CDH63NP-221KC Equivalent & Substitute Parts

Part Overview

The CDH63NP-221KC is a 220 µH unshielded wirewound surface mount inductor manufactured by Sumida America Components Inc. This component is rated for 190 mA continuous current with a maximum DC resistance of 4.33 Ohm and operates at an inductance test frequency of 100 kHz. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. Equivalent parts must maintain the same inductance value, tolerance, and mounting characteristics while accommodating variations in current rating and DC resistance within acceptable engineering limits.

Substiute Parts

CDH63NP-221KC

Sumida America Components Inc.In Stock: 835CDH63NP-221KC Datasheet

Current PartRFQ

B82462A4224K000

EPCOS - TDK ElectronicsIn Stock: 7990B82462A4224K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH63NP-221KC is determined by strict equivalence in the following critical parameters:

Primary Equivalence Criteria:

• Inductance value: 220 µH (fixed requirement)
• Inductance tolerance: ±10% (fixed requirement)
• Mounting type: Surface Mount (fixed requirement)
• Shielding configuration: Unshielded (fixed requirement)
• Inductance test frequency: 100 kHz (fixed requirement)

Secondary Compatibility Parameters (allowable variation):

• Current rating: Substitute must equal or exceed 190 mA
• Saturation current: Substitute must equal or exceed 270 mA
• DC resistance: Substitute should be equal to or lower than 4.33 Ohm to minimize power dissipation
• Package dimensions: Minor variations acceptable if mounting footprint is compatible
• Environmental compliance: RoHS3 compliance required; MSL Level 1 required

The B82462A4224K000 qualifies as a direct substitute based on matching inductance, tolerance, mounting type, shielding, and test frequency. The substitute demonstrates improved electrical performance with higher current ratings and lower DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The B82462A4224K000 is a qualified substitute for the obsolete CDH63NP-221KC based on the following engineering criteria:

Functional Equivalence: Both components provide identical inductance (220 µH) at the specified test frequency (100 kHz) with matching tolerance (±10%). The unshielded wirewound construction and surface mount configuration are identical, ensuring circuit-level compatibility.

Performance Enhancement: The substitute demonstrates superior electrical performance with a 26% increase in current rating (240 mA vs. 190 mA) and a 48% reduction in DC resistance (2.72 Ohm vs. 4.33 Ohm). This results in lower power dissipation and improved thermal performance in the application.

Compliance and Reliability: Both components meet ROHS3 compliance and MSL Level 1 requirements. The substitute carries AEC-Q200 automotive qualification, indicating enhanced reliability testing and process control. The substitute is manufactured by EPCOS - TDK Electronics, a major active supplier with established production continuity.

Physical Compatibility: Package dimensions are compatible. The substitute footprint (6.00mm x 6.00mm) is slightly smaller than the original (6.30mm x 6.10mm), and the height difference (3.00mm vs. 2.90mm) is negligible for surface mount applications. No PCB redesign is required.

Supply Continuity: The substitute is in active production with substantial inventory availability (7926 pieces), ensuring long-term supply security compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the B82462A4224K000 be used as a direct replacement for the CDH63NP-221KC without circuit modification?

A: Yes. The substitute maintains identical inductance value, tolerance, and test frequency. The improved current rating and reduced DC resistance provide enhanced performance without requiring circuit redesign. Physical footprint compatibility eliminates PCB modifications.

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

A: The B82462A4224K000 has a maximum DC resistance of 2.72 Ohm compared to 4.33 Ohm in the original. This 48% reduction decreases resistive power loss (I²R losses) in the inductor, resulting in lower operating temperature and improved efficiency. This is a beneficial characteristic for direct substitution.

Q: Are there any thermal or frequency response differences between these parts?

A: Both components are tested at 100 kHz. The substitute includes an operating temperature specification (-55°C ~ 150°C) not provided for the original part. The drum core construction in the substitute may provide slightly different frequency response characteristics, but both are unshielded wirewound inductors with equivalent inductance at the test frequency.

Q: Does the substitute's AEC-Q200 rating affect its use in non-automotive applications?

A: No. AEC-Q200 qualification indicates enhanced reliability testing and process control. This certification is beneficial in any application and does not restrict use to automotive circuits. The part remains fully compatible with consumer, industrial, and other applications.

Q: What is the impact of the slightly different package dimensions?

A: The substitute (6.00mm x 6.00mm) is marginally smaller than the original (6.30mm x 6.10mm). This size reduction is advantageous for PCB layout and does not create compatibility issues. The height difference (3.00mm vs. 2.90mm) is negligible for surface mount assembly.

Q: Is the Tape & Reel packaging of the substitute compatible with automated assembly?

A: Yes. Tape & Reel (TR) packaging is the standard format for automated surface mount assembly. This packaging format is preferred for production environments and ensures consistent component feeding and placement.

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

A: Both are wirewound inductors. The drum core design in the substitute uses a ferrite core structure optimized for compact size and improved performance characteristics. Both constructions are unshielded and provide equivalent inductance at the specified test frequency.