MP2A-470-R Equivalent & Substitute Parts

Part Overview

The MP2A-470-R is a 47 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 640 mA continuous current with a DC resistance of 727 mOhm and operates across the temperature range of -40°C to 85°C. The part is RoHS Compliant and carries an MSL rating of 1 (Unlimited), indicating suitability for standard storage and handling conditions.

The MP2A-470-R is classified as Active product status, confirming ongoing availability and support. Substitute parts are identified when the primary component becomes unavailable, when design requirements necessitate alternative core materials or shielding configurations, or when thermal operating ranges require extension beyond the original specification.

Substiute Parts

MP2A-470-R

Eaton - Electronics DivisionIn Stock: 1168MP2A-470-R Datasheet

Current PartRFQ

VLCF5020T-470MR40

TDK CorporationIn Stock: 1882VLCF5020T-470MR40 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP2A-470-R is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 47 µH (fixed requirement)
• Inductance tolerance: ±20% (fixed requirement)
• Mounting type: Surface Mount (fixed requirement)
• Inductance test frequency: 100 kHz (fixed requirement)

Secondary Compatibility Parameters:

• Current rating must meet or exceed 640 mA continuous operation
• DC resistance must not exceed 727 mOhm
• Operating temperature range must encompass -40°C to 85°C minimum
• RoHS compliance status must be maintained
• MSL rating must be 1 or equivalent (Unlimited)

Allowable Variations:

• Core material may differ (MPP, Ferrite, or equivalent)
• Shielding configuration may differ (Shielded or Unshielded)
• Physical dimensions may vary within surface mount constraints
• Saturation current may differ provided minimum 640 mA is maintained

The VLCF5020T-470MR40 qualifies as a substitute part based on matching inductance, tolerance, mounting type, and test frequency. Variations in core material (Ferrite vs. MPP), shielding (Shielded vs. Unshielded), and physical dimensions are permissible within the substitution framework.

Parameter Comparison

Engineering Selection Recommendations

MP2A-470-R (Primary Selection): The MP2A-470-R remains the preferred component when the full 640 mA continuous current rating is required. The unshielded MPP core design provides the specified performance envelope. Active product status ensures ongoing availability. RoHS Compliance and MSL 1 rating support standard manufacturing and storage protocols.

VLCF5020T-470MR40 (Substitute Selection): The VLCF5020T-470MR40 serves as a substitute when the MP2A-470-R is unavailable and circuit design permits operation at reduced current levels (400 mA maximum continuous). The ferrite core with shielding configuration differs from the original design but maintains the 47 µH inductance specification at 100 kHz test frequency. The extended operating temperature range (-40°C to 105°C) provides thermal margin beyond the original specification. Smaller physical dimensions (5.00 mm × 5.00 mm) may offer PCB layout advantages in space-constrained applications. Both components maintain RoHS compliance and MSL 1 ratings.

Critical Limitation: The VLCF5020T-470MR40 current rating of 400 mA is 240 mA below the MP2A-470-R specification. This substitute is unsuitable for applications requiring sustained 640 mA operation or saturation current performance at 660 mA.

Frequently Asked Questions (FAQ)

Q: Can the VLCF5020T-470MR40 directly replace the MP2A-470-R in all applications?

A: No. The VLCF5020T-470MR40 has a maximum continuous current rating of 400 mA, compared to the MP2A-470-R rating of 640 mA. Substitution is valid only when circuit design operates at or below 400 mA continuous current and 400 mA saturation current.

Q: What is the impact of the different core materials (MPP vs. Ferrite)?

A: Core material differences affect frequency response, temperature stability, and saturation characteristics. The MP2A-470-R uses Molybdenum Permalloy (MPP) core; the VLCF5020T-470MR40 uses Ferrite core. Both maintain the 47 µH inductance specification at 100 kHz test frequency. Material selection should be verified against specific circuit performance requirements.

Q: Does the shielding difference affect substitution eligibility?

A: Shielding configuration differs between parts (MP2A-470-R is unshielded; VLCF5020T-470MR40 is shielded). Shielded inductors reduce electromagnetic interference coupling to adjacent components. If the original design relied on unshielded operation, the shielded substitute may alter circuit behavior. Verification against EMI/EMC requirements is necessary.

Q: Are the physical dimension differences significant?

A: The VLCF5020T-470MR40 has a smaller footprint (5.00 mm × 5.00 mm vs. 7.50 mm × 5.20 mm) and slightly greater height (2.00 mm vs. 1.80 mm). PCB layout compatibility must be confirmed. The smaller footprint may provide design flexibility; the increased height may create clearance constraints.

Q: Do both parts meet current compliance requirements?

A: Yes. The MP2A-470-R is RoHS Compliant. The VLCF5020T-470MR40 is ROHS3 Compliant. Both maintain MSL 1 (Unlimited) ratings, supporting standard manufacturing and storage conditions without special moisture control measures.

Q: What is the temperature operating range difference?

A: The MP2A-470-R operates from -40°C to 85°C. The VLCF5020T-470MR40 operates from -40°C to 105°C. The substitute provides 20°C additional upper temperature margin. If the application requires operation above 85°C, the substitute offers extended thermal capability.

Q: How do DC resistance values compare?

A: The MP2A-470-R has 727 mOhm DC resistance. The VLCF5020T-470MR40 has 748 mOhm maximum DC resistance. The 21 mOhm difference represents approximately 2.9% variance and falls within acceptable engineering tolerance for most applications. Power dissipation calculations should account for this variance.