MPIA4040R2-3R3-R Equivalent & Substitute Parts

Part Overview

The MPIA4040R2-3R3-R is a 3.3 µH shielded molded inductor manufactured by Eaton - Electronics Division, rated for 2.6 A continuous current with a DC resistance of 76 mOhm. This component features a metal composite core and is qualified to AEC-Q200 standards for automotive applications. The part is currently classified as obsolete, necessitating identification of equivalent alternatives that maintain functional compatibility while meeting current supply chain requirements.

Substiute Parts

MPIA4040R2-3R3-R

Eaton - Electronics DivisionIn Stock: 957MPIA4040R2-3R3-R Datasheet

Current PartRFQ

MPIA4015V2-3R3-R

Eaton - Electronics DivisionIn Stock: 12693MPIA4015V2-3R3-R Datasheet

SimilarRFQ

B82464G4332M000

EPCOS - TDK ElectronicsIn Stock: 9562B82464G4332M000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPIA4040R2-3R3-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 3.3 µH (fixed)
• Inductance tolerance: ±20% (fixed)
• Shielding requirement: Shielded (mandatory)
• Mounting type: Surface Mount (mandatory)
• AEC-Q200 qualification: Required for automotive applications
• Operating temperature range: -55°C to 125°C minimum

Secondary Compatibility Factors:

• Current rating must equal or exceed 2.6 A
• Saturation current (Isat) must equal or exceed 5.4 A
• DC resistance should be minimized to reduce thermal losses
• Core material and construction type may vary (metal composite, ferrite, wirewound)

The substitute parts listed below satisfy all primary matching criteria and maintain functional equivalence within the specified electrical and thermal operating envelope.

Parameter Comparison

Engineering Selection Recommendations

MPIA4015V2-3R3-R (Eaton - Electronics Division)

This substitute maintains identical inductance, tolerance, and core material specifications to the obsolete MPIA4040R2-3R3-R. The part is currently in active production status with substantial inventory availability (12,595 pcs). It provides a 3.0 A current rating, which exceeds the minimum 2.6 A requirement of the original part. The DC resistance of 92 mOhm is marginally higher than the original 76 mOhm specification. This part is AEC-Q200 qualified, RoHS compliant, and operates across the identical temperature range (-55°C to 125°C). The MPIA4015V2-3R3-R is the preferred direct replacement when design constraints prioritize form factor consistency and core material equivalence.

B82464G4332M000 (EPCOS - TDK Electronics)

This substitute provides the same 3.3 µH inductance and ±20% tolerance with significantly superior electrical performance characteristics. The part delivers a 5.5 A current rating and 12 mOhm DC resistance, representing substantial improvements over the original specification. The ferrite drum core construction differs from the metal composite core of the original part, but maintains shielded operation and AEC-Q200 qualification. This part supports an extended operating temperature range (-55°C to 150°C) and is ROHS3 compliant. The B82464G4332M000 is suitable for applications where improved thermal performance and higher current capacity provide design margin benefits, provided that the larger physical dimensions (10.40mm x 10.40mm x 4.80mm) are accommodated within the PCB layout.

Frequently Asked Questions (FAQ)

Q: Can the MPIA4015V2-3R3-R directly replace the MPIA4040R2-3R3-R without circuit modification?

A: Yes. Both parts share identical inductance (3.3 µH), tolerance (±20%), shielding, core material (metal composite), operating temperature range (-55°C to 125°C), and AEC-Q200 qualification. The MPIA4015V2-3R3-R current rating (3.0 A) exceeds the original requirement (2.6 A). The DC resistance increase from 76 mOhm to 92 mOhm is within acceptable limits for most applications. Physical dimensions are comparable, supporting direct PCB substitution.

Q: What are the key differences between the MPIA4015V2-3R3-R and B82464G4332M000?

A: The MPIA4015V2-3R3-R maintains metal composite core construction identical to the original part, while the B82464G4332M000 uses ferrite drum core wirewound construction. The B82464G4332M000 provides superior current handling (5.5 A vs. 3.0 A) and significantly lower DC resistance (12 mOhm vs. 92 mOhm). The B82464G4332M000 is physically larger (10.40mm x 10.40mm x 4.80mm vs. 4.95mm x 4.20mm x 1.50mm) and supports a higher maximum operating temperature (150°C vs. 125°C).

Q: Are all substitute parts AEC-Q200 qualified?

A: Yes. The MPIA4015V2-3R3-R and B82464G4332M000 are both AEC-Q200 qualified, maintaining automotive-grade reliability standards equivalent to the original MPIA4040R2-3R3-R.

Q: What is the impact of increased DC resistance in the MPIA4015V2-3R3-R?

A: The DC resistance increase from 76 mOhm to 92 mOhm results in proportionally higher resistive losses (I²R). For a 2.6 A circuit, this represents an additional power dissipation of approximately 0.11 mW. This increase is negligible in most applications but should be evaluated in thermally constrained designs.

Q: Can the B82464G4332M000 be used in space-constrained applications?

A: The B82464G4332M000 physical dimensions (10.40mm x 10.40mm x 4.80mm) are significantly larger than the original MPIA4040R2-3R3-R (4.45mm x 4.06mm x 1.50mm). PCB layout compatibility must be verified before selection. The MPIA4015V2-3R3-R maintains comparable dimensions to the original part and is preferred for space-constrained designs.

Q: What is the Moisture Sensitivity Level (MSL) for all parts?

A: All three parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly processes.

Q: Are the substitute parts RoHS compliant?

A: The MPIA4015V2-3R3-R is RoHS Compliant. The B82464G4332M000 is ROHS3 Compliant. RoHS compliance status for the original MPIA4040R2-3R3-R is not specified in the provided data.