CS321613-330K Equivalent & Substitute Parts

Part Overview

The CS321613-330K is a 33 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 1.5Ohm maximum 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

CS321613-330K

Bourns Inc.In Stock: 884CS321613-330K Datasheet

Current PartRFQ

AIML-1206-330K-T

Abracon LLCIn Stock: 1208AIML-1206-330K-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS321613-330K is determined by the following critical parameters:

• Inductance Value: Must be 33 µH with ±10% tolerance
• Package / Case: Must be 1206 (3216 Metric) for mechanical and electrical compatibility
• Shielding: Must be shielded to maintain electromagnetic isolation
• Core Material: Must be ferrite-based
• Mounting Type: Must be surface mount
• Operating Temperature Range: Must support -55°C ~ 125°C minimum
• RoHS Compliance: Must meet ROHS3 requirements

The AIML-1206-330K-T from Abracon LLC meets all mandatory substitution criteria. While the current rating differs (5 mA versus 25 mA), this represents a derating condition acceptable for applications where the original 25 mA specification is not fully utilized. The lower DC resistance of the substitute (1.05Ohm Max versus 1.5Ohm Max) provides improved electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The AIML-1206-330K-T is a qualified substitute for the obsolete CS321613-330K based on the following factors:

• Both components maintain identical inductance values and tolerance specifications
• Both are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings
• Both support the full -55°C ~ 125°C operating temperature range
• The substitute is currently in active production status, ensuring long-term availability
• Physical dimensions are compatible with existing PCB layouts, with the substitute offering a slightly lower profile (0.055" versus 0.059" seated height)
• The lower DC resistance of the substitute provides a performance advantage in applications where power dissipation is a design consideration

The primary design consideration is the reduced current rating of the substitute (5 mA versus 25 mA). Component selection should confirm that circuit current requirements do not exceed the 5 mA specification of the AIML-1206-330K-T.

Frequently Asked Questions (FAQ)

Q: Can the AIML-1206-330K-T be used as a direct replacement for the CS321613-330K?

A: Yes, provided that the circuit current does not exceed 5 mA. The substitute meets all mechanical, electrical, and compliance requirements for the 1206 package form factor and maintains the same inductance value and tolerance.

Q: What is the impact of the different current ratings?

A: The CS321613-330K is rated for 25 mA, while the AIML-1206-330K-T is rated for 5 mA. If your application requires current handling above 5 mA, the substitute is not suitable. If circuit current remains below 5 mA, the lower rating does not affect functionality.

Q: Are there any PCB layout considerations when switching to the substitute?

A: The substitute has a slightly lower seated height (0.055" versus 0.059"), which is compatible with existing 1206 package footprints. No PCB layout modifications are required.

Q: Do both components meet the same compliance standards?

A: Yes. Both the CS321613-330K and AIML-1206-330K-T are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings and support the -55°C ~ 125°C operating temperature range.

Q: Why is the original part listed as obsolete?

A: The CS321613-330K is marked as obsolete by the manufacturer. The AIML-1206-330K-T is an active product from Abracon LLC and represents the recommended path for design continuity and future production support.