CS321613-6R8K Equivalent & Substitute Parts

Part Overview

The CS321613-6R8K is a 6.8 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 maximum DC resistance of 600mOhm 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

CS321613-6R8K

Bourns Inc.In Stock: 789CS321613-6R8K Datasheet

Current PartRFQ

AIML-1206-6R8K-T

Abracon LLCIn Stock: 21197AIML-1206-6R8K-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CS321613-6R8K is determined by strict equivalence across the following critical parameters:

• Inductance Value: 6.8 µH (exact match required)
• Inductance Tolerance: ±10% (matching tolerance band)
• Current Rating: 25 mA minimum (equal or higher acceptable)
• Package / Case: 1206 (3216 Metric) (physical and electrical compatibility)
• Mounting Type: Surface Mount (assembly process compatibility)
• Core Material: Ferrite (electromagnetic performance consistency)
• Shielding: Shielded (EMI containment requirement)
• Operating Temperature Range: -55°C ~ 125°C (thermal compatibility)

The AIML-1206-6R8K-T from Abracon LLC meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The AIML-1206-6R8K-T is a direct substitute for the obsolete CS321613-6R8K. Both components share identical inductance values, tolerance specifications, current ratings, package dimensions, and operating temperature ranges. Both are ROHS3 compliant with MSL 1 ratings, ensuring equivalent environmental and regulatory compliance.

The AIML-1206-6R8K-T carries active product status with substantial inventory availability (21,187 pcs), providing supply chain continuity. The substitute exhibits a maximum DC resistance of 750mOhm compared to the original 600mOhm specification. This 150mOhm difference represents a 25% increase in DC resistance. The substitute also demonstrates a lower Q factor (55 @ 4MHz versus 65 @ 4MHz) and a higher self-resonant frequency (34MHz versus 29MHz).

Selection of the AIML-1206-6R8K-T is appropriate for applications where the increased DC resistance and modified Q characteristics remain within circuit design tolerances. Circuit-level validation is required to confirm performance equivalence in specific applications.

Frequently Asked Questions (FAQ)

Q: Can the AIML-1206-6R8K-T be used as a direct replacement for the CS321613-6R8K?

A: The AIML-1206-6R8K-T meets all critical substitution parameters: identical inductance (6.8 µH), tolerance (±10%), current rating (25 mA), package (1206), and operating temperature range (-55°C ~ 125°C). However, the increased DC resistance (750mOhm vs. 600mOhm) and lower Q factor must be evaluated within your specific circuit application.

Q: What are the physical compatibility considerations?

A: Both components use the 1206 (3216 Metric) package with identical length and width (3.20mm x 1.60mm). The substitute has a slightly lower seated height (1.40mm vs. 1.50mm), which presents no compatibility issues for standard PCB assembly processes.

Q: Are there compliance differences between these parts?

A: Both components are ROHS3 compliant with MSL 1 (Unlimited) ratings. Regulatory and environmental compliance is equivalent.

Q: What is the primary difference between these inductors?

A: The primary difference is DC resistance: the substitute exhibits 750mOhm maximum versus the original 600mOhm maximum. This affects power dissipation characteristics and should be evaluated in applications sensitive to inductor losses.

Q: Is the substitute available in the same packaging format?

A: The substitute is supplied in Tape & Reel (TR) format, while the original packaging format is not specified in the provided data. Confirm packaging requirements with your procurement process.