05085C102MAT2A Equivalent & Substitute Parts

Part Overview

The 05085C102MAT2A is a 1000 pF ceramic capacitor manufactured by KYOCERA AVX, rated for 50V with X7R temperature coefficient and ±20% tolerance. This surface mount multilayer ceramic capacitor (MLCC) is designed for bypass and decoupling applications in electronic circuits. The part features low ESL (reverse geometry) construction and is packaged in 0508 (1220 Metric) form factor. Currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), this component is widely available with 1161 pieces in stock. Substitute parts are identified to provide alternatives with improved tolerance specifications or enhanced availability while maintaining core electrical and mechanical compatibility.

Substiute Parts

05085C102MAT2A

KYOCERA AVXIn Stock: 117805085C102MAT2A Datasheet

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05085C102KAT2A

KYOCERA AVXIn Stock: 1633105085C102KAT2A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 05085C102MAT2A is determined by strict equivalence in the following critical parameters:

• Capacitance Value: Must be 1000 pF (no deviation)
• Voltage Rating: Must be 50V or higher
• Temperature Coefficient: Must be X7R
• Package / Case: Must be 0508 (1220 Metric)
• Mounting Type: Must be Surface Mount, MLCC
• Physical Dimensions: Must match 0.050" L × 0.079" W (1.27mm × 2.00mm)
• Operating Temperature Range: Must support -55°C to 125°C

The substitute part 05085C102KAT2A meets all these criteria. The primary difference is an improved tolerance specification (±10% versus ±20%), which represents a tighter capacitance tolerance band. This upgrade does not affect electrical performance in bypass and decoupling applications where the original ±20% tolerance is acceptable, but provides enhanced precision for applications requiring tighter component specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 05085C102MAT2A and 05085C102KAT2A are active production components from KYOCERA AVX with full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Both parts are suitable for direct substitution in bypass and decoupling applications where the electrical and mechanical specifications align.

Selection between these parts should be based on:

• Tolerance Requirements: If circuit design requires tighter capacitance tolerance, the 05085C102KAT2A (±10%) provides improved precision over the 05085C102MAT2A (±20%).
• Availability: The 05085C102KAT2A offers significantly higher inventory availability (16319 pieces versus 1161 pieces), making it preferable for high-volume production or rapid procurement scenarios.
• Application Criticality: For applications where capacitance precision directly impacts circuit performance, the ±10% tolerance of the substitute part provides measurable advantage.

Both parts maintain identical electrical performance in standard bypass and decoupling applications, identical physical footprint for PCB layout, and identical compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can 05085C102KAT2A be used as a direct replacement for 05085C102MAT2A?

A: Yes. Both parts share identical capacitance (1000 pF), voltage rating (50V), temperature coefficient (X7R), package (0508), and physical dimensions. The substitute part features improved tolerance (±10% versus ±20%), which is a functional upgrade for applications requiring tighter specifications.

Q: What is the difference between ±20% and ±10% tolerance?

A: Tolerance defines the acceptable deviation range from the nominal capacitance value. The 05085C102MAT2A allows capacitance between 800 pF and 1200 pF. The 05085C102KAT2A allows capacitance between 900 pF and 1100 pF. For bypass and decoupling applications, both tolerances are typically acceptable. Tighter tolerance becomes critical in precision filter circuits or timing applications.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 0508 (1220 Metric) package with dimensions of 0.050" L × 0.079" W (1.27mm × 2.00mm) and maximum thickness of 0.040" (1.02mm). PCB footprints are identical.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. For standard bypass and decoupling applications, either part is suitable. The 05085C102KAT2A is preferable for applications requiring tighter tolerance specifications or where higher inventory availability is advantageous for supply chain continuity.

Q: Are both parts RoHS compliant?

A: Yes. Both the 05085C102MAT2A and 05085C102KAT2A are ROHS3 compliant and suitable for applications requiring RoHS certification.