1812AC273MATME Equivalent & Substitute Parts

Part Overview

The 1812AC273MATME is a 0.027 µF ceramic capacitor rated for 1000V (1kV) with X7R temperature coefficient, manufactured by KYOCERA AVX. This high-voltage surface-mount multilayer ceramic capacitor (MLCC) is designed for general-purpose applications requiring stable capacitance across a wide operating temperature range of -55°C to 125°C. The part is currently active and in stock with 1067 units available. Substitute parts are identified when electrical specifications remain within acceptable tolerances while maintaining mechanical compatibility and compliance certifications.

Substiute Parts

1812AC273MATME

KYOCERA AVXIn Stock: 10861812AC273MATME 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 1812AC273MATME is determined by strict adherence to the following parameters:

• Capacitance Value: Must be 0.027 µF (no variation permitted)
• Voltage Rating: Must be 1000V (1kV) minimum
• Temperature Coefficient: Must be X7R (ensures equivalent thermal performance)
• Package Designation: Must be 1812 (4532 Metric) for PCB footprint compatibility
• Mounting Technology: Must be Surface Mount MLCC
• Operating Temperature Range: Must support -55°C to 125°C
• Compliance Standards: Must maintain ROHS3 compliance and REACH unaffected status

The identified substitute part 1812AC273KAT1A meets all mandatory electrical and mechanical parameters. The primary difference is tolerance specification (±10% versus ±20%), which represents an improvement in capacitance accuracy without affecting substitutability.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812AC273MATME and 1812AC273KAT1A are active products from KYOCERA AVX with identical electrical ratings, mechanical dimensions, and compliance certifications. Selection between these parts should be based on the following factors:

• Tolerance Requirements: If circuit design requires tighter capacitance tolerance, the 1812AC273KAT1A (±10%) is the appropriate selection over the 1812AC273MATME (±20%).
• Inventory Availability: The 1812AC273KAT1A has higher stock availability (2413 units) compared to 1812AC273MATME (1067 units).
• Packaging Format: The 1812AC273KAT1A is supplied in Tape & Reel (TR) format, suitable for automated assembly processes.
• Compliance Assurance: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory requirements are met in either selection.

Frequently Asked Questions (FAQ)

Q: Can 1812AC273KAT1A be used as a direct replacement for 1812AC273MATME?

A: Yes. Both parts have identical capacitance (0.027 µF), voltage rating (1000V), temperature coefficient (X7R), package dimensions (1812/4532 Metric), and operating temperature range (-55°C to 125°C). The substitute has improved tolerance specification (±10% versus ±20%), which does not prevent substitution.

Q: What is the difference between these two part numbers?

A: The primary difference is capacitance tolerance. The 1812AC273MATME specifies ±20% tolerance, while 1812AC273KAT1A specifies ±10% tolerance. The 1812AC273KAT1A also uses Tape & Reel packaging versus the standard packaging of 1812AC273MATME. All other electrical and mechanical specifications are identical.

Q: Are there any thermal performance differences between these parts?

A: No. Both parts use the X7R temperature coefficient and support the identical operating temperature range of -55°C to 125°C. Thermal performance is equivalent.

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both parts use the 1812 (4532 Metric) package with identical dimensions: 0.181" L x 0.126" W (4.60mm x 3.20mm) and maximum thickness of 0.110" (2.80mm). PCB footprint compatibility is guaranteed.

Q: Are both parts compliant with current regulations?

A: Yes. Both the 1812AC273MATME and 1812AC273KAT1A are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.