KYOCERA AVX 1825AC103MAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1825AC103MAT1A is a 10000 pF high-voltage ceramic capacitor manufactured by KYOCERA AVX with an X7R temperature coefficient and 1000V rated voltage. This surface-mount multilayer ceramic capacitor (MLCC) in 1825 package is designed for general-purpose applications requiring stable capacitance across a wide operating temperature range of -55°C to 125°C. The part is active in production status and ROHS3 compliant. Substitute parts are identified when equivalent capacitance and package specifications are maintained while voltage ratings or tolerance parameters differ within acceptable engineering parameters.

Substiute Parts

1825AC103MAT1A\SB

KYOCERA AVXIn Stock: 10721825AC103MAT1A\SB Datasheet

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1825GC103KAT1A

KYOCERA AVXIn Stock: 24491825GC103KAT1A Datasheet

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1825HC103KAT1A

KYOCERA AVXIn Stock: 252491825HC103KAT1A Datasheet

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1825SC103KAT1A

KYOCERA AVXIn Stock: 14361825SC103KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1825AC103MAT1A maintain the core electrical and mechanical specifications: 10000 pF capacitance value, X7R temperature coefficient, identical 1825 package footprint, and surface-mount configuration. Substitution is determined by the following allowed parameters:

• Capacitance: Must remain 10000 pF (no variation)
• Package / Case: Must remain 1825 (4564 Metric) for mechanical compatibility
• Temperature Coefficient: Must remain X7R for thermal stability
• Mounting Type: Must remain Surface Mount, MLCC
• Voltage Rating: May increase from 1000V to higher ratings (1500V, 2000V, 3000V)
• Tolerance: May improve from ±20% to ±10%
• Compliance: All parts must maintain ROHS3 compliance and MSL 1 rating

The substitute parts listed represent voltage-upgraded variants of the same capacitor family, allowing for higher voltage circuit applications while preserving all other electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active production status and ROHS3 compliance, ensuring long-term availability and regulatory conformance. Selection between the main part and substitutes depends on circuit voltage requirements:

• 1825AC103MAT1A: Select for applications with 1000V maximum operating voltage and where ±20% tolerance is acceptable.
• 1825SC103KAT1A: Select for applications requiring 1500V voltage rating with improved ±10% tolerance specification.
• 1825GC103KAT1A: Select for applications requiring 2000V voltage rating with improved ±10% tolerance specification.
• 1825HC103KAT1A: Select for applications requiring 3000V voltage rating with improved ±10% tolerance specification and highest inventory availability.

All parts share identical physical footprints, thermal characteristics, and moisture sensitivity ratings, enabling direct substitution at the PCB assembly level when voltage and tolerance requirements are met.

Frequently Asked Questions (FAQ)

Q: Can 1825AC103MAT1A be replaced with a higher voltage-rated substitute? A: Yes. Higher voltage-rated parts (1825SC103KAT1A, 1825GC103KAT1A, 1825HC103KAT1A) are direct substitutes when circuit design permits. All maintain identical capacitance, package footprint, and thermal performance.

Q: What is the difference between ±20% and ±10% tolerance? A: Tolerance specifies the allowable deviation from the nominal 10000 pF capacitance value. ±20% allows 8000-12000 pF; ±10% allows 9000-11000 pF. Applications requiring tighter capacitance control should specify ±10% parts.

Q: Are all substitute parts mechanically compatible with the original design? A: Yes. All parts use the 1825 (4564 Metric) package with identical dimensions (4.50mm x 6.40mm x 2.54mm maximum thickness), ensuring direct PCB footprint compatibility without layout modifications.

Q: Do substitute parts require different soldering or assembly procedures? A: No. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating and identical surface-mount characteristics, requiring no changes to standard assembly processes.

Q: Which substitute offers the best availability? A: The 1825HC103KAT1A (3000V rating) has the highest inventory at 25145 pieces, followed by 1825GC103KAT1A (2400 pieces) and 1825SC103KAT1A (1356 pieces).

Q: Can lower voltage-rated parts substitute for higher voltage applications? A: No. Voltage rating must meet or exceed circuit requirements. Using lower-rated parts in higher-voltage applications creates reliability and safety risks.