CS321613-2R2K Equivalent & Substitute Parts

Part Overview

The CS321613-2R2K is a 2.2 µH shielded multilayer inductor manufactured by Bourns Inc., designed for surface mount applications in the 1206 (3216 Metric) package. This component is rated for 50 mA maximum current with a DC resistance of 600mOhm maximum and operates across the temperature range of -55°C to 125°C. The part is currently classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

CS321613-2R2K

Bourns Inc.In Stock: 946CS321613-2R2K Datasheet

Current PartRFQ

AIML-1206-2R2K-T

Abracon LLCIn Stock: 34939AIML-1206-2R2K-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS321613-2R2K is determined by strict equivalence across the following critical parameters:

Inductance value must match at 2.2 µH with ±10% tolerance. Current rating must support the 50 mA specification. DC resistance must not exceed the maximum allowable value for the application. Package and mounting type must remain 1206 (3216 Metric) surface mount to ensure PCB compatibility. Operating temperature range must encompass or equal -55°C to 125°C. Shielding type must be maintained as shielded to preserve electromagnetic performance characteristics. Core material must remain ferrite-based multilayer construction.

The AIML-1206-2R2K-T from Abracon LLC meets all substitution criteria within these defined parameters.

Parameter Comparison

Engineering Selection Recommendations

The AIML-1206-2R2K-T from Abracon LLC is a direct functional equivalent for the obsolete CS321613-2R2K. Both components maintain identical inductance, tolerance, current rating, and operating temperature specifications. The substitute part features a lower DC resistance of 550mOhm maximum compared to the original 600mOhm maximum, which represents an improvement in performance characteristics. Both parts are ROHS3 compliant and carry MSL rating of 1 (Unlimited), ensuring equivalent environmental and handling requirements. The substitute part is currently in active production status with substantial inventory availability, eliminating supply chain constraints associated with the obsolete original part. Physical dimensions remain compatible with existing PCB layouts, with the substitute part featuring a slightly reduced maximum seated height of 0.055" (1.40mm) versus 0.059" (1.50mm), which presents no compatibility issues for standard surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the AIML-1206-2R2K-T be used as a direct replacement for the CS321613-2R2K in existing designs?

A: Yes. Both parts share identical inductance values, current ratings, operating temperature ranges, and package specifications. The substitute part meets or exceeds all electrical and mechanical requirements of the original component.

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

A: The AIML-1206-2R2K-T exhibits a maximum DC resistance of 550mOhm compared to the original 600mOhm maximum. This lower resistance value reduces power dissipation and heat generation in the inductor, representing an improvement over the original specification.

Q: Are there any PCB layout modifications required when switching to the AIML-1206-2R2K-T?

A: No modifications are required. Both components use the identical 1206 (3216 Metric) package with matching footprint dimensions of 0.126" L x 0.063" W (3.20mm x 1.60mm). The substitute part's slightly reduced seated height of 0.055" (1.40mm) versus 0.059" (1.50mm) presents no clearance or assembly concerns.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the CS321613-2R2K and AIML-1206-2R2K-T are ROHS3 compliant and carry MSL rating 1 (Unlimited), indicating identical environmental qualification and handling requirements.

Q: Why is the original part classified as obsolete?

A: The CS321613-2R2K is no longer in active production by Bourns Inc. The AIML-1206-2R2K-T from Abracon LLC remains in active production with full inventory availability, making it the recommended solution for new designs and ongoing procurement.