CDH63NP-101KC Equivalent & Substitute Parts

Part Overview

The CDH63NP-101KC is a 100 µH unshielded wirewound surface mount inductor manufactured by Sumida America Components Inc. This component is rated for 340 mA continuous current with a maximum DC resistance of 1.81 Ohm and operates at 100 kHz test frequency. The part is classified as obsolete, making identification of equivalent substitutes necessary for ongoing design support and procurement continuity. Substitute parts must maintain the same inductance value, tolerance, and mounting characteristics while meeting or exceeding the electrical performance specifications.

Substiute Parts

CDH63NP-101KC

Sumida America Components Inc.In Stock: 934CDH63NP-101KC Datasheet

Current PartRFQ

B82462A4104K000

EPCOS - TDK ElectronicsIn Stock: 4438B82462A4104K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDH63NP-101KC is determined by strict adherence to the following parameters:

Critical Matching Parameters:

• Inductance value: 100 µH
• Inductance tolerance: ±10%
• Mounting type: Surface Mount
• Shielding configuration: Unshielded

Performance Parameters (Substitute Must Meet or Exceed):

• Current rating: Minimum 340 mA
• Saturation current (Isat): Minimum 390 mA
• DC resistance: 1.81 Ohm maximum (lower values are acceptable)

Compliance Parameters:

• RoHS3 compliance required
• Moisture Sensitivity Level 1 acceptable

The B82462A4104K000 qualifies as a substitute because it maintains identical inductance (100 µH) and tolerance (±10%), operates as an unshielded surface mount component, and exceeds the current rating (350 mA vs. 340 mA required) and saturation current (570 mA vs. 390 mA required). The substitute exhibits lower DC resistance (1.28 Ohm vs. 1.81 Ohm maximum), which is advantageous for thermal performance.

Parameter Comparison

Engineering Selection Recommendations

The B82462A4104K000 is a qualified substitute for the obsolete CDH63NP-101KC based on the following engineering criteria:

Electrical Compatibility: The substitute maintains identical inductance and tolerance specifications. Current rating and saturation current both exceed the original part requirements, providing design margin. The lower DC resistance of the substitute (1.28 Ohm vs. 1.81 Ohm maximum) reduces power dissipation and improves thermal characteristics.

Regulatory and Compliance Status: Both parts are ROHS3 compliant and carry MSL Level 1 rating, ensuring equivalent environmental and handling requirements. The substitute is manufactured by EPCOS - TDK Electronics and carries AEC-Q200 qualification, indicating automotive-grade reliability standards.

Product Lifecycle: The original part is classified as obsolete, making the active status of the substitute critical for procurement continuity. The substitute is currently in production with documented inventory availability.

Physical and Functional Characteristics: Both components are unshielded surface mount inductors with identical test frequency (100 kHz). The substitute employs a ferrite drum core construction versus the unspecified core material of the original part, which is a standard industry approach for this inductance and current rating class.

Frequently Asked Questions (FAQ)

Q: Can the B82462A4104K000 be used as a direct replacement for CDH63NP-101KC in existing designs?

A: Yes. The substitute meets all critical electrical parameters: identical 100 µH inductance with ±10% tolerance, surface mount configuration, unshielded design, and exceeds current and saturation current ratings. Both parts are ROHS3 compliant with MSL Level 1 rating.

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

A: The B82462A4104K000 exhibits 1.28 Ohm maximum DC resistance compared to 1.81 Ohm maximum in the original part. Lower DC resistance reduces I²R power dissipation, resulting in lower operating temperature and improved efficiency. This is a performance improvement for the application.

Q: Are there any dimensional differences between these parts?

A: The parts have similar but slightly different dimensions. The original CDH63NP-101KC measures 0.248" L x 0.240" W x 0.114" H (6.30mm x 6.10mm x 2.90mm). The substitute B82462A4104K000 measures 0.236" L x 0.236" W x 0.118" H (6.00mm x 6.00mm x 3.00mm). Both are nonstandard packages suitable for surface mount assembly. Verify PCB layout compatibility before implementation.

Q: What is the difference between wirewound and drum core wirewound construction?

A: Both are wirewound inductors. The original part uses wirewound construction with unspecified core material. The substitute uses drum core wirewound construction with ferrite core material. Drum core design provides improved current handling and thermal performance while maintaining the same electrical specifications.

Q: Does the substitute part have better temperature performance?

A: The substitute B82462A4104K000 specifies an operating temperature range of -55°C to 150°C. The original part does not specify operating temperature limits. The substitute's documented temperature range indicates suitability for extended temperature applications.

Q: What is AEC-Q200 qualification?

A: AEC-Q200 is an automotive electronics council qualification standard for passive components. The substitute carries this certification, indicating it meets automotive-grade reliability and quality standards. This is an additional assurance of component quality beyond standard commercial specifications.

Q: Is packaging format a consideration for substitution?

A: The substitute is supplied in Tape & Reel (TR) format, which is standard for surface mount production. The original part packaging format is not specified. Tape & Reel format is compatible with automated assembly equipment and is the industry standard for surface mount components.

Q: Can these parts be used interchangeably in high-frequency applications?

A: Both parts are tested at 100 kHz. The substitute specifies a self-resonant frequency of 9 MHz. For applications operating significantly above 100 kHz, the self-resonant frequency becomes relevant. Verify that your operating frequency is below the self-resonant frequency to ensure predictable inductor behavior.