CDH63NP-680KC Equivalent & Substitute Parts

Part Overview

The CDH63NP-680KC is a 68 µH unshielded wirewound surface mount inductor manufactured by Sumida America Components Inc. This component is rated for 390 mA continuous current with a maximum DC resistance of 1.48 Ohm and operates at a saturation current of 480 mA. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

CDH63NP-680KC

Sumida America Components Inc.In Stock: 1161CDH63NP-680KC Datasheet

Current PartRFQ

B82462A4683K000

EPCOS - TDK ElectronicsIn Stock: 3380B82462A4683K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH63NP-680KC is determined by the following critical parameters:

Inductance Value: 68 µH with ±10% tolerance is the primary electrical specification. Substitute parts must maintain this inductance value within the specified tolerance band.

Current Ratings: The main part supports 390 mA continuous current with 480 mA saturation current. Substitute parts must meet or exceed these current specifications to ensure equivalent or superior performance in the application circuit.

DC Resistance: The 1.48 Ohm maximum DCR is a key thermal and efficiency parameter. Substitute parts with lower DCR values provide improved performance characteristics.

Shielding Configuration: Both the main part and substitute must be unshielded to maintain electromagnetic compatibility with the original circuit design.

Surface Mount Compatibility: All parts must be surface mount devices suitable for automated assembly processes.

Compliance Standards: RoHS3 compliance and MSL Level 1 rating ensure environmental and manufacturing process compatibility.

The B82462A4683K000 from EPCOS - TDK Electronics meets all substitution criteria with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The B82462A4683K000 is a direct functional equivalent for the obsolete CDH63NP-680KC. Both components share identical inductance values, tolerance specifications, and unshielded surface mount configurations. The substitute part demonstrates superior electrical performance with 40 mA higher continuous current rating (430 mA vs. 390 mA), 210 mA higher saturation current (690 mA vs. 480 mA), and significantly lower DC resistance (860 mOhm vs. 1.48 Ohm).

The B82462A4683K000 carries active product status from EPCOS - TDK Electronics, ensuring long-term availability and supply chain continuity. Both parts maintain ROHS3 compliance and MSL Level 1 moisture sensitivity ratings. The substitute part includes AEC-Q200 automotive qualification, providing additional reliability assurance for demanding applications.

The lower DC resistance of the substitute part results in reduced power dissipation and improved thermal performance in circuit operation. Physical dimensions are comparable (6.00mm x 6.00mm vs. 6.30mm x 6.10mm), with height differences within acceptable PCB layout tolerances.

Frequently Asked Questions (FAQ)

Q: Can the B82462A4683K000 directly replace the CDH63NP-680KC in existing designs?

A: Yes. Both inductors maintain 68 µH inductance at ±10% tolerance and operate as unshielded surface mount components. The substitute part meets or exceeds all electrical specifications of the main part, including current ratings and saturation characteristics.

Q: What is the significance of the lower DC resistance in the substitute part?

A: The B82462A4683K000 features 860 mOhm maximum DCR compared to 1.48 Ohm in the CDH63NP-680KC. Lower DCR reduces resistive losses, resulting in decreased power dissipation and improved thermal efficiency during circuit operation.

Q: Are there physical compatibility concerns between these parts?

A: Physical dimensions are comparable. The main part measures 6.30mm x 6.10mm with 2.90mm maximum seated height. The substitute measures 6.00mm x 6.00mm with 3.00mm maximum seated height. These differences are within standard PCB layout tolerances for nonstandard surface mount packages.

Q: Why is the CDH63NP-680KC classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Sumida America Components Inc. The B82462A4683K000 from EPCOS - TDK Electronics is an active product with confirmed ongoing availability.

Q: What compliance certifications apply to the substitute part?

A: The B82462A4683K000 is ROHS3 compliant, carries AEC-Q200 automotive qualification, and maintains MSL Level 1 moisture sensitivity rating. REACH status is unaffected.

Q: How do the current ratings compare between these inductors?

A: The main part supports 390 mA continuous current with 480 mA saturation. The substitute supports 430 mA continuous current with 690 mA saturation. The substitute part provides 40 mA additional continuous current capacity and 210 mA additional saturation margin.