DFEH10040D-2R2M=P3 Equivalent & Substitute Parts

Part Overview

The DFEH10040D-2R2M=P3 is a 2.2 µH shielded inductor manufactured by Murata Electronics, rated for 12 A continuous current with a maximum DC resistance of 7.5 mOhm. This component is designed for surface mount applications in power conversion and filtering circuits requiring compact, shielded inductance in a nonstandard package format.

The DFEH10040D series has reached obsolete product status. Identifying qualified substitute inductors with equivalent electrical and mechanical characteristics is necessary to maintain design continuity and ensure supply chain availability for new production runs and field replacements.

Substiute Parts

DFEH10040D-2R2M=P3

Murata ElectronicsIn Stock: 838DFEH10040D-2R2M=P3 Datasheet

Current PartRFQ

HCM1A1104V2-2R2-R

Eaton - Electronics DivisionIn Stock: 783HCM1A1104V2-2R2-R Datasheet

MFR RecommendedRFQ

MPXV1D1040L2R2

KEMETIn Stock: 1384MPXV1D1040L2R2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute inductors for the DFEH10040D-2R2M=P3 must satisfy the following criteria based on allowed electrical and mechanical parameters:

Electrical Equivalence Requirements:

• Inductance value: 2.2 µH (±20% tolerance acceptable)
• Shielded construction to maintain EMI performance
• DC resistance within 7.5 mOhm maximum specification
• Current rating minimum 12 A continuous
• Saturation current (Isat) minimum 14 A
• AEC-Q200 automotive qualification
• RoHS3 compliance

Mechanical Compatibility Requirements:

• Surface mount package format
• Nonstandard package dimensions compatible with 10.90mm × 10.00mm × 4.00mm footprint
• Operating temperature range minimum -40°C to 155°C

Acceptable Variations:

• Core material may differ (iron powder or metal composite) provided electrical specifications are met
• Packaging format may vary (Cut Tape or Tape & Reel) as this affects logistics, not functionality
• Saturation current above 14 A is acceptable
• DC resistance below 7.5 mOhm is acceptable

Parameter Comparison

Engineering Selection Recommendations

HCM1A1104V2-2R2-R (Eaton - Electronics Division):

This substitute meets all electrical equivalence criteria with identical inductance and tolerance. The DC resistance of 7 mOhm is superior to the original specification. However, the continuous current rating of 10.5 A is below the original 12 A specification. This part is suitable for applications where the actual operating current does not exceed 10.5 A. The part maintains AEC-Q200 qualification and RoHS3 compliance with active product status, ensuring long-term availability.

MPXV1D1040L2R2 (KEMET):

This substitute exceeds the original electrical specifications with a continuous current rating of 14.6 A and saturation current of 18.5 A, providing design margin above the original 12 A and 14 A ratings respectively. The DC resistance of 7.9 mOhm is within specification. The metal composite core material differs from the original iron powder core but maintains shielded construction and equivalent inductance. This part carries AEC-Q200 qualification and RoHS3 compliance with active product status. The MPXV1D1040L2R2 is the preferred substitute for applications requiring full current rating compatibility and enhanced performance margin.

Frequently Asked Questions (FAQ)

Q: Can the HCM1A1104V2-2R2-R be used in place of the DFEH10040D-2R2M=P3 in all applications?

A: The HCM1A1104V2-2R2-R is electrically equivalent for inductance and DC resistance but has a reduced continuous current rating of 10.5 A versus the original 12 A. Use this substitute only in applications where the actual operating current does not exceed 10.5 A. For applications requiring the full 12 A rating, the MPXV1D1040L2R2 is the appropriate choice.

Q: What is the difference between iron powder and metal composite core materials?

A: Both core materials are used in shielded inductors and provide equivalent inductance values when specified identically. The core material selection affects saturation characteristics, frequency response, and thermal performance. Both materials in these substitute parts meet the AEC-Q200 automotive qualification standard.

Q: Are the package dimensions identical across all three parts?

A: The original DFEH10040D-2R2M=P3 measures 10.90mm × 10.00mm × 4.00mm. Both substitute parts measure 10.80mm × 10.00mm × 4.00mm. The 0.10mm difference in length is within typical PCB layout tolerance and does not affect mechanical compatibility for standard surface mount assembly processes.

Q: Do all parts meet automotive qualification requirements?

A: Yes. The DFEH10040D-2R2M=P3, HCM1A1104V2-2R2-R, and MPXV1D1040L2R2 all carry AEC-Q200 qualification, confirming suitability for automotive applications. All parts are RoHS3 compliant.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) and Tape & Reel (TR) are packaging and delivery formats that do not affect component functionality. Cut Tape is suitable for lower-volume orders and manual assembly. Tape & Reel is optimized for high-volume automated assembly. The electrical and mechanical specifications remain identical regardless of packaging format.

Q: Why is the original DFEH10040D-2R2M=P3 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active substitute parts from Eaton and KEMET provide equivalent or superior performance with confirmed long-term availability, making them the appropriate choice for new designs and production continuity.