Equivalent & Substitute Parts for CWR11FK105KB

Part Overview

The CWR11FK105KB is a tantalum capacitor manufactured by KYOCERA AVX, classified as a general-purpose surface mount component. This part is currently active in production and widely used in electronic applications requiring stable capacitance in compact form factors. Identifying equivalent and substitute parts is necessary to ensure supply chain continuity, optimize procurement costs, and maintain design flexibility across manufacturing environments.

Substiute Parts

CWR11FK105KB

KYOCERA AVXIn Stock: 914CWR11FK105KB Datasheet

Current PartRFQ

T491A105K010AT

KEMETIn Stock: 22226T491A105K010AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CWR11FK105KB is determined by the following critical parameters:

Electrical Compatibility:

• Capacitance value: 1 µF
• Voltage rating: 10 V
• Tolerance: ±10%
• Type: Molded tantalum capacitor

Physical Compatibility:

• Package type: 1206 (3216 Metric)
• Mounting type: Surface Mount
• Moisture sensitivity: MSL 1 (Unlimited)

Regulatory Compliance:

• ECCN classification: EAR99
• HTSUS code: 8532.21.0050

The substitute part T491A105K010AT from KEMET meets all electrical and mechanical parameters required for direct substitution. Both parts share identical capacitance, voltage rating, tolerance, package dimensions, and regulatory classifications.

Parameter Comparison

Engineering Selection Recommendations

CWR11FK105KB (KYOCERA AVX):

• Active product status ensures continued availability
• RoHS non-compliant classification applies to legacy or non-regulated applications
• Bulk packaging suitable for high-volume manufacturing environments
• MSL 1 rating eliminates moisture-related handling constraints

T491A105K010AT (KEMET):

• Active product status with established supply chain
• ROHS3 compliant, suitable for regulated markets and modern design requirements
• Tape & Reel packaging optimized for automated assembly processes
• MSL 1 rating provides equivalent moisture handling characteristics
• Specified operating temperature range (-55°C ~ 125°C) and lifetime rating (2000 Hrs @ 125°C) provide documented thermal performance

Both parts share identical electrical specifications, package dimensions, and regulatory ECCN/HTSUS classifications. Selection between these parts depends on RoHS compliance requirements and packaging format preferences for manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Can T491A105K010AT directly replace CWR11FK105KB in existing designs?

A: Yes. Both parts are 1 µF, 10 V, ±10% tolerance molded tantalum capacitors in 1206 (3216 Metric) packages. Electrical and mechanical parameters are identical, enabling direct substitution at the component level.

Q: What is the primary difference between these two parts?

A: The main differences are manufacturer (KYOCERA AVX vs. KEMET), RoHS compliance status (non-compliant vs. ROHS3 compliant), and packaging format (Bulk vs. Tape & Reel). Electrical performance and physical dimensions are equivalent.

Q: Does the packaging format affect electrical performance?

A: No. Bulk and Tape & Reel packaging formats do not affect component electrical characteristics. The choice between formats depends on manufacturing process requirements and assembly automation capabilities.

Q: Are there moisture sensitivity concerns with either part?

A: No. Both parts carry MSL 1 (Unlimited) ratings, indicating no moisture sensitivity limitations during storage or handling.

Q: Which part should be selected for RoHS-regulated applications?

A: T491A105K010AT carries ROHS3 compliance certification and is the appropriate selection for applications subject to RoHS directives or customer requirements.

Q: Are both parts suitable for high-temperature applications?

A: T491A105K010AT specifies operating temperature range of -55°C ~ 125°C with 2000 Hrs lifetime at 125°C. CWR11FK105KB operating temperature specifications are not provided in available documentation.