1812CC273MATME Equivalent & Substitute Parts

Part Overview

The 1812CC273MATME is a high-voltage ceramic capacitor manufactured by KYOCERA AVX, rated at 0.027 µF capacitance with 630V voltage rating and X7R temperature coefficient. This surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 metric) package is designed for general-purpose applications requiring stable performance across the -55°C to 125°C operating temperature range. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to support procurement flexibility, design optimization, and supply chain continuity.

Substiute Parts

1812CC273MATME

KYOCERA AVXIn Stock: 11231812CC273MATME Datasheet

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1812AC273KAT1A

KYOCERA AVXIn Stock: 24891812AC273KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812CC273MATME is determined by the following critical parameters:

• Capacitance Value: Must be 0.027 µF (exact match required)
• Package / Case: Must be 1812 (4532 metric) for mechanical and electrical compatibility
• Temperature Coefficient: Must be X7R to maintain stable capacitance across the operating temperature range
• Mounting Type: Must be Surface Mount, MLCC
• Voltage Rating: Substitute parts must meet or exceed 630V minimum rating
• Compliance: RoHS3 compliance and MSL 1 rating required for manufacturing and environmental standards

The identified substitute 1812AC273KAT1A meets all mechanical compatibility requirements and exceeds the voltage specification, providing enhanced performance margin in high-voltage applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812CC273MATME and 1812AC273KAT1A are Active products with full RoHS3 compliance and MSL 1 rating, ensuring compliance with current manufacturing and environmental standards.

The 1812AC273KAT1A substitute provides the following advantages:

• Voltage Margin: 1000V rating provides 370V additional safety margin above the 630V requirement
• Tolerance Improvement: ±10% tolerance versus ±20%, offering tighter capacitance control
• Same Footprint: Identical length and width (4.60mm × 3.20mm) ensure direct PCB layout compatibility

The primary design consideration is the increased thickness of the substitute part (2.80mm versus 1.80mm). This 1.0mm height difference must be evaluated against available PCB assembly clearance and component stacking requirements.

Frequently Asked Questions (FAQ)

Q: Can 1812AC273KAT1A be used as a direct replacement for 1812CC273MATME?

A: Yes, from an electrical and functional standpoint. Both parts share identical capacitance (0.027 µF), temperature coefficient (X7R), operating temperature range (-55°C to 125°C), and package footprint (1812 / 4532 metric). The substitute exceeds voltage requirements and improves tolerance specification. Physical clearance verification is required due to the 1.0mm thickness increase.

Q: What is the significance of the voltage rating difference?

A: The 1812AC273KAT1A is rated for 1000V compared to the main part's 630V rating. This higher voltage rating provides additional safety margin and allows operation in higher-voltage circuit environments without derating. The substitute is suitable for any application requiring 630V or less.

Q: Are there packaging differences between these parts?

A: The main part 1812CC273MATME is specified with standard packaging notation. The substitute 1812AC273KAT1A is supplied in Tape & Reel (TR) format. Both maintain identical component specifications and are suitable for automated assembly processes.

Q: How does the tolerance difference affect circuit performance?

A: The main part specifies ±20% tolerance, while the substitute offers ±10% tolerance. The tighter tolerance of the substitute part provides more predictable capacitance values and may improve circuit performance in applications sensitive to capacitance variation. Both tolerances are within acceptable ranges for general-purpose applications.

Q: Are both parts compliant with current environmental and manufacturing standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity) rating, meeting current manufacturing and environmental requirements.