CS321613-150K Equivalent & Substitute Parts

Part Overview

The CS321613-150K is a 15 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 1.1Ohm maximum and operates across the temperature range of -55°C to 125°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

CS321613-150K

Bourns Inc.In Stock: 1027CS321613-150K Datasheet

Current PartRFQ

AIML-1206-150K-T

Abracon LLCIn Stock: 999AIML-1206-150K-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS321613-150K is determined by the following critical parameters:

• Inductance Value: Must be 15 µH with ±10% tolerance
• Package / Case: Must be 1206 (3216 Metric) for mechanical and electrical compatibility
• Shielding Type: Must be shielded to maintain electromagnetic isolation
• Core Material: Must be ferrite for consistent performance characteristics
• Operating Temperature Range: Must support -55°C ~ 125°C minimum
• RoHS Compliance: Must meet ROHS3 requirements for regulatory alignment

The AIML-1206-150K-T from Abracon LLC meets all critical 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 exceeds actual circuit requirements. The lower DC resistance of the substitute (800mOhm versus 1.1Ohm) provides improved performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The AIML-1206-150K-T is a direct functional substitute for the obsolete CS321613-150K. Both components share identical inductance values, package dimensions, and operating temperature specifications. The substitute maintains ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility.

The primary consideration is current rating derating. The substitute is rated for 5 mA maximum current compared to the original 25 mA specification. This substitution is appropriate for applications where actual circuit current remains below 5 mA. For circuits requiring the full 25 mA current capacity, alternative components with higher current ratings must be evaluated.

The substitute offers improved DC resistance characteristics (800mOhm versus 1.1Ohm maximum), resulting in lower power dissipation and improved efficiency. The higher self-resonant frequency (23MHz versus 19MHz) provides extended usable frequency range.

Frequently Asked Questions (FAQ)

Q: Can the AIML-1206-150K-T replace the CS321613-150K in all applications?

A: Substitution is valid only when circuit current requirements do not exceed 5 mA. Applications requiring the full 25 mA current rating of the original component require alternative components.

Q: Are the physical dimensions compatible for PCB layout?

A: Yes. Both components use the 1206 (3216 Metric) package with identical length and width (0.126" x 0.063" / 3.20mm x 1.60mm). The substitute has a slightly lower seated height (0.055" versus 0.059"), which presents no compatibility issues for standard PCB assembly.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent regulatory and environmental performance.

Q: What is the significance of the different Q factors?

A: The original part has a Q of 45 @ 1MHz while the substitute has 40 @ 1MHz. This 5-point difference represents minimal performance variation for most applications and does not affect substitution eligibility.

Q: Why is the substitute part active while the original is obsolete?

A: The CS321613-150K has been discontinued by Bourns Inc., making the AIML-1206-150K-T from Abracon LLC the recommended active alternative for ongoing procurement and new designs.