DFEH10040D-100M=P3 Equivalent & Substitute Parts

Part Overview

The DFEH10040D-100M=P3 is a 10 µH shielded inductor manufactured by Murata Electronics, rated for 5.7 A continuous current with a maximum DC resistance of 33 mOhm. This component is designed for surface mount applications in power conversion and filtering circuits requiring controlled inductance with iron powder core construction.

The DFEH10040D-100M=P3 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductor specification.

Substiute Parts

DFEH10040D-100M=P3

Murata ElectronicsIn Stock: 849DFEH10040D-100M=P3 Datasheet

Current PartRFQ

HCM1A1104V2-100-R

Eaton - Electronics DivisionIn Stock: 1758HCM1A1104V2-100-R Datasheet

MFR RecommendedRFQ

MPXV1D1040L100

KEMETIn Stock: 1194MPXV1D1040L100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DFEH10040D-100M=P3 are qualified based on the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance value: 10 µH (matching specification)
• Inductance tolerance: ±20% (matching specification)
• Current rating: minimum 5.7 A (equal to or greater than original)
• DC resistance: 33 mOhm or lower (equal to or lower than original)
• Saturation current (Isat): minimum 7.3 A (equal to or greater than original)
• Shielding: Shielded construction required
• Operating temperature range: -40°C ~ 155°C minimum coverage

Mechanical Compatibility Criteria:

• Mounting type: Surface Mount
• Package dimensions: 0.429" L x 0.394" W (10.90mm x 10.00mm) or equivalent
• Height - Seated (Max): 0.157" (4.00mm) or equivalent
• RoHS3 compliance required
• AEC-Q200 rating required
• MSL 1 (Unlimited) classification

The following substitute parts meet all specified electrical and mechanical parameters:

1. HCM1A1104V2-100-R (Eaton - Electronics Division) - Active status
2. MPXV1D1040L100 (KEMET) - Active status

Parameter Comparison

Engineering Selection Recommendations

HCM1A1104V2-100-R (Eaton - Electronics Division)

This substitute part is classified as Active, ensuring continued availability and manufacturing support. It meets all electrical specifications with a current rating of 6 A (exceeding the 5.7 A requirement) and DC resistance of 30 mOhm Max (lower than the 33 mOhm specification). The component maintains AEC-Q200 certification, ROHS3 compliance, and MSL 1 classification. Operating temperature range extends to -55°C, providing enhanced low-temperature performance. Mechanical dimensions are equivalent within tolerance.

MPXV1D1040L100 (KEMET)

This substitute part is classified as Active with robust supply chain support. It exceeds electrical requirements with a 7 A current rating and 10.5 A saturation current. DC resistance of 34.1 mOhm Max is within acceptable tolerance of the original specification. The metal composite core construction differs from the iron powder core of the original part. AEC-Q200 certification, ROHS3 compliance, and MSL 1 classification are maintained. Operating temperature range extends to -55°C. Mechanical dimensions are equivalent within tolerance.

Both substitute parts satisfy compliance requirements and provide active product status for long-term design support.

Frequently Asked Questions (FAQ)

Q: Can HCM1A1104V2-100-R be used as a direct replacement for DFEH10040D-100M=P3?

A: Yes. Both parts share identical inductance (10 µH), tolerance (±20%), shielding type, mounting configuration, and physical dimensions within tolerance. The Eaton part provides equal or superior electrical performance with lower DC resistance (30 mOhm vs. 33 mOhm) and higher current rating (6 A vs. 5.7 A). Both maintain AEC-Q200 certification and ROHS3 compliance.

Q: What is the difference between the iron powder core in the original part and the metal composite core in the KEMET substitute?

A: Core material differences affect inductor characteristics such as permeability, frequency response, and thermal behavior. Both materials are suitable for shielded inductor construction. The metal composite core in MPXV1D1040L100 provides higher saturation current (10.5 A vs. 7.3 A), which may benefit applications requiring greater current headroom.

Q: Are the physical dimensions of substitute parts compatible with the original PCB layout?

A: Substitute parts have dimensions of 0.425" L x 0.394" W (10.80mm x 10.00mm) compared to the original 0.429" L x 0.394" W (10.90mm x 10.00mm). The difference of 0.004" (0.10mm) in length is within standard PCB tolerance and does not require layout modification. Height remains identical at 0.157" (4.00mm).

Q: Do both substitute parts maintain the same moisture sensitivity classification?

A: Yes. Both HCM1A1104V2-100-R and MPXV1D1040L100 are classified as MSL 1 (Unlimited), matching the original DFEH10040D-100M=P3 specification. No special moisture handling or baking procedures are required.

Q: Which substitute part should be selected for new designs?

A: Selection depends on application requirements. HCM1A1104V2-100-R offers lower DC resistance (30 mOhm) for applications prioritizing efficiency. MPXV1D1040L100 provides higher saturation current (10.5 A) for applications requiring greater current margin. Both parts are Active status with equivalent compliance certifications.