Equivalent & Substitute Parts for 1812CC273MAT1A

Part Overview

The 1812CC273MAT1A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX, rated at 0.027 µF with 630V maximum voltage and X7R temperature coefficient. This Surface Mount MLCC (Multilayer Ceramic Capacitor) in 1812 (4532 Metric) package is designed for general-purpose applications requiring stable capacitance across the -55°C to 125°C operating range. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent capacitance and package geometry are maintained while allowing for improved electrical ratings or tolerance specifications.

Substiute Parts

1812CC273MAT1A\SB

KYOCERA AVXIn Stock: 6841812CC273MAT1A\SB 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 1812CC273MAT1A is determined by the following criteria:

• Capacitance Value: Must be 0.027 µF (no tolerance variation acceptable)
• Package Geometry: Must be 1812 (4532 Metric) to ensure PCB footprint compatibility
• Temperature Coefficient: Must be X7R to maintain stable capacitance across operating temperature range
• Mounting Type: Must be Surface Mount MLCC
• Voltage Rating: May be equal to or greater than 630V (higher voltage ratings provide design margin)
• Tolerance: May be equal to or tighter than ±20%
• Compliance: Must maintain ROHS3 and REACH compliance status

The identified substitute part 1812AC273KAT1A meets all mandatory criteria while providing improved voltage rating (1000V vs 630V) and tighter tolerance (±10% vs ±20%).

Parameter Comparison

Engineering Selection Recommendations

Both the 1812CC273MAT1A and 1812AC273KAT1A are active production parts with ROHS3 compliance and REACH unaffected status, making either suitable for new designs. The 1812AC273KAT1A provides enhanced design margin through its 1000V voltage rating compared to the 630V rating of the main part, while also offering improved tolerance specification (±10% vs ±20%). Both parts maintain identical capacitance, temperature coefficient, and operating temperature range. Selection between these parts should be based on circuit voltage requirements and tolerance specifications. The increased thickness of the substitute part (2.80mm vs 1.80mm) must be verified against PCB assembly clearance constraints.

Frequently Asked Questions (FAQ)

Q: Can 1812AC273KAT1A be used as a direct replacement for 1812CC273MAT1A?

A: Yes, provided that PCB assembly clearance accommodates the increased thickness (2.80mm vs 1.80mm). Both parts share identical footprint dimensions (4.60mm × 3.20mm), capacitance value (0.027 µF), and temperature coefficient (X7R).

Q: What is the primary difference between these two parts?

A: The substitute part features a higher voltage rating (1000V vs 630V) and tighter tolerance specification (±10% vs ±20%). Both maintain the same capacitance value and package geometry.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL 1 (Unlimited) moisture sensitivity ratings.

Q: Does the thickness difference affect PCB layout?

A: The substitute part is 1.00mm thicker (2.80mm vs 1.80mm). PCB assembly height clearance must be verified to ensure no interference with adjacent components or enclosure constraints.

Q: Can the main part be substituted with a lower voltage rating?

A: No. Substitute parts must maintain equal or higher voltage ratings than the original specification to preserve circuit safety margins.