MPIA4040R4-100-R Equivalent & Substitute Parts

Part Overview

The MPIA4040R4-100-R is a 10 µH shielded molded inductor manufactured by Eaton - Electronics Division, rated for 1.9 A continuous current with 148 mOhm DC resistance. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design support and procurement continuity. The part is qualified to AEC-Q200 standards and operates across the -55°C to 125°C temperature range.

Substiute Parts

MPIA4040R4-100-R

Eaton - Electronics DivisionIn Stock: 945MPIA4040R4-100-R Datasheet

Current PartRFQ

MPIA4020V2-100-R

Eaton - Electronics DivisionIn Stock: 1181MPIA4020V2-100-R Datasheet

SimilarRFQ

B82464G4103M000

EPCOS - TDK ElectronicsIn Stock: 3345B82464G4103M000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MPIA4040R4-100-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 10 µH (fixed requirement)
• Inductance tolerance: ±20% (fixed requirement)
• Shielding: Shielded (fixed requirement)
• Mounting type: Surface Mount (fixed requirement)
• Inductance test frequency: 100 kHz (fixed requirement)
• AEC-Q200 qualification: Required (fixed requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (fixed requirement)

Secondary Compatibility Criteria:

• Current rating: Minimum 1.9 A (substitute must meet or exceed)
• DC resistance: Lower values preferred for thermal performance
• Operating temperature range: Minimum -55°C to 125°C (substitute must cover or exceed)
• Saturation current: Minimum 2.6 A (substitute must meet or exceed)

Two substitute parts meet these criteria with documented compatibility.

Parameter Comparison

Engineering Selection Recommendations

MPIA4020V2-100-R (Eaton - Electronics Division)

This substitute is an active product from the same manufacturer (Eaton - Electronics Division) within the MPIA40 series family. It maintains identical inductance (10 µH), tolerance (±20%), shielding, and operating temperature range. The part is RoHS Compliant and carries AEC-Q200 qualification. Physical dimensions are comparable (4.95 x 4.20 mm vs. 4.45 x 4.06 mm), with identical seated height (2.00 mm), supporting direct PCB layout compatibility in most applications.

Trade-off consideration: Current rating is 1.7 A versus the original 1.9 A, and DC resistance increases to 281 mOhm maximum versus 148 mOhm. This substitute is suitable for applications where the 1.7 A rating is sufficient and thermal dissipation is not a primary constraint.

B82464G4103M000 (EPCOS - TDK Electronics)

This substitute is an active product from EPCOS - TDK Electronics with superior electrical performance. It maintains identical inductance (10 µH) and tolerance (±20%), with significantly higher current rating (3.4 A) and saturation current (3.5 A). DC resistance is substantially lower at 30 mOhm maximum, providing superior thermal performance. The part is ROHS3 Compliant, REACH Unaffected, and AEC-Q200 qualified. Operating temperature range extends to 150°C.

Trade-off consideration: Physical footprint is substantially larger (10.40 x 10.40 mm vs. 4.45 x 4.06 mm) with greater seated height (4.80 mm vs. 2.00 mm). This substitute requires PCB layout verification and is suitable for applications where space permits and enhanced current handling and thermal performance are beneficial.

Frequently Asked Questions (FAQ)

Q: Can MPIA4020V2-100-R directly replace MPIA4040R4-100-R in all applications?

A: MPIA4020V2-100-R is compatible for applications where the 1.7 A current rating is sufficient. The saturation current of 2.2 A is lower than the original 2.6 A. Verify that your circuit does not require the full 1.9 A continuous current or exceed 2.2 A saturation current. Physical dimensions are similar, supporting direct PCB placement in most cases.

Q: When should B82464G4103M000 be selected over MPIA4020V2-100-R?

A: Select B82464G4103M000 when your application requires higher current handling (3.4 A rating), lower DC resistance (30 mOhm for reduced thermal dissipation), or extended operating temperature to 150°C. This substitute is suitable if PCB layout can accommodate the larger footprint (10.40 x 10.40 mm) and 4.80 mm seated height.

Q: Are all three parts AEC-Q200 qualified?

A: Yes. MPIA4040R4-100-R, MPIA4020V2-100-R, and B82464G4103M000 all carry AEC-Q200 qualification, meeting automotive-grade reliability standards.

Q: What is the impact of increased DC resistance in MPIA4020V2-100-R?

A: DC resistance increases from 148 mOhm to 281 mOhm maximum. This results in higher resistive losses (I²R heating). For a 1.7 A circuit, power dissipation increases from approximately 427 mW to 812 mW. Verify thermal management capability in your application.

Q: Can B82464G4103M000 be used in space-constrained designs?

A: No. B82464G4103M000 has a significantly larger footprint (10.40 x 10.40 mm vs. 4.45 x 4.06 mm original) and greater height (4.80 mm vs. 2.00 mm). PCB layout redesign is required. Use MPIA4020V2-100-R for space-constrained applications where current rating permits.

Q: What is the Moisture Sensitivity Level for all three parts?

A: All three parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are there differences in core material between substitutes?

A: Yes. MPIA4040R4-100-R and MPIA4020V2-100-R use metal composite cores. B82464G4103M000 uses a ferrite core with drum core, wirewound construction. This affects frequency response characteristics and thermal performance but does not impact 10 µH inductance value or AEC-Q200 compliance.