DFEH7030D-8R2M=P3 Equivalent & Substitute Parts

Part Overview

The DFEH7030D-8R2M=P3 is an 8.2 µH shielded inductor manufactured by Murata Electronics, rated for 3.1 A continuous current with a maximum DC resistance of 78mOhm. This component is designed for surface mount applications in power conversion and filtering circuits requiring iron powder core construction.

The DFEH7030D-8R2M=P3 carries a "Not For New Designs" product status, indicating that Murata has discontinued active development for this part number. This status necessitates identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and maintenance applications.

Substiute Parts

DFEH7030D-8R2M=P3

Murata ElectronicsIn Stock: 840DFEH7030D-8R2M=P3 Datasheet

Current PartRFQ

HCM1A0703V2-8R2-R

Eaton - Electronics DivisionIn Stock: 1162HCM1A0703V2-8R2-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DFEH7030D-8R2M=P3 is determined by the following critical parameters:

• Inductance Value: Must be 8.2 µH with ±20% tolerance
• Current Rating: Minimum 3.1 A continuous current capability
• DC Resistance: Maximum 78mOhm to maintain circuit efficiency
• Core Material: Iron powder construction for electromagnetic performance
• Shielding: Shielded configuration to minimize EMI coupling
• Package Dimensions: 7.00mm x 6.60mm x 3.00mm footprint for PCB compatibility
• Mounting Type: Surface mount technology
• Compliance: AEC-Q200 rating and ROHS3 compliance

The HCM1A0703V2-8R2-R from Eaton - Electronics Division meets all substitution criteria. This part maintains identical inductance, core material, shielding, package dimensions, and compliance certifications while providing improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The HCM1A0703V2-8R2-R is a direct functional substitute for the DFEH7030D-8R2M=P3. Both components maintain AEC-Q200 automotive-grade qualification and ROHS3 compliance, ensuring regulatory and quality standards are preserved across substitution.

The Eaton part provides measurable improvements in electrical performance: 400mA higher current rating, 200mA higher saturation current, and 14mOhm lower DC resistance. These enhancements reduce thermal dissipation and provide additional design margin without requiring circuit modifications.

The operating temperature range of the Eaton substitute extends to -55°C, providing broader environmental coverage compared to the Murata part's -40°C minimum. Both components share identical package dimensions, footprint, and mounting characteristics, enabling direct PCB-level replacement without layout changes.

Frequently Asked Questions (FAQ)

Q: Can the HCM1A0703V2-8R2-R be used as a direct replacement for DFEH7030D-8R2M=P3 on existing PCBs?

A: Yes. Both components share identical package dimensions (7.00mm x 6.60mm x 3.00mm), mounting type (surface mount), and footprint. No PCB layout modifications are required.

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

A: The Eaton substitute provides higher current ratings (3.5 A vs. 3.1 A), higher saturation current (4.8 A vs. 4.2 A), and lower DC resistance (64mOhm vs. 78mOhm). Inductance value and tolerance remain identical at 8.2 µH ±20%.

Q: Are both parts qualified to the same automotive standards?

A: Yes. Both the DFEH7030D-8R2M=P3 and HCM1A0703V2-8R2-R carry AEC-Q200 qualification and ROHS3 compliance certification.

Q: What is the difference in packaging between the main part and substitute?

A: The DFEH7030D-8R2M=P3 is supplied in Tape & Reel (TR) packaging, while the HCM1A0703V2-8R2-R is supplied in Cut Tape (CT) packaging. Both are standard surface mount delivery formats with identical component specifications.

Q: Does the lower DC resistance of the substitute affect circuit operation?

A: No. Lower DC resistance is a beneficial characteristic that reduces resistive losses and heat generation. This improvement maintains full circuit compatibility while enhancing efficiency.

Q: What is the operating temperature range for each part?

A: The DFEH7030D-8R2M=P3 operates from -40°C to 155°C. The HCM1A0703V2-8R2-R operates from -55°C to 155°C, providing extended low-temperature capability.