Equivalent & Substitute Parts for 1812CC103MAT1A

Part Overview

The 1812CC103MAT1A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 10000 pF, rated at 630V, and featuring X7R temperature coefficient characteristics. This component is classified as Active and is suitable for general-purpose applications requiring stable capacitance across a wide operating temperature range of -55°C to 125°C. The part is packaged in 1812 (4532 Metric) surface-mount form factor with ROHS3 compliance and MSL 1 rating.

Substitute parts are identified when equivalent capacitance values, temperature coefficients, and package dimensions are maintained while allowing for variations in voltage rating, tolerance, and manufacturer specifications.

Substiute Parts

1812CC103MAT1A\SB

KYOCERA AVXIn Stock: 9411812CC103MAT1A\SB Datasheet

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1812AC103KAT1A

KYOCERA AVXIn Stock: 26421812AC103KAT1A Datasheet

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KGM43FR73A103MV

KYOCERA AVXIn Stock: 2821KGM43FR73A103MV Datasheet

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C4532X7R3A103K200KA

TDK CorporationIn Stock: 86903C4532X7R3A103K200KA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812CC103MAT1A is determined by the following criteria:

Core Matching Parameters (Non-Negotiable):

• Capacitance: 10000 pF
• Temperature Coefficient: X7R
• Package / Case: 1812 (4532 Metric)
• Mounting Type: Surface Mount, MLCC
• Operating Temperature Range: -55°C to 125°C

Allowable Variations:

• Voltage Rating: Equal to or greater than 630V
• Tolerance: ±10% or ±20%
• Manufacturer: Different manufacturers permitted
• Thickness: Minor variations within mechanical constraints

All identified substitute parts maintain the core matching parameters while offering equal or higher voltage ratings and comparable tolerance specifications. Substitute parts are classified as upgrades when voltage rating exceeds the original 630V specification.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory conformance. The three identified substitutes offer voltage ratings of 1000V (1kV), providing increased design margin compared to the original 630V specification.

1812AC103KAT1A (KYOCERA AVX): Maintains manufacturer consistency with the original part while upgrading voltage rating to 1000V and improving tolerance to ±10%. Thickness increases to 2.20mm.

KGM43FR73A103MV (KYOCERA AVX): Offers 1000V voltage rating with KGM series designation. Maintains ±20% tolerance matching the original part. Thickness is 2.21mm.

C4532X7R3A103K200KA (TDK Corporation): Provides 1000V voltage rating with ±10% tolerance. Represents an alternative manufacturer source with higher inventory availability (86839 pcs). Length dimension is 4.50mm compared to 4.60mm in the original part.

All substitute parts are suitable for direct replacement in applications where the original 630V rating is adequate, with the understanding that higher voltage ratings provide additional safety margin.

Frequently Asked Questions (FAQ)

Q: Can 1812AC103KAT1A be used as a direct replacement for 1812CC103MAT1A?

A: Yes. Both parts share identical capacitance (10000 pF), temperature coefficient (X7R), package (1812/4532 Metric), and operating temperature range (-55°C to 125°C). The substitute features a higher voltage rating (1000V vs. 630V) and improved tolerance (±10% vs. ±20%), making it functionally compatible for applications designed for the original part.

Q: What is the significance of the voltage rating upgrade in substitute parts?

A: All three substitute parts are rated at 1000V (1kV) compared to the original 630V rating. This higher voltage specification provides increased design margin and allows the component to operate safely in applications with higher voltage stress. The upgrade does not affect capacitance, temperature stability, or thermal performance.

Q: Are there dimensional compatibility concerns with substitute parts?

A: The KYOCERA AVX substitutes (1812AC103KAT1A and KGM43FR73A103MV) maintain identical length and width dimensions (4.60mm x 3.20mm) as the original part. Thickness increases from 1.80mm to 2.20-2.21mm. The TDK substitute (C4532X7R3A103K200KA) has a slightly reduced length of 4.50mm with the same thickness increase. These dimensional variations are within standard 1812 (4532 Metric) package tolerances and should not affect PCB layout compatibility.

Q: Do all substitute parts maintain the same compliance certifications?

A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level), matching the original part's regulatory and environmental specifications.

Q: Which substitute part offers the best inventory availability?

A: The TDK Corporation part C4532X7R3A103K200KA has the highest inventory level at 86839 pcs, compared to 2540 pcs for 1812AC103KAT1A and 2712 pcs for KGM43FR73A103MV.