CWR09FK105KB Equivalent & Substitute Parts

Part Overview

The CWR09FK105KB is an active tantalum capacitor manufactured by KYOCERA AVX, currently in production with 994 units available in bulk packaging. This component is essential for applications requiring reliable energy storage in compact surface-mount form factors. Identification of qualified substitute parts is necessary to ensure supply chain continuity, support design flexibility across manufacturing batches, and maintain equivalent performance across multiple sourcing options.

Substiute Parts

CWR09FK105KB

KYOCERA AVXIn Stock: 1082CWR09FK105KB Datasheet

Current PartRFQ

CWR09FC105KB

KEMETIn Stock: 1367CWR09FC105KB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CWR09FK105KB qualifies for direct substitution with CWR09FC105KB based on the following equivalent parameters:

• Series Compatibility: Both parts belong to the CWR09 military-grade tantalum capacitor series
• Capacitance Value: 1 µF (matching specification)
• Voltage Rating: 10 V (equivalent electrical stress limit)
• Tolerance: ±10% (identical tolerance class)
• Package Standard: 1005 (2512 Metric) surface-mount form factor
• Mounting Type: Surface Mount (identical mounting requirement)
• RoHS Compliance Status: Both RoHS non-compliant (matching regulatory classification)
• Moisture Sensitivity Level: MSL 1 (Unlimited) on both parts (equivalent handling requirements)
• ECCN and HTSUS Classifications: Identical codes (EAR99 and 8532.21.0050)

The CWR09FC105KB from KEMET maintains electrical and mechanical compatibility with the original KYOCERA AVX component, enabling direct board-level substitution.

Parameter Comparison

Engineering Selection Recommendations

Both components share active product status and identical RoHS non-compliance classification. The CWR09FC105KB substitute from KEMET operates within the same regulatory framework (ECCN EAR99, HTSUS 8532.21.0050) and maintains equivalent moisture sensitivity handling requirements. Selection between these parts should be based on supply availability, procurement lead times, and established vendor relationships, as the electrical and mechanical specifications are functionally equivalent for board-level deployment.

Frequently Asked Questions (FAQ)

Q: Can CWR09FC105KB replace CWR09FK105KB in production assemblies? A: Yes. Both components share identical capacitance (1 µF), voltage rating (10 V), tolerance (±10%), and package form factor (1005/2512 Metric). Surface-mount assembly processes and PCB footprints are directly compatible.

Q: What are the key parameters that define substitution eligibility? A: Substitution is valid when the following parameters match: capacitance value, voltage rating, tolerance class, package/case standard, mounting type, moisture sensitivity level, and regulatory classification (RoHS status, ECCN, HTSUS codes).

Q: Are there any handling or storage differences between these parts? A: No. Both components carry identical Moisture Sensitivity Level 1 (Unlimited) classification, requiring no special humidity control during storage or handling.

Q: What is the significance of the CWR09 series designation? A: The CWR09 prefix indicates both components belong to the same military-grade tantalum capacitor series, ensuring design consistency and performance reliability across manufacturer options.

Q: Can I mix CWR09FK105KB and CWR09FC105KB units in the same production batch? A: Yes. Equivalent electrical performance, identical physical dimensions, and matching regulatory compliance allow both components to be used interchangeably within the same assembly run without design or manufacturing modifications.

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