CDRH62NP-100MC Equivalent & Substitute Parts

Part Overview

The CDRH62NP-100MC is a 10 µH unshielded surface mount inductor manufactured by Sumida America Components Inc. This component is rated for 1.28 A continuous current with a maximum DC resistance of 170mOhm and operates across the temperature range of -40°C to 100°C. The part is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

CDRH62NP-100MC

Sumida America Components Inc.In Stock: 1054CDRH62NP-100MC Datasheet

Current PartRFQ

SPD62R-103M

API Delevan Inc.In Stock: 10468SPD62R-103M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDRH62NP-100MC is determined by the following critical parameters:

Inductance Value: The substitute must maintain 10 µH inductance within the specified ±20% tolerance band.

Current Rating: The substitute must support a minimum continuous current rating of 1.28 A. Higher current ratings are acceptable.

DC Resistance: The substitute must not exceed 170mOhm maximum DC resistance to maintain equivalent power dissipation characteristics.

Physical Dimensions: The substitute must conform to the nonstandard package dimensions of 0.260" L x 0.244" W x 3.00mm height to ensure mechanical compatibility with existing PCB layouts.

Surface Mount Configuration: The substitute must be a surface mount component compatible with standard SMD assembly processes.

Compliance Standards: The substitute must maintain ROHS3 compliance and MSL 1 rating for environmental and handling requirements.

The SPD62R-103M manufactured by API Delevan Inc. meets all these substitution criteria despite differences in shielding configuration and core material.

Parameter Comparison

Engineering Selection Recommendations

The SPD62R-103M is a direct functional substitute for the CDRH62NP-100MC based on the following engineering criteria:

Electrical Equivalence: Both components provide 10 µH inductance with identical tolerance specifications. The SPD62R-103M current rating of 1.4 A exceeds the required 1.28 A specification, providing operational margin. The DC resistance differential of 10mOhm (180mOhm versus 170mOhm) represents a 6% variance within acceptable engineering tolerances for inductor applications.

Mechanical Compatibility: Identical package dimensions ensure direct PCB layout compatibility without redesign requirements.

Compliance and Availability: The SPD62R-103M maintains ROHS3 compliance and MSL 1 rating, matching the original component specifications. Active product status ensures long-term procurement availability, addressing the obsolescence of the CDRH62NP-100MC.

Temperature Performance: The extended operating range of -55°C to 125°C provides superior thermal performance compared to the original -40°C to 100°C specification.

Shielding Consideration: The SPD62R-103M incorporates shielding, which provides electromagnetic interference (EMI) reduction benefits not present in the unshielded original design. This represents a functional enhancement for applications sensitive to radiated emissions.

Frequently Asked Questions (FAQ)

Q: Can the SPD62R-103M directly replace the CDRH62NP-100MC without PCB modifications?

A: Yes. Both components share identical package dimensions (0.260" L x 0.244" W x 0.118" H) and surface mount configuration, enabling direct substitution without PCB layout changes.

Q: Does the 10mOhm increase in DC resistance affect circuit performance?

A: The DC resistance increase from 170mOhm to 180mOhm represents a 6% variance. For most applications, this differential is within acceptable engineering tolerance. Power dissipation increases proportionally with current squared; at the rated 1.28 A, the additional dissipation is approximately 3.3 milliwatts, which is typically negligible in circuit design.

Q: Why does the substitute part have shielding when the original is unshielded?

A: The SPD62R-103M incorporates shielding as a design feature of the Drum Core, Wirewound construction. Shielding reduces electromagnetic interference emissions and susceptibility, providing enhanced performance in noise-sensitive applications. This represents a functional improvement over the original unshielded design.

Q: Are there any temperature range limitations when substituting?

A: No. The SPD62R-103M operating range of -55°C to 125°C encompasses and exceeds the original -40°C to 100°C specification. The substitute is suitable for applications across the full original temperature range and beyond.

Q: What is the difference between the inductance test frequencies?

A: The CDRH62NP-100MC specifies inductance measurement at 2.52 MHz, while the SPD62R-103M uses 100 kHz. Both measurements confirm the 10 µH inductance value within ±20% tolerance. The different test frequencies reflect manufacturer measurement standards and do not affect substitution compatibility.

Q: Is the packaging format (Tape & Reel) compatible with existing assembly processes?

A: Yes. Tape & Reel packaging is standard for surface mount component assembly and is compatible with automated pick-and-place equipment used in modern PCB manufacturing.

Q: Are both components RoHS compliant?

A: Yes. Both the CDRH62NP-100MC and SPD62R-103M are ROHS3 compliant, meeting environmental and hazardous substance restrictions for electronic components.