1812CC273MAT12 Equivalent & Substitute Parts

Part Overview

The 1812CC273MAT12 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 is currently active in production with 1132 units in stock inventory. Equivalent and substitute parts are identified to support procurement flexibility, design optimization, and supply chain continuity.

Substiute Parts

1812CC273MAT12

KYOCERA AVXIn Stock: 12391812CC273MAT12 Datasheet

Current PartRFQ

1812AC273KAT1A

KYOCERA AVXIn Stock: 24891812AC273KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812CC273MAT12 is determined by the following critical parameters:

• Capacitance Value: Must be 0.027 µF (exact match required)
• Temperature Coefficient: Must be X7R (ensures stable capacitance across operating temperature range)
• Package / Case: Must be 1812 (4532 Metric) (ensures mechanical and electrical compatibility with PCB layout)
• Mounting Type: Must be Surface Mount, MLCC (maintains assembly process compatibility)
• Operating Temperature Range: Must support -55°C to 125°C minimum
• Voltage Rating: Must be equal to or greater than 630V (higher voltage ratings provide design margin and are acceptable substitutes)
• Tolerance: May vary; tighter tolerances (±10%) are acceptable upgrades
• RoHS / REACH Compliance: Must maintain ROHS3 Compliant and REACH Unaffected status

The substitute part 1812AC273KAT1A meets all substitution criteria with an upgraded voltage rating of 1000V (1kV) and improved tolerance of ±10%.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812CC273MAT12 and 1812AC273KAT1A are active production parts manufactured by KYOCERA AVX with full ROHS3 compliance and REACH unaffected status. The 1812AC273KAT1A provides design advantages through higher voltage rating (1000V vs. 630V) and tighter capacitance tolerance (±10% vs. ±20%), making it suitable for applications requiring enhanced voltage margin or stricter capacitance stability. The substitute part maintains identical capacitance, temperature coefficient, and operating temperature range, ensuring functional equivalence. Physical footprint compatibility is confirmed for both parts in the 1812 package, though the substitute exhibits increased thickness (2.80mm vs. 1.80mm), which must be verified against PCB assembly clearance requirements.

Frequently Asked Questions (FAQ)

Q: Can 1812AC273KAT1A be used as a direct replacement for 1812CC273MAT12?

A: Yes. Both parts share identical capacitance (0.027 µF), temperature coefficient (X7R), operating temperature range (-55°C to 125°C), and 1812 package footprint. The substitute provides higher voltage rating (1000V vs. 630V) and tighter tolerance (±10% vs. ±20%), making it functionally compatible and electrically superior for the same application.

Q: What is the impact of the increased thickness in the substitute part?

A: The 1812AC273KAT1A has a maximum thickness of 2.80mm compared to 1.80mm for the main part. This 1.00mm difference must be evaluated against PCB assembly clearance, component stacking height, and enclosure constraints. Verify clearance before design implementation.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical environmental and regulatory certifications. Both are classified as EAR99 for export control purposes.

Q: Why would I choose the substitute part over the main part?

A: The 1812AC273KAT1A is selected when design requirements include higher voltage margin (1000V rating provides 370V additional headroom), stricter capacitance tolerance (±10% vs. ±20%), or when supply availability of the main part is constrained. Both parts are currently in active production with adequate inventory.

Q: Is packaging format different between these parts?

A: The main part is specified with standard packaging, while the substitute is supplied in Tape & Reel (TR) format. Verify packaging compatibility with your procurement and assembly processes.