CDH63NP-4R7MC Equivalent & Substitute Parts

Part Overview

The CDH63NP-4R7MC is a 4.7 µH unshielded wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 1.55 A continuous current with a maximum DC resistance of 105mOhm and operates at an inductance test frequency of 100 kHz. The part is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

CDH63NP-4R7MC

Sumida America Components Inc.In Stock: 1088CDH63NP-4R7MC Datasheet

Current PartRFQ

B82462A4472M000

EPCOS - TDK ElectronicsIn Stock: 8124B82462A4472M000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH63NP-4R7MC is determined by the following critical parameters:

Inductance Value: The substitute must maintain 4.7 µH ±20% inductance at 100 kHz test frequency.

Current Rating: The substitute must support a minimum continuous current rating of 1.55 A, with saturation current (Isat) at or above 1.8 A to prevent core saturation under transient conditions.

DC Resistance: The substitute must not exceed 105 mOhm maximum DC resistance to maintain equivalent power dissipation characteristics.

Shielding Configuration: The substitute must be unshielded to match the electromagnetic profile of the original component.

Mounting and Package: The substitute must be surface mount compatible with nonstandard package dimensions within acceptable mechanical tolerances.

Compliance Requirements: The substitute must maintain ROHS3 compliance and MSL 1 rating for manufacturing process compatibility.

The B82462A4472M000 meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The B82462A4472M000 is the qualified substitute for the obsolete CDH63NP-4R7MC based on the following engineering criteria:

Electrical Performance: The substitute meets or exceeds all critical electrical parameters. Current rating increases from 1.55 A to 1.65 A, saturation current increases from 1.8 A to 2.8 A, and DC resistance improves from 105 mOhm to 80 mOhm maximum. These improvements provide enhanced thermal performance and reduced power dissipation in the application circuit.

Compliance and Certification: Both components maintain ROHS3 compliance and MSL 1 rating. The B82462A4472M000 carries AEC-Q200 qualification, indicating automotive-grade reliability testing. The substitute operates across the temperature range of -55°C to 150°C.

Product Availability: The CDH63NP-4R7MC is obsolete with limited remaining inventory. The B82462A4472M000 is in active production status with substantial inventory availability, ensuring long-term procurement continuity.

Mechanical Compatibility: Physical dimensions are within acceptable tolerance for surface mount PCB assembly. The substitute's slightly smaller footprint (6.00mm x 6.00mm versus 6.30mm x 6.10mm) and marginally increased height (3.00mm versus 2.90mm) present no functional constraints for standard PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the B82462A4472M000 directly replace the CDH63NP-4R7MC in existing designs?

A: Yes. The substitute meets all electrical specifications required by the original component. Inductance value, tolerance, current rating, saturation current, and DC resistance are all compatible. Surface mount mounting type and nonstandard package configuration are identical. Physical dimensions are within acceptable tolerance for PCB assembly.

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

A: The primary differences are manufacturer origin, product status, and core construction. The B82462A4472M000 uses drum core construction versus the CDH63NP-4R7MC wirewound construction, is manufactured by EPCOS - TDK Electronics versus Sumida America Components Inc., and is in active production versus obsolete status. The substitute provides superior electrical performance with lower DC resistance and higher saturation current.

Q: Are there any thermal or frequency response differences?

A: The B82462A4472M000 specifies a self-resonant frequency of 50 MHz and operating temperature range of -55°C to 150°C. The CDH63NP-4R7MC does not specify these parameters in the provided data. Both components are tested at 100 kHz inductance frequency. The substitute's lower DC resistance (80 mOhm versus 105 mOhm) results in reduced resistive heating at rated current.

Q: Is the packaging format compatible with existing assembly processes?

A: Both components are surface mount with nonstandard package types. The B82462A4472M000 is supplied in Tape & Reel (TR) format, which is standard for automated PCB assembly. Footprint dimensions are within acceptable tolerance. Verify PCB layout accommodates the substitute's dimensions of 6.00mm x 6.00mm length and width with 3.00mm maximum seated height.

Q: What compliance certifications apply to the substitute?

A: The B82462A4472M000 is ROHS3 compliant, MSL 1 rated, and carries AEC-Q200 automotive qualification. REACH status is unaffected. These certifications ensure compatibility with modern manufacturing standards and automotive applications where applicable.