DFEH10040D-1R5M=P3 Equivalent & Substitute Parts

Part Overview

The DFEH10040D-1R5M=P3 is a 1.5 µH shielded inductor manufactured by Murata Electronics, rated for 14 A continuous current with a maximum DC resistance of 5mOhm. This surface mount component features an iron powder core and is designed for applications requiring compact, high-current inductive filtering in power conversion and signal conditioning circuits.

The DFEH10040D-1R5M=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 systems utilizing this inductor specification.

Substiute Parts

DFEH10040D-1R5M=P3

Murata ElectronicsIn Stock: 755DFEH10040D-1R5M=P3 Datasheet

Current PartRFQ

HCM1A1104V2-1R5-R

Eaton - Electronics DivisionIn Stock: 1033HCM1A1104V2-1R5-R Datasheet

MFR RecommendedRFQ

MPXV1D1040L1R5

KEMETIn Stock: 895MPXV1D1040L1R5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DFEH10040D-1R5M=P3 are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 1.5 µH (exact match required)
• Current rating: minimum 14 A continuous
• Shielding: shielded construction
• Mounting type: surface mount
• Package dimensions: compatible with 10.90mm x 10.00mm x 4.00mm (max) footprint
• Core material: iron powder or metal composite
• Compliance: AEC-Q200 rated, ROHS3 compliant

Secondary Compatibility Factors:

• DC resistance within acceptable operating parameters
• Saturation current rating equal to or exceeding 19A
• Operating temperature range encompassing -40°C ~ 155°C minimum
• Tolerance: ±20%

The two substitute parts identified meet these criteria while offering improved or equivalent performance characteristics compared to the obsolete DFEH10040D-1R5M=P3.

Parameter Comparison

Engineering Selection Recommendations

HCM1A1104V2-1R5-R (Eaton - Electronics Division)

This substitute is recommended as the primary replacement for the DFEH10040D-1R5M=P3. The HCM1A1104V2-1R5-R maintains identical inductance, current rating, and tolerance specifications while offering improved DC resistance (4.2mOhm vs. 5mOhm) and higher saturation current (22A vs. 19A). The component is actively manufactured, ROHS3 compliant, and AEC-Q200 rated. Extended operating temperature range (-55°C ~ 155°C) provides additional thermal margin. Footprint dimensions are compatible with the original design, with minimal length variation (10.80mm vs. 10.90mm).

MPXV1D1040L1R5 (KEMET)

This substitute provides an alternative with enhanced current handling capability (17.7 A vs. 14 A) and higher saturation current (26A vs. 19A). The metal composite core construction differs from the original iron powder core but maintains shielded operation and identical inductance value. DC resistance is slightly elevated (5.4mOhm vs. 5mOhm). The component is actively manufactured, ROHS3 compliant, and AEC-Q200 rated. Extended operating temperature range (-55°C ~ 155°C) and compatible footprint dimensions support direct substitution. This option is suitable for applications requiring additional current margin or where metal composite core characteristics are acceptable.

Both substitutes are actively produced, ensuring long-term supply availability and supporting continued system production without design modification.

Frequently Asked Questions (FAQ)

Q: Can the HCM1A1104V2-1R5-R be used as a direct replacement for the DFEH10040D-1R5M=P3?

A: Yes. Both components share identical inductance (1.5 µH), current rating (14 A), tolerance (±20%), and physical dimensions within acceptable tolerance. The HCM1A1104V2-1R5-R offers improved DC resistance and higher saturation current, making it a functionally superior substitute. No circuit redesign is required.

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

A: Both core materials are used in shielded inductor construction and support the specified inductance and current ratings. Iron powder cores and metal composite cores exhibit different frequency response and saturation characteristics. The MPXV1D1040L1R5 metal composite core provides higher saturation current (26A vs. 19A) and extended current handling capability. Selection between core types depends on application-specific frequency response and thermal requirements.

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

A: Yes. Both substitute parts maintain the same mounting type (surface mount) and maximum height (4.00mm). Footprint dimensions are compatible: the original measures 10.90mm x 10.00mm, while substitutes measure 10.80mm x 10.00mm. This 0.10mm length difference is within standard PCB tolerance and does not require layout modification.

Q: Do the substitute parts meet the same compliance and quality standards as the original?

A: Yes. Both HCM1A1104V2-1R5-R and MPXV1D1040L1R5 are AEC-Q200 rated and ROHS3 compliant, matching the original DFEH10040D-1R5M=P3 compliance profile. Both are actively manufactured, ensuring consistent quality and long-term availability.

Q: Which substitute should be selected for new designs?

A: The HCM1A1104V2-1R5-R is recommended for designs requiring direct electrical and thermal equivalence to the original specification. The MPXV1D1040L1R5 is recommended for applications where enhanced current margin (17.7 A vs. 14 A) or metal composite core characteristics provide design advantages.