CS321613-R22K Equivalent & Substitute Parts

Part Overview

The CS321613-R22K is a 220 nH shielded multilayer inductor manufactured by Bourns Inc., rated for 250 mA with a maximum DC resistance of 250mOhm. This component is packaged in a 1206 (3216 Metric) surface mount form factor and operates across the temperature range of -55°C to 125°C. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

CS321613-R22K

Bourns Inc.In Stock: 718CS321613-R22K Datasheet

Current PartRFQ

AIML-1206-R22K-T

Abracon LLCIn Stock: 1167AIML-1206-R22K-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS321613-R22K is determined by strict equivalence across the following critical parameters:

• Inductance value: 220 nH with ±10% tolerance
• Current rating: 250 mA minimum
• Package / Case: 1206 (3216 Metric) surface mount
• Shielding: Shielded construction required
• Core material: Ferrite
• Operating temperature range: -55°C ~ 125°C minimum
• RoHS compliance: ROHS3 Compliant

The AIML-1206-R22K-T from Abracon LLC meets all these core substitution criteria. While the DC resistance specification differs (350mOhm Max versus 250mOhm Max), this represents a relaxation of the original specification and does not prevent functional substitution in applications where the original 250mOhm DCR was not a critical design constraint.

Parameter Comparison

Engineering Selection Recommendations

The AIML-1206-R22K-T is a direct functional substitute for the obsolete CS321613-R22K. Both components are ROHS3 compliant and maintain identical inductance values, current ratings, package dimensions, and operating temperature specifications. The substitute part is currently in active production status with confirmed inventory availability.

The primary design consideration is the increased DC resistance specification of the AIML-1206-R22K-T (350mOhm Max versus 250mOhm Max). Applications requiring the lower DCR of the original part must evaluate whether the additional 100mOhm of resistance introduces unacceptable power dissipation or circuit performance degradation. For applications where DCR was not a critical design parameter, the Abracon substitute provides full functional equivalence with the advantage of active product status and ongoing supply availability.

Frequently Asked Questions (FAQ)

Q: Can the AIML-1206-R22K-T be used as a direct replacement for the CS321613-R22K?

A: Yes, the AIML-1206-R22K-T is a direct substitute for the obsolete CS321613-R22K across all critical electrical and mechanical parameters, including inductance, current rating, package form factor, and operating temperature range. Both components are ROHS3 compliant and feature identical 1206 (3216 Metric) surface mount packaging.

Q: What is the difference in DC resistance between these parts?

A: The CS321613-R22K specifies a maximum DC resistance of 250mOhm, while the AIML-1206-R22K-T specifies 350mOhm maximum. This 100mOhm difference must be evaluated within the context of your specific circuit application to determine if the increased resistance is acceptable.

Q: Are the physical dimensions identical?

A: Both parts use the 1206 (3216 Metric) package with identical length and width dimensions of 0.126" L x 0.063" W (3.20mm x 1.60mm). The seated height of the AIML-1206-R22K-T is 0.055" (1.40mm) compared to 0.059" (1.50mm) for the CS321613-R22K, a negligible difference for PCB assembly compatibility.

Q: Why is the original part listed as obsolete?

A: The CS321613-R22K is marked as obsolete by Bourns Inc. The AIML-1206-R22K-T from Abracon LLC is an active product with confirmed inventory availability, making it the recommended path for design continuity and production support.

Q: Do both parts meet the same compliance standards?

A: Yes, both the CS321613-R22K and AIML-1206-R22K-T are ROHS3 compliant. The AIML-1206-R22K-T additionally carries REACH Unaffected status. Both components have a Moisture Sensitivity Level (MSL) of 1 (Unlimited).