MPIA4040R4-220-R Equivalent & Substitute Parts

Part Overview

The MPIA4040R4-220-R is a 22 µH shielded molded inductor manufactured by Eaton - Electronics Division. This component is rated for 1.3 A continuous current with a DC resistance of 316 mOhm and operates across the temperature range of -55°C to 125°C. The part carries AEC-Q200 qualification and is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing design support and procurement.

Substiute Parts

MPIA4040R4-220-R

Eaton - Electronics DivisionIn Stock: 864MPIA4040R4-220-R Datasheet

Current PartRFQ

MPIA4020V2-220-R

Eaton - Electronics DivisionIn Stock: 3915MPIA4020V2-220-R Datasheet

SimilarRFQ

B82464G4223M000

EPCOS - TDK ElectronicsIn Stock: 7959B82464G4223M000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPIA4040R4-220-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 22 µH (fixed)
• Inductance tolerance: ±20% (fixed)
• Shielding: Shielded (required for EMI performance)
• Mounting type: Surface Mount (required for PCB compatibility)
• Inductance test frequency: 100 kHz (measurement standard)
• AEC-Q200 qualification (automotive-grade reliability)
• Moisture Sensitivity Level: 1 (Unlimited) (handling and storage compatibility)

Secondary Compatibility Parameters:

• Operating temperature range: -55°C to 125°C minimum
• Current rating: ≥1.3 A (functional requirement)
• DC resistance: acceptable range dependent on circuit design
• Package dimensions: must fit PCB layout constraints

The two substitute parts listed below satisfy the primary matching criteria and maintain AEC-Q200 compliance. Differences in DC resistance, saturation current, and physical dimensions are documented for circuit-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

MPIA4020V2-220-R (Eaton - Electronics Division):

This substitute maintains identical inductance, tolerance, operating temperature range, and core material composition to the main part. Both components are manufactured by Eaton and share the same shielded molded inductor architecture. The MPIA4020V2-220-R is classified as active product status with RoHS compliance, ensuring long-term availability and regulatory alignment. The current rating of 1.2 A is marginally lower than the main part's 1.3 A specification; this substitute is suitable for applications where the design current does not exceed 1.2 A. DC resistance increases from 316 mOhm to 402 mOhm maximum, resulting in higher power dissipation. Physical dimensions are slightly larger (4.95 x 4.20 mm versus 4.45 x 4.06 mm), requiring PCB layout verification. This option provides the closest functional equivalence within the Eaton product family.

B82464G4223M000 (EPCOS - TDK Electronics):

This substitute matches the 22 µH inductance and ±20% tolerance specification with full AEC-Q200 qualification. The component features a ferrite drum core wirewound construction, differing from the metal composite molded design of the main part. Current rating of 2.25 A and saturation current of 2.5 A exceed the main part requirements, providing design margin. DC resistance of 52 mOhm maximum is significantly lower, reducing power dissipation. Operating temperature range extends to 150°C, exceeding the main part's 125°C maximum. The B82464G4223M000 is classified as active with ROHS3 compliance. Physical dimensions are substantially larger (10.40 x 10.40 x 4.80 mm), requiring significant PCB layout modification. This option is suitable for applications requiring lower DC resistance and higher current capacity, provided space constraints permit the larger footprint.

Frequently Asked Questions (FAQ)

Q: Can MPIA4020V2-220-R directly replace MPIA4040R4-220-R without circuit modification?

A: Direct replacement is possible if the application current does not exceed 1.2 A. The 1.3 A current rating of the main part versus 1.2 A of the substitute represents a 7.7% reduction. If the design operates at or near 1.3 A, the substitute may not provide adequate margin. Additionally, increased DC resistance (402 mOhm versus 316 mOhm) will increase power dissipation by approximately 27%, requiring thermal analysis. Physical dimensions are slightly larger; verify PCB layout compatibility.

Q: What are the key differences between the two substitute parts?

A: MPIA4020V2-220-R is a molded inductor with metal composite core, manufactured by Eaton. B82464G4223M000 is a wirewound inductor with ferrite core, manufactured by EPCOS - TDK Electronics. The EPCOS part offers lower DC resistance (52 mOhm versus 402 mOhm), higher current rating (2.25 A versus 1.2 A), and extended temperature range (-55 to 150°C versus -55 to 125°C). However, the EPCOS part is significantly larger (10.40 x 10.40 mm versus 4.95 x 4.20 mm), which may not fit existing PCB layouts designed for the original component.

Q: Is the B82464G4223M000 suitable for high-frequency applications?

A: The B82464G4223M000 has a self-resonant frequency of 13 MHz, compared to the main part's unspecified self-resonant frequency. Both parts are tested at 100 kHz inductance measurement frequency. For applications operating significantly above 100 kHz, the self-resonant frequency characteristics must be evaluated against circuit requirements. The ferrite core construction of the EPCOS part may exhibit different frequency response characteristics compared to the metal composite core of the original part.

Q: Are all three parts AEC-Q200 qualified?

A: Yes. The main part MPIA4040R4-220-R, substitute MPIA4020V2-220-R, and substitute B82464G4223M000 all carry AEC-Q200 qualification, confirming automotive-grade reliability and qualification testing compliance.

Q: What is the impact of increased DC resistance in MPIA4020V2-220-R?

A: DC resistance increases from 316 mOhm to 402 mOhm maximum, representing a 27% increase. Power dissipation in the inductor is proportional to I²R. At 1.2 A, the MPIA4020V2-220-R dissipates approximately 0.58 W, compared to 0.48 W for the main part at 1.3 A. This increased dissipation may require thermal management evaluation, particularly in high-ambient-temperature environments or designs with limited thermal dissipation capability.

Q: Can the B82464G4223M000 be used in space-constrained applications?

A: No. The B82464G4223M000 measures 10.40 x 10.40 x 4.80 mm, compared to the main part's 4.45 x 4.06 x 2.00 mm footprint. The substitute is approximately 2.3 times larger in length and width, and 2.4 times taller. Applications with strict PCB space constraints must use MPIA4020V2-220-R or redesign the PCB layout to accommodate the larger EPCOS component.

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

A: All three parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These components do not require special moisture-controlled storage or handling procedures, simplifying supply chain management and inventory control.