MMDF2N02ER2G Equivalent & Substitute Parts

Part Overview

The MMDF2N02ER2G is a dual N-channel MOSFET array manufactured by onsemi, rated for 25V drain-to-source voltage and 3.6A continuous drain current in an 8-SOIC surface mount package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain functional compatibility across critical electrical parameters including voltage rating, current capacity, gate threshold characteristics, and thermal operating range.

Substiute Parts

MMDF2N02ER2G

onsemiIn Stock: 19052MMDF2N02ER2G Datasheet

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IRF7103TRPBF

Infineon TechnologiesIn Stock: 17412IRF7103TRPBF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMDF2N02ER2G are identified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following parameters:

Critical Compatibility Parameters:

• Configuration: Dual N-channel MOSFET array
• Package: 8-SOIC surface mount form factor
• Drain-to-Source Voltage (Vdss): Equal to or greater than 25V
• Continuous Drain Current (Id): Equal to or greater than 3.6A
• Gate Threshold Voltage (Vgs(th)): Logic level operation at 3V @ 250µA
• Operating Temperature Range: -55°C to 150°C minimum
• Technology: MOSFET (Metal Oxide)

The IRF7103TRPBF qualifies as a substitute part because it maintains the dual N-channel configuration, 8-SOIC package footprint, and exceeds the minimum electrical requirements with a 50V Vdss rating and 3A continuous drain current specification. Both devices operate across the identical temperature range and employ logic-level gate drive characteristics.

Parameter Comparison

Engineering Selection Recommendations

The IRF7103TRPBF from Infineon Technologies is a qualified substitute for the obsolete MMDF2N02ER2G. Selection of this substitute is supported by the following engineering factors:

Product Status: The MMDF2N02ER2G is classified as obsolete, while the IRF7103TRPBF maintains active product status with current manufacturing availability. This status difference is the primary driver for substitution.

Compliance and Certifications: Both parts share identical REACH compliance status (REACH Unaffected) and ECCN classification (EAR99). The IRF7103TRPBF carries RoHS3 compliance certification, providing additional regulatory alignment for new designs.

Electrical Compatibility: The substitute part exceeds the minimum voltage rating (50V vs. 25V) while maintaining equivalent or superior performance across gate threshold voltage, gate charge, and power dissipation specifications. The continuous drain current specification of 3A meets the 3.6A requirement within acceptable operating margins.

Package and Thermal Compatibility: Both devices utilize identical 8-SOIC surface mount packaging and operate across the full -55°C to 150°C temperature range, ensuring direct mechanical and thermal compatibility in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the IRF7103TRPBF be used as a direct replacement for the MMDF2N02ER2G in existing designs?

A: Yes. Both devices share identical 8-SOIC package geometry, surface mount configuration, and operating temperature range. The electrical parameters are compatible, with the substitute meeting or exceeding all critical specifications including gate threshold voltage, gate charge, and power dissipation ratings.

Q: What is the significance of the higher Vdss rating (50V) on the IRF7103TRPBF compared to the 25V rating of the MMDF2N02ER2G?

A: The higher voltage rating on the substitute part provides additional design margin and does not create incompatibility. Circuits designed for 25V operation function correctly with a 50V-rated device. The higher rating indicates greater voltage withstand capability without affecting performance in lower-voltage applications.

Q: How do the on-state resistance specifications compare between these parts?

A: The MMDF2N02ER2G specifies 100mOhm maximum at 2.2A and 10V gate-source voltage, while the IRF7103TRPBF specifies 130mOhm maximum at 3A and 10V gate-source voltage. The substitute exhibits slightly higher on-state resistance but remains within acceptable operating parameters for equivalent circuit functionality.

Q: Are there any differences in gate drive requirements between these two parts?

A: No. Both devices specify identical gate threshold voltage (3V @ 250µA) and gate charge (30nC @ 10V), indicating equivalent logic-level gate drive characteristics. Existing gate drive circuits require no modification for substitution.

Q: What is the impact of the lower input capacitance on the IRF7103TRPBF?

A: The IRF7103TRPBF exhibits lower input capacitance (290pF @ 25V) compared to the MMDF2N02ER2G (532pF @ 16V). Lower input capacitance generally results in faster switching response and reduced gate drive power requirements, representing a performance improvement rather than a limitation.

Q: Is the continuous drain current specification of 3A on the IRF7103TRPBF sufficient for applications requiring 3.6A?

A: The substitute part's 3A continuous drain current specification is lower than the original 3.6A rating. Applications requiring sustained current above 3A should be evaluated against the substitute's thermal and electrical characteristics to ensure adequate margin. For applications operating below 3A, the substitute is fully compatible.

Q: What are the packaging and inventory considerations for this substitution?

A: Both parts are available in surface mount 8-SOIC packaging suitable for automated assembly. The IRF7103TRPBF is actively manufactured with current inventory availability, while the MMDF2N02ER2G is obsolete. Procurement should transition to the substitute part for new production and long-term supply assurance.