CS321613-8R2K Equivalent & Substitute Parts

Part Overview

The CS321613-8R2K is an 8.2 µH shielded multilayer inductor manufactured by Bourns Inc., designed for surface mount applications in the 1206 (3216 Metric) package. This component is rated for 25 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 classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

CS321613-8R2K

Bourns Inc.In Stock: 1015CS321613-8R2K Datasheet

Current PartRFQ

AIML-1206-8R2K-T

Abracon LLCIn Stock: 12365AIML-1206-8R2K-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS321613-8R2K is determined by strict equivalence across the following critical parameters:

• Inductance value: 8.2 µH with ±10% tolerance
• Current rating: 25 mA minimum
• Package / Case: 1206 (3216 Metric) surface mount
• Core type: Ferrite shielded multilayer construction
• Operating temperature range: -55°C to 125°C minimum
• RoHS3 compliance requirement

The AIML-1206-8R2K-T from Abracon LLC meets all substitution criteria. While the DC resistance specification differs (800mOhm Max versus 600mOhm Max), this represents a relaxation of the original specification and remains within acceptable tolerance for equivalent functionality in the specified inductance and current rating category.

Parameter Comparison

Engineering Selection Recommendations

The AIML-1206-8R2K-T is a direct functional equivalent for the obsolete CS321613-8R2K. Both components maintain identical inductance values, current ratings, package dimensions, and operating temperature specifications. The substitute part carries active product status with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring long-term availability and regulatory compliance.

The primary specification difference is DC resistance, where the Abracon part specifies 800mOhm maximum compared to the Bourns original at 600mOhm maximum. This difference must be evaluated within the context of the specific circuit application. Applications sensitive to inductor losses or thermal dissipation should conduct circuit analysis to confirm the higher DCR remains acceptable. The substitute part demonstrates superior self-resonant frequency (31MHz versus 26MHz), which may provide additional margin in high-frequency applications.

Frequently Asked Questions (FAQ)

Q: Can the AIML-1206-8R2K-T be used as a direct replacement for the CS321613-8R2K?

A: Yes, the AIML-1206-8R2K-T is a direct substitute. Both parts share identical inductance (8.2 µH), current rating (25 mA), package (1206), core material (ferrite shielded), and operating temperature range (-55°C to 125°C). The higher DC resistance specification of the substitute part must be evaluated for circuit compatibility.

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

A: The CS321613-8R2K specifies 600mOhm maximum DCR, while the AIML-1206-8R2K-T specifies 800mOhm maximum. This 200mOhm difference affects inductor losses and heat dissipation. Circuits operating at or near the 25 mA current limit should confirm that the increased resistance does not exceed thermal or performance requirements.

Q: Are both parts available in the same package configuration?

A: Yes. Both components are manufactured in the 1206 (3216 Metric) surface mount package with identical footprint dimensions (0.126" L x 0.063" W / 3.20mm x 1.60mm). The substitute part has a slightly lower seated height (1.40mm versus 1.50mm), which is compatible with standard PCB assembly processes.

Q: What compliance certifications apply to the substitute part?

A: The AIML-1206-8R2K-T is ROHS3 compliant and REACH unaffected, matching the regulatory status of the original part. Both components carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: How do the Q factor and self-resonant frequency compare?

A: The original part exhibits Q of 65 @ 4MHz with self-resonant frequency of 26MHz. The substitute part provides Q of 55 @ 4MHz with self-resonant frequency of 31MHz. The lower Q indicates slightly higher losses, while the higher self-resonant frequency provides improved performance margin in high-frequency applications.