252010CDMCDS-2R2MC Equivalent & Substitute Parts

Part Overview

The 252010CDMCDS-2R2MC is a 2.2 µH shielded inductor manufactured by Sumida America Components Inc., rated for 2.2 A continuous current with a DC resistance of 103 mOhm. This component is designed for surface mount applications in the 1008 (2520 Metric) package format. The part is classified as obsolete, making identification of equivalent substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

252010CDMCDS-2R2MC

Sumida America Components Inc.In Stock: 1260252010CDMCDS-2R2MC Datasheet

Current PartRFQ

SRP2512-2R2M

Bourns Inc.In Stock: 518455SRP2512-2R2M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 252010CDMCDS-2R2MC is determined by strict equivalence across the following critical parameters:

Inductance Value: 2.2 µH with ±20% tolerance is the primary functional requirement.

Package Format: 1008 (2520 Metric) surface mount package ensures mechanical and electrical compatibility with existing PCB layouts.

Current Rating: The substitute must support the application's current demands. The original part is rated for 2.2 A continuous current with 2.4 A saturation current.

DC Resistance: DCR of 103 mOhm establishes the resistive losses in the inductor. Substitute parts must maintain comparable DCR values to preserve circuit performance characteristics.

Shielding: Shielded construction is required to minimize electromagnetic interference in the application.

Compliance Standards: RoHS3 compliance and MSL 1 rating ensure regulatory conformance and handling compatibility.

The substitute part SRP2512-2R2M meets all these criteria within the specified tolerances and operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The SRP2512-2R2M from Bourns Inc. is the qualified substitute for the obsolete 252010CDMCDS-2R2MC. Selection is based on the following engineering factors:

Functional Equivalence: Both parts deliver 2.2 µH inductance with identical ±20% tolerance and shielded construction in the 1008 (2520 Metric) package.

Current Handling: The SRP2512-2R2M is rated for 2.1 A continuous current, which is within 95% of the original 2.2 A rating. The saturation current of 3.0 A exceeds the original 2.4 A specification, providing additional margin.

Resistive Characteristics: DC resistance of 104 mOhm maximum is equivalent to the original 103 mOhm specification, with negligible impact on circuit performance.

Compliance and Availability: The SRP2512-2R2M holds active product status with ROHS3 compliance and MSL 1 rating, ensuring long-term availability and regulatory conformance. The extended operating temperature range of -40°C ~ 125°C provides additional thermal margin compared to the original -40°C ~ 105°C specification.

Mechanical Compatibility: Identical package dimensions and surface mount configuration enable direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the SRP2512-2R2M directly replace the 252010CDMCDS-2R2MC without circuit modification?

A: Yes. Both inductors share identical inductance values, tolerances, package dimensions, and shielding characteristics. The DC resistance values are equivalent within engineering tolerances. Direct substitution is supported without circuit redesign.

Q: What is the significance of the 0.1 A difference in current rating between the two parts?

A: The SRP2512-2R2M is rated for 2.1 A continuous current versus the original 2.2 A. This 4.5% difference is within typical application margins. The substitute's higher saturation current (3.0 A vs. 2.4 A) provides additional headroom for transient conditions.

Q: Are there any thermal considerations when substituting these parts?

A: The SRP2512-2R2M operates across a wider temperature range (-40°C ~ 125°C) compared to the original part (-40°C ~ 105°C). This extended range provides additional thermal margin and is beneficial for applications with elevated ambient temperatures.

Q: Do both parts require identical PCB footprints?

A: Yes. Both the 252010CDMCDS-2R2MC and SRP2512-2R2M use the 1008 (2520 Metric) package with identical dimensions of 0.098" L x 0.079" W (2.50mm x 2.00mm). Existing PCB layouts require no modification.

Q: What is the difference between the core materials of these inductors?

A: The original Sumida part does not specify core material in the provided data. The Bourns SRP2512-2R2M uses an iron powder drum core construction. Both deliver equivalent electrical performance at the specified inductance and current ratings.

Q: Are both parts RoHS compliant?

A: Yes. Both the 252010CDMCDS-2R2MC and SRP2512-2R2M are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory conformance and standard handling procedures.

Q: Why is the original part classified as obsolete?

A: The 252010CDMCDS-2R2MC is marked obsolete by the manufacturer, indicating discontinued production. The SRP2512-2R2M from Bourns maintains active product status with established supply chain availability.