CDH53-220KC Equivalent & Substitute Parts

Part Overview

The CDH53-220KC is a 22 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 800 mA continuous current with a maximum DC resistance of 390 mOhm. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The CDH53 series provides ferrite core construction suitable for surface mount applications in compact form factors.

Substiute Parts

CDH53-220KC

Sumida America Components Inc.In Stock: 1128CDH53-220KC Datasheet

Current PartRFQ

CDH53NP-220KC

Sumida America Components Inc.In Stock: 736CDH53NP-220KC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH53-220KC is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 22 µH
• Inductance tolerance: ±10%
• Current rating: 800 mA minimum
• DC resistance: 390 mOhm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded
• Physical footprint: 6.00 mm × 5.20 mm × 3.20 mm
• Mounting technology: Surface mount

The CDH53NP-220KC qualifies as a direct substitute because it maintains identical electrical specifications and physical dimensions while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The CDH53NP-220KC is the direct equivalent for CDH53-220KC replacement. Selection rationale is based on the following factors:

Product Status: The CDH53-220KC is obsolete, creating supply chain risk. The CDH53NP-220KC maintains active product status with confirmed inventory availability (649 pcs), ensuring long-term procurement viability.

Compliance Certifications: The CDH53NP-220KC achieves ROHS3 compliance, whereas the original part is non-compliant. This upgrade aligns with current regulatory requirements for electronic component procurement in regulated industries.

Operating Temperature Range: The substitute part extends the lower operating limit from -30°C to -40°C, providing enhanced performance margin in cold environment applications.

Electrical Equivalence: All critical electrical parameters remain identical: 22 µH inductance at ±10% tolerance, 800 mA current rating, and 390 mOhm maximum DC resistance. These specifications ensure direct functional replacement without circuit redesign.

Packaging Consideration: The substitute is supplied in Tape & Reel format, which is standard for automated assembly processes, whereas the original uses bulk packaging. This packaging change is compatible with modern manufacturing workflows.

Frequently Asked Questions (FAQ)

Q: Can CDH53NP-220KC be used as a direct replacement for CDH53-220KC in existing designs?

A: Yes. The CDH53NP-220KC is electrically and mechanically identical to the CDH53-220KC across all specified parameters: 22 µH inductance, 800 mA current rating, 390 mOhm DC resistance, ferrite core construction, and identical physical dimensions (6.00 mm × 5.20 mm × 3.20 mm). No circuit modifications are required.

Q: What is the difference between the two part numbers?

A: The primary differences are product status and compliance. The CDH53-220KC is obsolete and RoHS non-compliant, while CDH53NP-220KC is active, ROHS3 compliant, and offers an extended operating temperature range (-40°C to 100°C versus -30°C to 100°C).

Q: Does the Tape & Reel packaging of CDH53NP-220KC affect compatibility?

A: No. Tape & Reel packaging is a supply format change only and does not affect electrical or mechanical performance. It is compatible with standard automated assembly equipment and is the preferred format for high-volume manufacturing.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts are specified with identical inductance (22 µH ±10%), current rating (800 mA), DC resistance (390 mOhm max), and core material (ferrite). Performance in circuit operation is equivalent.

Q: Why should I transition from CDH53-220KC to CDH53NP-220KC?

A: Transition is necessary because CDH53-220KC is obsolete. CDH53NP-220KC provides supply continuity, regulatory compliance (ROHS3), and improved temperature performance while maintaining complete electrical and mechanical equivalence.