CDH53NP-220KC Equivalent & Substitute Parts

Part Overview

The CDH53NP-220KC is a 22 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 800 mA continuous current with a maximum DC resistance of 390 mOhm and operates across the temperature range of -40°C to 100°C. The part is Active in product status and ROHS3 compliant, making it suitable for applications requiring fixed inductance in compact form factors. Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining functional compatibility in the target application circuit.

Substiute Parts

CDH53NP-220KC

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

Current PartRFQ

SDR6603-220M

Bourns Inc.In Stock: 2132SDR6603-220M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDH53NP-220KC is determined by the following critical parameters:

Primary Electrical Criteria:

• Inductance value of 22 µH
• Current rating of 800 mA or greater
• DC resistance within acceptable operating limits
• Ferrite core material for equivalent magnetic characteristics
• Unshielded configuration

Physical & Environmental Criteria:

• Surface mount package type
• Nonstandard case dimensions compatible with PCB layout constraints
• Operating temperature range supporting -40°C to 100°C minimum
• ROHS3 compliance for regulatory alignment
• Moisture sensitivity level 1 (unlimited)

The SDR6603-220M from Bourns Inc. qualifies as a substitute based on matching inductance, current rating, core material, shielding type, mounting method, and compliance certifications. Variations in DC resistance (370 mOhm vs. 390 mOhm maximum), inductance tolerance (±20% vs. ±10%), and physical dimensions are within acceptable engineering parameters for equivalent functional performance.

Parameter Comparison

Engineering Selection Recommendations

CDH53NP-220KC Selection Criteria:

• Applications requiring ±10% inductance tolerance specification
• Designs with strict thermal operating limits at 100°C maximum
• Circuits where the 390 mOhm DC resistance specification is critical
• PCB layouts accommodating 6.00mm x 5.20mm footprint dimensions

SDR6603-220M Selection Criteria:

• Applications tolerating ±20% inductance tolerance
• Designs benefiting from extended operating temperature range to 125°C
• Circuits where lower DC resistance (370 mOhm) provides performance advantage
• PCB layouts accommodating 6.60mm x 4.45mm footprint with lower 2.92mm profile
• Applications requiring Bourns supply chain availability (2100 pcs in stock vs. 649 pcs)

Both parts maintain Active product status, ROHS3 compliance, and equivalent electrical performance at the 800 mA current rating. Physical dimension differences require PCB layout verification prior to substitution. DC resistance differential of 20 mOhm is negligible in most applications but should be evaluated in power-sensitive circuits.

Frequently Asked Questions (FAQ)

Q: Can SDR6603-220M replace CDH53NP-220KC in all applications?

A: Substitution is valid when the application tolerates ±20% inductance tolerance (versus ±10% for CDH53NP-220KC) and PCB layout accommodates the different footprint dimensions (6.60mm x 4.45mm vs. 6.00mm x 5.20mm). The lower DC resistance of SDR6603-220M (370 mOhm) is electrically compatible and often beneficial.

Q: What are the physical dimension constraints for substitution?

A: The CDH53NP-220KC measures 6.00mm length x 5.20mm width x 3.20mm height. The SDR6603-220M measures 6.60mm length x 4.45mm width x 2.92mm height. PCB pad layouts and component clearance zones must accommodate these differences. The Bourns part has a lower profile (2.92mm vs. 3.20mm).

Q: Are there temperature range differences that affect substitution?

A: The CDH53NP-220KC operates from -40°C to 100°C. The SDR6603-220M operates from -40°C to 125°C. For applications operating above 100°C, only SDR6603-220M is suitable. For applications within -40°C to 100°C, both parts are compatible.

Q: How do inductance tolerances affect circuit performance?

A: CDH53NP-220KC specifies ±10% tolerance, while SDR6603-220M specifies ±20% tolerance. In circuits where inductance value directly affects frequency response, filtering characteristics, or impedance matching, the tighter tolerance of CDH53NP-220KC may be required. Verify circuit sensitivity to inductance variation before substituting.

Q: What is the significance of DC resistance differences?

A: CDH53NP-220KC has 390 mOhm maximum DC resistance; SDR6603-220M has 370 mOhm maximum. In power applications, lower resistance reduces I²R losses. The 20 mOhm difference represents approximately 5% lower resistance in the Bourns part. Evaluate thermal and efficiency requirements to determine if this difference is significant.

Q: Are both parts RoHS compliant?

A: Yes. Both CDH53NP-220KC and SDR6603-220M are ROHS3 compliant with moisture sensitivity level 1 (unlimited). Both are suitable for applications requiring RoHS certification.

Q: What packaging format is used for both parts?

A: Both parts are supplied in Tape & Reel (TR) packaging, standard for surface mount component automation and high-volume assembly processes.