit reduced continuous drain current (130A) and power dissipation (200W). This part maintains identical voltage rating (40V Vdss), identical operating temperature range (-55°C to 175°C), and equivalent compliance certifications (RoHS3, Active status, unlimited MSL).

Compliance Alignment: Both parts are RoHS3 compliant, REACH unaffected, and classified under identical HTSUS code (8541.29.0095). Both maintain Active product status, ensuring long-term supply availability and regulatory support.

Thermal Considerations: Applications operating near the 240W dissipation limit of the primary part require verification that the substitute's 200W maximum power dissipation does not create thermal constraints. Circuit design must account for the 40W reduction in maximum power handling.

Frequently Asked Questions (FAQ)

Q: Can the IRL1004PBF directly replace the DMNH45M7SCT in all applications?

A: The IRL1004PBF is electrically compatible for applications where continuous drain current does not exceed 130A and power dissipation remains below 200W. Both parts share identical 40V Vdss rating, identical operating temperature range, and compatible TO-220 package configurations. Applications requiring the full 220A current capacity of the primary part cannot use this substitute.

Q: What are the key electrical differences between these parts?

A: The primary differences are continuous drain current (220A vs. 130A), maximum power dissipation (240W vs. 200W), gate threshold voltage (3V vs. 1V), and gate charge specifications (64.7nC vs. 100nC). On-state resistance values are comparable (6mOhm vs. 6.5mOhm), indicating similar switching efficiency at their respective rated currents.

Q: Are the package configurations identical?

A: Both parts use TO-220 through-hole packaging. The primary part specifies TO-220-3, while the substitute specifies TO-220AB. These designations refer to the same three-lead through-hole configuration with compatible pin spacing and thermal interface characteristics for standard TO-220 heatsinks.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the DMNH45M7SCT and IRL1004PBF are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both maintain Active product status and unlimited moisture sensitivity rating (MSL 1).

Q: What should be considered when switching from the primary part to the substitute?

A: Circuit design must verify that application current requirements do not exceed 130A continuous drain current and that thermal design accommodates the 200W maximum power dissipation limit. Gate drive circuitry should account for the lower gate threshold voltage (1V vs. 3V) of the substitute part. Both parts operate across the identical temperature range, eliminating thermal operating envelope concerns.

Q: Are there inventory considerations between these parts?

A: The primary part (DMNH45M7SCT) has 5650 pieces in stock, while the substitute (IRL1004PBF) has 8117 pieces available. Both are listed as new original stock from their respective manufacturers.