MP2A-100-R Equivalent & Substitute Parts Reference

Part Overview

The MP2A-100-R is a 10 µH fixed unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 1.29 A continuous current with a DC resistance of 179 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. As an Active product with 968 pieces in stock, the MP2A-100-R serves applications requiring fixed inductance values in compact surface mount packages. Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while accommodating different core materials, shielding configurations, or thermal operating ranges.

Substiute Parts

MP2A-100-R

Eaton - Electronics DivisionIn Stock: 1014MP2A-100-R Datasheet

Current PartRFQ

VLCF4018T-100MR74-2

TDK CorporationIn Stock: 18482VLCF4018T-100MR74-2 Datasheet

SimilarRFQ

VLCF4020T-100MR85

TDK CorporationIn Stock: 30872VLCF4020T-100MR85 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP2A-100-R are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Electrical Parameters (Non-Negotiable):

• Inductance value must equal 10 µH
• Inductance tolerance must be ±20% or tighter
• Current rating must equal or exceed 1.29 A
• DC resistance must be within acceptable limits for the application

Mechanical Parameters (Application-Dependent):

• Mounting type must be Surface Mount
• Package dimensions must be compatible with PCB layout constraints
• Height must accommodate board-level clearances

Environmental & Compliance Parameters:

• Operating temperature range must cover the application requirement
• RoHS compliance status must meet regulatory requirements
• MSL rating must be suitable for manufacturing processes

The two substitute parts identified (VLCF4018T-100MR74-2 and VLCF4020T-100MR85) both maintain the 10 µH inductance specification and ±20% tolerance. However, both substitutes feature reduced current ratings (740 mA and 850 mA respectively) compared to the MP2A-100-R (1.29 A). These substitutes are suitable only for applications where the actual circuit current requirement does not exceed the substitute part's current rating. Both substitutes employ ferrite core material with shielding, differing from the unshielded MPP core of the main part.

Parameter Comparison

Engineering Selection Recommendations

MP2A-100-R Selection Criteria: The MP2A-100-R is the appropriate choice for applications requiring the full 1.29 A current rating with unshielded MPP core construction. This part is Active with established supply (968 pieces in stock) and meets RoHS Compliance requirements. The operating temperature range of -40°C to 85°C is suitable for standard industrial and commercial applications. The larger package footprint (7.50mm x 5.20mm) may be advantageous in applications where thermal dissipation or mechanical robustness is prioritized.

VLCF4018T-100MR74-2 Selection Criteria: This TDK substitute is suitable for applications where circuit current does not exceed 740 mA. The shielded ferrite core construction provides electromagnetic interference (EMI) containment compared to the unshielded MPP core. The extended operating temperature range (-40°C to 105°C) accommodates higher-temperature environments. The compact 4.00mm x 4.00mm footprint enables space-constrained PCB layouts. ROHS3 Compliance and MSL 1 rating confirm regulatory and manufacturing compatibility. Tape & Reel packaging supports automated assembly processes.

VLCF4020T-100MR85 Selection Criteria: This TDK substitute accommodates applications with current requirements up to 850 mA, providing intermediate current capacity between the main part and the VLCF4018T variant. The shielded ferrite core and extended temperature range (-40°C to 105°C) match the VLCF4018T characteristics. The 2.00mm maximum height (versus 1.80mm for other variants) requires verification against PCB clearance constraints. ROHS3 Compliance and MSL 1 rating confirm regulatory status. Cut Tape and Digi-Reel® packaging options provide flexibility in procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can VLCF4018T-100MR74-2 or VLCF4020T-100MR85 be used as direct replacements for MP2A-100-R?

A: Direct replacement is possible only if the application circuit current does not exceed the substitute part's current rating. VLCF4018T-100MR74-2 is limited to 740 mA, and VLCF4020T-100MR85 is limited to 850 mA, both below the MP2A-100-R rating of 1.29 A. If the circuit requires the full 1.29 A capacity, substitution is not permissible. If actual current is lower, substitution is electrically valid.

Q: What is the impact of switching from unshielded (MP2A-100-R) to shielded (VLCF variants) inductors?

A: Shielded inductors reduce electromagnetic field radiation and susceptibility to external magnetic interference. This change is beneficial in noise-sensitive applications but may alter circuit performance in applications specifically designed around unshielded inductor characteristics. The ferrite core material in shielded variants differs from the MPP core in the main part, affecting frequency response and saturation behavior.

Q: Are the package dimension differences significant?

A: Yes. The MP2A-100-R measures 7.50mm x 5.20mm, while both TDK substitutes measure 4.00mm x 4.00mm. The smaller footprint of TDK parts enables denser PCB layouts but requires verification that the design accommodates the different aspect ratio. Height differences (1.80mm for MP2A-100-R and VLCF4018T, 2.00mm for VLCF4020T) must be checked against board-level clearances and component stacking requirements.

Q: Do the substitute parts support the same operating temperature range?

A: No. The MP2A-100-R operates from -40°C to 85°C, while both TDK substitutes extend to -40°C to 105°C. If the application requires operation above 85°C, the TDK substitutes provide additional thermal margin. If the application is limited to 85°C or below, both parts are suitable.

Q: What are the packaging format differences?

A: MP2A-100-R is supplied in Tape & Reel (TR) format. VLCF4018T-100MR74-2 is also Tape & Reel. VLCF4020T-100MR85 offers both Cut Tape (CT) and Digi-Reel® options, providing flexibility for different procurement volumes and assembly equipment compatibility.

Q: How do DC resistance values compare?

A: MP2A-100-R has 179 mOhm DCR. VLCF4018T-100MR74-2 specifies 188 mOhm Max, and VLCF4020T-100MR85 specifies 185 mOhm Max. These differences are within 10 mOhm and result in minimal power dissipation variation for typical current levels. Applications sensitive to resistive losses should calculate actual power dissipation at the circuit's operating current.

Q: Are all three parts RoHS compliant?

A: Yes. MP2A-100-R is RoHS Compliant. Both TDK substitutes are ROHS3 Compliant, which represents an updated compliance standard. All three parts meet current regulatory requirements for hazardous substance restrictions.

Q: What is the MSL rating significance?

A: All three parts carry MSL 1 (Unlimited) rating, indicating they can be stored and handled under standard conditions without moisture sensitivity concerns. This simplifies supply chain management and manufacturing processes without requiring specialized dry-pack storage or baking procedures.