CS321613-3R3K Equivalent & Substitute Parts

Part Overview

The CS321613-3R3K is a 3.3 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 700mOhm maximum and operates across the temperature range of -55°C to 125°C. The part is currently obsolete, making identification of suitable substitute components essential for ongoing production and design requirements.

Substiute Parts

CS321613-3R3K

Bourns Inc.In Stock: 755CS321613-3R3K Datasheet

Current PartRFQ

AIML-1206-3R3K-T

Abracon LLCIn Stock: 1747AIML-1206-3R3K-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS321613-3R3K is determined by strict equivalence across the following critical parameters:

• Inductance Value: Must be 3.3 µH with ±10% tolerance
• Current Rating: Must support minimum 50 mA
• Package / Case: Must be 1206 (3216 Metric) for mechanical and electrical compatibility
• Shielding: Must be shielded to maintain electromagnetic isolation
• Core Material: Ferrite construction for consistent performance characteristics
• Operating Temperature Range: Must cover -55°C to 125°C minimum
• Mounting Type: Surface mount configuration required

The AIML-1206-3R3K-T from Abracon LLC meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The AIML-1206-3R3K-T is a direct substitute for the obsolete CS321613-3R3K. Both components share identical inductance, tolerance, current rating, package dimensions, and operating temperature specifications. The substitute part offers improved DC resistance performance at 600mOhm maximum compared to the original 700mOhm maximum, representing a favorable characteristic for thermal management and efficiency.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols. The substitute part is currently in active production status with established supply availability, addressing the obsolescence of the original component.

The AIML-1206-3R3K-T is available in Tape & Reel packaging, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the AIML-1206-3R3K-T be used as a direct replacement for CS321613-3R3K?

A: Yes. Both components share identical inductance (3.3 µH), tolerance (±10%), current rating (50 mA), package (1206), shielding configuration, and operating temperature range (-55°C to 125°C). The substitute part meets all electrical and mechanical requirements for direct substitution.

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

A: The CS321613-3R3K has a maximum DC resistance of 700mOhm, while the AIML-1206-3R3K-T has a maximum of 600mOhm. The lower resistance of the substitute part provides improved performance characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both the CS321613-3R3K and AIML-1206-3R3K-T are ROHS3 compliant and carry MSL Level 1 moisture sensitivity rating.

Q: What is the physical height difference?

A: The CS321613-3R3K has a maximum seated height of 0.059" (1.50mm), while the AIML-1206-3R3K-T has a maximum seated height of 0.055" (1.40mm). Both fit within the 1206 package specification and are compatible with standard PCB layouts.

Q: Is the substitute part currently available?

A: Yes. The AIML-1206-3R3K-T is in active production status with established supply channels, unlike the obsolete CS321613-3R3K.