MPIA4040R4-3R3-R Equivalent & Substitute Parts

Part Overview

The MPIA4040R4-3R3-R is a 3.3 µH shielded molded inductor manufactured by Eaton - Electronics Division, rated for 3.3 A continuous current with a DC resistance of 49 mOhm. 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 temperature range of -55°C to 125°C.

Substiute Parts

MPIA4040R4-3R3-R

Eaton - Electronics DivisionIn Stock: 12359MPIA4040R4-3R3-R Datasheet

Current PartRFQ

MPIA4020V2-3R3-R

Eaton - Electronics DivisionIn Stock: 975MPIA4020V2-3R3-R Datasheet

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B82464G4332M000

EPCOS - TDK ElectronicsIn Stock: 9562B82464G4332M000 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MPIA4040R4-3R3-R are selected based on the following critical electrical and mechanical parameters:

Primary Matching Criteria:

• Inductance value: 3.3 µH (fixed requirement)
• Current rating: minimum 3.3 A continuous
• Shielding: shielded configuration
• Mounting type: surface mount
• AEC-Q200 qualification
• Tolerance: ±20%
• Moisture sensitivity: MSL 1

Secondary Compatibility Factors:

• DC resistance within acceptable operating limits
• Saturation current sufficient for application demands
• Operating temperature range: minimum -55°C to 125°C
• Inductance test frequency: 100 kHz

The two substitute parts identified meet these core requirements while offering variations in DC resistance, saturation current, core material, and physical dimensions. These variations allow for design flexibility based on specific thermal and current handling requirements.

Parameter Comparison

Engineering Selection Recommendations

MPIA4020V2-3R3-R (Eaton - Electronics Division)

This substitute maintains identical inductance, current rating, and core material composition to the main part. As an active product from the same manufacturer, it provides direct functional equivalence with improved availability. The higher DC resistance (85 mOhm max versus 49 mOhm) results in increased power dissipation and should be evaluated for thermal impact in the application. The saturation current of 4.0 A is slightly lower than the main part's 4.5 A. This part is RoHS3 compliant and REACH unaffected, meeting modern regulatory requirements.

B82464G4332M000 (EPCOS - TDK Electronics)

This substitute offers superior electrical performance with significantly lower DC resistance (12 mOhm max) and higher saturation current (5.9 A), enabling operation with reduced thermal losses and improved current handling margin. The ferrite drum core wirewound construction differs from the metal composite molded design of the main part. The extended operating temperature range (-55°C to 150°C) provides additional thermal headroom. Physical dimensions are substantially larger (10.40mm x 10.40mm versus 4.45mm x 4.06mm), requiring PCB layout verification. This part is RoHS3 compliant and REACH unaffected.

Both substitutes carry AEC-Q200 qualification and MSL 1 moisture sensitivity rating, ensuring compatibility with automotive and high-reliability applications.

Frequently Asked Questions (FAQ)

Q: Can MPIA4020V2-3R3-R be used as a direct replacement for MPIA4040R4-3R3-R?

A: Yes, within thermal design constraints. Both parts share identical inductance (3.3 µH), current rating (3.3 A), tolerance (±20%), operating temperature range (-55°C to 125°C), and AEC-Q200 qualification. The MPIA4020V2-3R3-R exhibits higher DC resistance (85 mOhm max versus 49 mOhm), resulting in increased power dissipation. Circuit thermal analysis is required to confirm acceptable operating conditions.

Q: What are the key differences between MPIA4020V2-3R3-R and B82464G4332M000?

A: The primary differences are core material, DC resistance, current rating, and physical size. MPIA4020V2-3R3-R uses metal composite core material with 85 mOhm DCR and 3.3 A rating. B82464G4332M000 uses ferrite drum core wirewound construction with 12 mOhm DCR and 5.5 A rating. B82464G4332M000 is physically larger (10.40mm x 10.40mm versus 4.95mm x 4.20mm) and operates to 150°C maximum temperature.

Q: Is the B82464G4332M000 suitable for space-constrained applications?

A: No. The B82464G4332M000 has significantly larger physical dimensions (0.409" L x 0.409" W x 0.189" H) compared to the main part (0.175" L x 0.160" W x 0.079" H). PCB layout verification is mandatory before selection for space-limited designs.

Q: Do all three parts meet automotive qualification standards?

A: Yes. All three parts carry AEC-Q200 qualification, confirming suitability for automotive applications. All three maintain MSL 1 moisture sensitivity rating.

Q: Which substitute offers the lowest power dissipation?

A: B82464G4332M000 offers the lowest power dissipation with 12 mOhm max DC resistance, compared to 49 mOhm (main part) and 85 mOhm max (MPIA4020V2-3R3-R). Lower DC resistance reduces I²R losses in the inductor.

Q: Are there packaging differences between the substitutes?

A: Yes. MPIA4040R4-3R3-R uses nonstandard packaging. MPIA4020V2-3R3-R is supplied in Tape & Reel (TR) format with 2-SMD, J-Lead package configuration. B82464G4332M000 is supplied in Tape & Reel (TR) format with nonstandard package configuration. Verify compatibility with assembly equipment and processes.

Q: What is the saturation current margin for each part?

A: MPIA4040R4-3R3-R: 4.5 A saturation with 3.3 A rating (1.36× margin). MPIA4020V2-3R3-R: 4.0 A saturation with 3.3 A rating (1.21× margin). B82464G4332M000: 5.9 A saturation with 5.5 A rating (1.07× margin). Higher saturation margin provides greater protection against current transients.