CD43NP-2R2MC Equivalent & Substitute Parts

Part Overview

The CD43NP-2R2MC is a 2.2 µH unshielded ferrite core inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 2.25 A continuous current with a maximum DC resistance of 71.2 mOhm. The part is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and component availability options for applications requiring compatible electrical and mechanical specifications.

Substiute Parts

CD43NP-2R2MC

Sumida America Components Inc.In Stock: 12275CD43NP-2R2MC Datasheet

Current PartRFQ

SDR0403-2R2ML

Bourns Inc.In Stock: 10153SDR0403-2R2ML Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD43NP-2R2MC is determined by strict equivalence of core electrical and mechanical parameters. The substitute part SDR0403-2R2ML qualifies based on the following criteria:

Electrical Equivalence Parameters:

• Identical inductance value: 2.2 µH
• Identical inductance tolerance: ±20%
• Current rating equal or greater: 2.6 A (exceeds 2.25 A requirement)
• DC resistance within acceptable range: 47 mOhm Max (lower than 71.2 mOhm)
• Identical core material: Ferrite
• Identical shielding configuration: Unshielded

Mechanical Equivalence Parameters:

• Identical package dimensions: 4.50mm L x 4.00mm W x 3.50mm H
• Identical mounting type: Surface Mount
• Identical packaging format: Tape & Reel (TR)

Compliance Equivalence:

• RoHS3 compliant
• MSL 1 rating
• Identical ECCN and HTSUS classifications

Parameter Comparison

Engineering Selection Recommendations

Both the CD43NP-2R2MC and SDR0403-2R2ML are Active product status components with full RoHS3 compliance and MSL 1 moisture sensitivity ratings. The SDR0403-2R2ML substitute provides equivalent electrical performance with improved specifications: higher current saturation rating (2.6 A versus 2.25 A), lower DC resistance (47 mOhm versus 71.2 mOhm), and extended operating temperature range (-40°C to 125°C versus -40°C to 100°C). Both components share identical package dimensions and mounting characteristics, enabling direct footprint compatibility. Selection between these parts is based on supply availability, lead time requirements, and design margin preferences.

Frequently Asked Questions (FAQ)

Q: Can SDR0403-2R2ML be used as a direct replacement for CD43NP-2R2MC?

A: Yes. Both components have identical inductance values (2.2 µH), identical tolerance specifications (±20%), identical package dimensions (4.50mm x 4.00mm x 3.50mm), and identical mounting types (Surface Mount). The substitute part meets or exceeds all electrical requirements of the main part.

Q: What are the key differences between these two inductors?

A: The primary differences are manufacturer (Sumida versus Bourns), DC resistance (71.2 mOhm versus 47 mOhm), current rating (2.25 A versus 2.6 A), and operating temperature range (-40°C to 100°C versus -40°C to 125°C). The SDR0403-2R2ML provides superior electrical performance in these parameters.

Q: Are the package dimensions identical?

A: Yes. Both components have identical package dimensions of 4.50mm length, 4.00mm width, and 3.50mm seated height. Both use nonstandard package cases and are supplied in Tape & Reel format.

Q: Do both parts have the same compliance certifications?

A: Yes. Both the CD43NP-2R2MC and SDR0403-2R2ML are RoHS3 compliant, have MSL 1 moisture sensitivity ratings, and share identical ECCN (EAR99) and HTSUS (8504.50.4000) classifications.

Q: What is the inductance tolerance for both parts?

A: Both inductors have an inductance tolerance of ±20%, meaning the actual inductance value will fall within the range of 1.76 µH to 2.64 µH.

Q: Can I use the substitute part in high-temperature applications?

A: The SDR0403-2R2ML operates to 125°C, providing a 25°C temperature margin advantage over the CD43NP-2R2MC, which operates to 100°C. For applications requiring operation above 100°C, the substitute part is the appropriate selection.