MPIA4040R4-4R7-R Equivalent & Substitute Parts

Part Overview

The MPIA4040R4-4R7-R is a 4.7 µH shielded molded inductor manufactured by Eaton - Electronics Division, rated for 2.9 A continuous current with 67mOhm DC resistance. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing production and maintenance applications. The part operates across the industrial temperature range of -55°C to 125°C and meets AEC-Q200 automotive qualification standards. Due to its obsolete status, equivalent substitutes from active product lines are required to ensure supply chain continuity and design flexibility.

Substiute Parts

MPIA4040R4-4R7-R

Eaton - Electronics DivisionIn Stock: 796MPIA4040R4-4R7-R Datasheet

Current PartRFQ

MPIA4020V2-4R7-R

Eaton - Electronics DivisionIn Stock: 3704MPIA4020V2-4R7-R Datasheet

SimilarRFQ

IHLP1616BZER4R7M11

Vishay DaleIn Stock: 17257IHLP1616BZER4R7M11 Datasheet

DirectRFQ

B82464G4472M000

EPCOS - TDK ElectronicsIn Stock: 9655B82464G4472M000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MPIA4040R4-4R7-R is determined by the following mandatory criteria:

Primary Electrical Requirements:

• Inductance value: 4.7 µH (exact match required)
• Tolerance: ±20% (matching specification)
• Operating temperature range: -55°C to 125°C minimum
• Shielding: Shielded construction required

Current Performance Criteria:

• Current rating must equal or exceed 2.9 A
• Saturation current must equal or exceed 3.9 A
• DC resistance must not exceed 67mOhm (lower values acceptable for improved thermal performance)

Physical and Assembly Requirements:

• Mounting type: Surface Mount (SMD)
• Package classification: Nonstandard or equivalent footprint
• Height seated maximum: 2.00mm (0.079")

Compliance and Status:

• Product status: Active preferred (ensures ongoing availability)
• Ratings: AEC-Q200 compliance preferred for automotive applications
• Moisture sensitivity: MSL 1 (Unlimited) acceptable

The three substitute parts listed below meet these criteria with varying trade-offs in current rating, DC resistance, and physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

MPIA4020V2-4R7-R (Eaton - Electronics Division)

This substitute is the closest functional equivalent from the same manufacturer. It maintains identical inductance, tolerance, and operating temperature range. The part is active with robust inventory availability (3662 units). Current rating of 2.7 A is marginally below the main part specification (2.9 A), and DC resistance increases to 118mOhm maximum, resulting in higher power dissipation. Saturation current of 3.2 A is also reduced. This part is suitable for applications where the 2.7 A rating is acceptable and thermal dissipation can accommodate the higher DCR. AEC-Q200 compliance and RoHS3 certification are confirmed. Physical dimensions increase slightly (4.95 x 4.20mm vs. 4.45 x 4.06mm), requiring PCB layout verification.

IHLP1616BZER4R7M11 (Vishay Dale)

This substitute offers identical physical footprint (4.45 x 4.06mm) and height (2.00mm) to the main part, simplifying PCB integration. The part is active with highest inventory availability (17200 units). However, current rating of 1.7 A and saturation current of 1.75 A are significantly below the main part requirements. DC resistance of 105mOhm maximum is higher than the main part. This substitute is applicable only in applications where continuous current does not exceed 1.7 A. RoHS3 compliance is confirmed. AEC-Q200 rating is not specified. Self-resonant frequency of 29MHz is documented.

B82464G4472M000 (EPCOS - TDK Electronics)

This substitute provides the highest current rating (4.9 A) and saturation current (5.2 A), with significantly lower DC resistance of 15mOhm maximum, offering superior thermal performance. The part is active with substantial inventory (9615 units). Operating temperature range extends to 150°C, exceeding the main part specification. AEC-Q200 compliance is confirmed. However, physical dimensions are substantially larger (10.40 x 10.40mm footprint, 4.80mm height), requiring significant PCB redesign. The construction type differs (Drum Core, Wirewound vs. Molded), and core material is ferrite rather than metal composite. This substitute is suitable for applications with higher current requirements and available PCB space. RoHS3 compliance is confirmed.

Frequently Asked Questions (FAQ)

Q: Can MPIA4020V2-4R7-R replace MPIA4040R4-4R7-R in all applications?

A: No. The MPIA4020V2-4R7-R has a lower current rating (2.7 A vs. 2.9 A) and higher DC resistance (118mOhm vs. 67mOhm). Substitution is valid only if the application's continuous current requirement does not exceed 2.7 A and thermal dissipation can accommodate the additional 51mOhm resistance increase. Verify saturation current margin; the substitute provides 3.2 A saturation versus 3.9 A in the main part.

Q: Is IHLP1616BZER4R7M11 a direct replacement?

A: IHLP1616BZER4R7M11 matches the physical footprint and height exactly, but the current rating of 1.7 A is insufficient for applications requiring 2.9 A continuous current. This substitute is applicable only in low-current designs. The part lacks specified AEC-Q200 certification, which may be critical for automotive applications.

Q: Why is B82464G4472M000 significantly larger?

A: B82464G4472M000 uses drum core wirewound construction with ferrite core material, which requires larger physical dimensions to achieve the same inductance value at higher current ratings. The 10.40 x 10.40mm footprint and 4.80mm height represent a trade-off for superior current handling (4.9 A) and lower DC resistance (15mOhm). PCB layout redesign is mandatory for this substitute.

Q: What is the impact of higher DC resistance in substitute parts?

A: Higher DC resistance increases power dissipation according to P = I²R. MPIA4020V2-4R7-R with 118mOhm DCR dissipates approximately 0.86 watts at 2.7 A continuous current, compared to 0.56 watts for the main part at 2.9 A. Thermal management and PCB copper area must be evaluated accordingly.

Q: Are all substitute parts RoHS3 compliant?

A: MPIA4020V2-4R7-R, IHLP1616BZER4R7M11, and B82464G4472M000 are all confirmed RoHS3 compliant. The main part MPIA4040R4-4R7-R does not specify RoHS3 status due to its obsolete classification.

Q: Which substitute offers the best thermal performance?

A: B82464G4472M000 provides the lowest DC resistance at 15mOhm maximum, resulting in minimal power dissipation. At rated current of 4.9 A, dissipation is approximately 0.36 watts. However, physical size constraints may prohibit its use in space-limited designs.

Q: Can substitutes be mixed in the same design?

A: No. All inductors in a circuit must meet the same electrical and thermal specifications. Mixing different current ratings or DC resistance values will result in unequal current distribution and thermal stress. Select a single substitute part for the entire application.

Q: What is the significance of self-resonant frequency?

A: Self-resonant frequency indicates the frequency at which the inductor transitions from inductive to capacitive behavior. MPIA4020V2-4R7-R (24MHz), IHLP1616BZER4R7M11 (29MHz), and B82464G4472M000 (37MHz) all operate well above typical switching frequencies in power conversion applications, ensuring stable inductive behavior across the intended frequency range.

Q: Is packaging format (Tape & Reel vs. Bulk) a substitution factor?

A: Packaging format affects supply chain logistics but does not impact electrical or mechanical compatibility. MPIA4020V2-4R7-R and B82464G4472M000 are supplied in Tape & Reel format, while IHLP1616BZER4R7M11 is also Tape & Reel. Confirm packaging availability with suppliers for production volume requirements.