CDH63NP-330MC Equivalent & Substitute Parts

Part Overview

The CDH63NP-330MC is a 33 µH unshielded wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 590 mA continuous current with a maximum DC resistance of 660 mOhm and operates at 100 kHz test frequency. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

CDH63NP-330MC

Sumida America Components Inc.In Stock: 921CDH63NP-330MC Datasheet

Current PartRFQ

B82462A4333K000

EPCOS - TDK ElectronicsIn Stock: 10924B82462A4333K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH63NP-330MC is determined by the following critical parameters:

Inductance Value: Both the main part and substitute must maintain 33 µH inductance at 100 kHz test frequency.

Current Handling: The substitute must support the required 590 mA continuous current rating. The saturation current must not fall below the operational current requirement.

DC Resistance: The substitute's DCR must be compatible with circuit power dissipation budgets. Lower DCR values improve efficiency.

Mounting and Package: Surface mount configuration is mandatory for PCB compatibility.

Environmental Compliance: RoHS3 compliance and MSL rating must be maintained for manufacturing and storage requirements.

Shielding Configuration: Unshielded topology must be preserved to maintain electromagnetic characteristics in the target application.

The B82462A4333K000 qualifies as a substitute based on matching inductance value, exceeding current rating specifications, providing superior DCR performance, maintaining surface mount compatibility, and meeting all environmental compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

The B82462A4333K000 manufactured by EPCOS - TDK Electronics is a qualified substitute for the obsolete CDH63NP-330MC. Selection is based on the following engineering criteria:

Electrical Compatibility: The substitute maintains the 33 µH inductance specification at 100 kHz test frequency. Current rating of 630 mA exceeds the original 590 mA requirement, providing operational margin. Saturation current of 1.04 A ensures the component will not saturate under specified load conditions. The DC resistance of 420 mOhm is superior to the original 660 mOhm specification, reducing power dissipation in the circuit.

Mechanical and Environmental Compatibility: Both components are surface mount, unshielded wirewound inductors with identical mounting requirements. Package dimensions are comparable (6.00mm x 6.00mm versus 6.30mm x 6.10mm), suitable for standard PCB layouts. Both components maintain RoHS3 compliance and MSL rating 1 (Unlimited) for manufacturing and storage.

Product Status and Availability: The B82462A4333K000 is active in production with 10,849 pieces in stock, ensuring long-term availability. The original CDH63NP-330MC is obsolete, making substitution necessary for continued procurement.

Compliance and Certifications: The substitute carries AEC-Q200 automotive qualification and REACH Unaffected status, providing additional reliability assurance for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the B82462A4333K000 directly replace the CDH63NP-330MC without circuit modification?

A: Yes. Both components share identical inductance value (33 µH), test frequency (100 kHz), shielding configuration (unshielded), and mounting type (surface mount). The substitute's superior current rating and lower DC resistance provide enhanced performance without requiring circuit redesign.

Q: What is the significance of the tighter inductance tolerance in the substitute?

A: The B82462A4333K000 offers ±10% tolerance compared to the original ±20%. This tighter tolerance reduces inductance variation across production batches, improving circuit consistency and performance predictability. This is a beneficial characteristic for substitution.

Q: Are there package dimension differences that affect PCB layout?

A: The substitute dimensions are 6.00mm x 6.00mm with 3.00mm maximum height, compared to the original 6.30mm x 6.10mm with 2.90mm maximum height. These differences are minimal and typically accommodated within standard PCB design margins. Verify footprint compatibility with your specific PCB layout.

Q: Does the lower DC resistance of the substitute affect circuit operation?

A: Lower DC resistance (420 mOhm versus 660 mOhm) reduces power dissipation and heat generation. This is advantageous for circuit efficiency and thermal management. No negative effects on circuit operation are introduced by this improvement.

Q: What compliance certifications should I verify for my application?

A: Both components are ROHS3 compliant with MSL rating 1. The substitute additionally carries AEC-Q200 automotive qualification and REACH Unaffected status. Verify these certifications against your specific application requirements.

Q: Is the substitute suitable for high-temperature applications?

A: The substitute specifies operating temperature range of -55°C to 150°C. The original part does not specify operating temperature. Confirm this temperature range is compatible with your application environment.