CD105-221KC Equivalent & Substitute Parts Reference

Part Overview

The CD105-221KC is a 220 µH unshielded ferrite core inductor manufactured by Sumida America Components Inc., rated for 660 mA continuous current with a maximum DC resistance of 730 mOhm. This component is classified as obsolete product status. Substitute parts are necessary to maintain design continuity and ensure long-term supply chain reliability for applications requiring equivalent electrical and mechanical performance.

Substiute Parts

CD105-221KC

Sumida America Components Inc.In Stock: 941CD105-221KC Datasheet

Current PartRFQ

CD105NP-221KC

Sumida America Components Inc.In Stock: 1205CD105NP-221KC Datasheet

DirectRFQ

PG0015.224NLT

Pulse ElectronicsIn Stock: 1091PG0015.224NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD105-221KC are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 220 µH (tolerance range ±10% to ±20% acceptable)
• Current rating: 660 mA minimum
• DC resistance: 730 mOhm maximum
• Mounting type: Surface Mount
• Package dimensions: Nonstandard form factor (10.00 × 9.00 mm footprint, ≤5.80 mm height)
• Shielding configuration: Unshielded
• Operating temperature: -40°C minimum to 100°C minimum

Substitution Groups:

Group 1 – Direct Manufacturer Equivalent (Active Status) CD105NP-221KC from Sumida America Components Inc. maintains identical electrical specifications and core material (ferrite) with upgraded product status from obsolete to active. Packaging differs (Tape & Reel vs. standard), and RoHS3 compliance is achieved.

Group 2 – Cross-Manufacturer Alternative (Active Status) PG0015.224NLT from Pulse Electronics provides equivalent electrical performance with wirewound construction type. Operating temperature extends to 125°C. Inductance tolerance widens to ±20%. Self-resonant frequency differs at 4 MHz. Physical dimensions show minor variation within acceptable tolerance.

Parameter Comparison

Engineering Selection Recommendations

CD105NP-221KC (Recommended Primary Substitute)

This part is the preferred direct substitute. It is manufactured by the same supplier (Sumida America Components Inc.) and maintains identical electrical specifications and ferrite core construction. The transition from obsolete to active product status ensures continued availability and manufacturing support. ROHS3 compliance satisfies modern regulatory requirements. Tape & Reel packaging accommodates automated assembly processes. No electrical performance degradation occurs relative to the main part.

PG0015.224NLT (Alternative Substitute)

This cross-manufacturer option from Pulse Electronics provides functional equivalence with wirewound construction. It maintains the 220 µH inductance, 660 mA current rating, and 730 mOhm maximum DC resistance. The extended operating temperature range to 125°C offers thermal margin for demanding applications. ROHS3 compliance is achieved. The inductance tolerance widens to ±20%, and self-resonant frequency reduces to 4 MHz. Physical dimensions show minor variation (10.15 × 9.15 × 5.55 mm) within acceptable tolerance for nonstandard form factors. This substitute is suitable when ferrite core construction is not a design requirement and wirewound performance is acceptable.

Frequently Asked Questions (FAQ)

Q: Can CD105NP-221KC directly replace CD105-221KC without circuit modification?

A: Yes. CD105NP-221KC maintains identical inductance (220 µH ±10%), current rating (660 mA), DC resistance (730 mOhm max), core material (ferrite), and operating temperature range (-40°C to 100°C). Electrical performance is equivalent. The part is pin-compatible and footprint-compatible for surface mount assembly.

Q: What is the difference between CD105NP-221KC and CD105-221KC?

A: The primary differences are product status (active vs. obsolete), packaging format (Tape & Reel vs. standard), and RoHS compliance (ROHS3 vs. non-compliant). Electrical and mechanical specifications are identical.

Q: Can PG0015.224NLT be used as a substitute?

A: PG0015.224NLT is functionally equivalent for applications where wirewound construction is acceptable. It meets the inductance (220 µH), current rating (660 mA), and DC resistance (730 mOhm) requirements. The inductance tolerance is wider (±20% vs. ±10%), and self-resonant frequency is lower (4 MHz vs. 5.25 MHz). Physical dimensions vary slightly (10.15 × 9.15 × 5.55 mm). Verify circuit performance if frequency response or tolerance specifications are critical.

Q: What does "Tape & Reel" packaging mean?

A: Tape & Reel (TR) packaging is a standard format for automated surface mount assembly. Components are wound on continuous carrier tape and supplied on reels. This format is preferred for high-volume production and automated pick-and-place equipment. Standard packaging typically refers to bulk or tube formats suitable for manual assembly or lower-volume applications.

Q: Are there RoHS compliance differences between the substitutes?

A: CD105-221KC is RoHS non-compliant. Both CD105NP-221KC and PG0015.224NLT are ROHS3 compliant. If RoHS compliance is required for your application or market, use CD105NP-221KC or PG0015.224NLT.

Q: What is the significance of the self-resonant frequency difference?

A: CD105-221KC and CD105NP-221KC both have a self-resonant frequency of 5.25 MHz. PG0015.224NLT has a self-resonant frequency of 4 MHz. Self-resonant frequency defines the frequency at which the inductor transitions from inductive to capacitive behavior. Applications operating near or above these frequencies may experience performance variation. Verify circuit operating frequency against these specifications.

Q: Can I use PG0015.224NLT in a design originally specified for CD105-221KC?

A: PG0015.224NLT is electrically equivalent for DC and low-frequency AC applications. However, verify the following before substitution: (1) inductance tolerance of ±20% is acceptable for your circuit; (2) self-resonant frequency of 4 MHz does not conflict with circuit operating frequency; (3) wirewound construction performance is equivalent to ferrite core performance in your specific application; (4) physical dimensions (10.15 × 9.15 × 5.55 mm) fit your PCB layout.

Q: What inventory status should I consider?

A: CD105-221KC has 900 pieces in stock (obsolete status). CD105NP-221KC has 1125 pieces in stock (active status). PG0015.224NLT has 984 pieces in stock (active status). For long-term supply chain planning, prioritize active status parts (CD105NP-221KC or PG0015.224NLT) to avoid future obsolescence issues.