AU103C105KA72A Equivalent & Substitute Parts

Part Overview

The AU103C105KA72A is a 1 µF ceramic capacitor rated at 25V with X7R temperature coefficient, manufactured by KYOCERA AVX in a 1210 (3225 Metric) surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity. The part features gold flash termination and unlimited moisture sensitivity rating (MSL 1), suitable for general-purpose applications across industrial and commercial electronics.

Substiute Parts

AU103C105KA72A

KYOCERA AVXIn Stock: 1057AU103C105KA72A Datasheet

Current PartRFQ

CC1210KKX7R8BB105

YAGEOIn Stock: 11302CC1210KKX7R8BB105 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AU103C105KA72A is determined by strict equivalence across the following parameters:

• Capacitance Value: 1 µF (exact match required)
• Voltage Rating: 25V (minimum acceptable rating)
• Temperature Coefficient: X7R (ensures stable capacitance across operating temperature range)
• Package Footprint: 1210 (3225 Metric) (ensures mechanical and electrical compatibility)
• Mounting Technology: Surface Mount, MLCC (maintains assembly process compatibility)
• Tolerance: ±10% (acceptable performance margin)
• Operating Temperature Range: -55°C to 125°C (functional envelope)

The substitute part CC1210KKX7R8BB105 from YAGEO meets all these criteria and is classified as active product status, providing long-term availability assurance.

Parameter Comparison

Engineering Selection Recommendations

The CC1210KKX7R8BB105 from YAGEO is the direct functional equivalent for the obsolete AU103C105KA72A. Selection of this substitute is supported by:

• Active Product Status: YAGEO maintains CC1210KKX7R8BB105 as an active product, ensuring long-term availability and supply chain stability.
• Compliance Certifications: Both parts share identical ECCN (EAR99) and HTSUS (8532.24.0020) classifications. The YAGEO substitute carries ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements.
• Electrical Equivalence: All critical electrical parameters—capacitance, voltage rating, temperature coefficient, and operating temperature range—are identical.
• Mechanical Compatibility: Identical package dimensions and footprint ensure direct PCB layout compatibility without redesign.
• Inventory Availability: YAGEO CC1210KKX7R8BB105 maintains substantial stock (11,229 pcs), supporting both immediate procurement and long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can CC1210KKX7R8BB105 be used as a direct replacement for AU103C105KA72A without PCB modification?

A: Yes. Both parts share identical 1210 (3225 Metric) package dimensions (0.126" L x 0.098" W) and surface mount termination. No PCB layout changes are required.

Q: Are there electrical performance differences between these parts?

A: No. Both parts are specified with 1 µF capacitance at ±10% tolerance, 25V voltage rating, X7R temperature coefficient, and -55°C to 125°C operating range. Electrical performance is equivalent.

Q: Why is the AU103C105KA72A marked obsolete?

A: KYOCERA AVX has discontinued this part number. The CC1210KKX7R8BB105 substitute from YAGEO provides equivalent functionality with active product status and ongoing manufacturer support.

Q: What is the difference between standard packaging and Tape & Reel (TR) packaging?

A: Tape & Reel packaging is standard for automated assembly processes and high-volume production. Both packaging formats contain identical components; the difference is in delivery format. Tape & Reel is preferred for manufacturing environments with automated pick-and-place equipment.

Q: Are compliance certifications equivalent?

A: Both parts share ECCN EAR99 and HTSUS 8532.24.0020 classifications. The YAGEO substitute includes ROHS3 compliance and REACH unaffected status, meeting current regulatory standards.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. Both parts carry this rating, meaning they can be stored and handled under standard conditions without special moisture control procedures.