1812AC273MAT3A\SB Equivalent & Substitute Parts

Part Overview

The 1812AC273MAT3A\SB 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 in production with 757 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization when the primary part number becomes unavailable or when alternative tolerance specifications better suit application requirements.

Substiute Parts

1812AC273MAT3A\SB

KYOCERA AVXIn Stock: 7731812AC273MAT3A\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 1812AC273MAT3A\SB is determined by strict equivalence in the following critical parameters:

• Capacitance Value: 0.027 µF (exact match required)
• Voltage Rating: 1000V (1kV) minimum (equal or higher acceptable)
• Temperature Coefficient: X7R (required for temperature stability)
• Package / Case: 1812 (4532 Metric) (physical and electrical compatibility)
• Mounting Type: Surface Mount, MLCC (assembly process compatibility)
• Operating Temperature Range: -55°C to 125°C (application environment compatibility)
• Compliance Standards: ROHS3 Compliant, REACH Unaffected (regulatory requirement)

The identified substitute part 1812AC273KAT1A meets all critical substitution criteria. The primary difference is tolerance specification: the main part carries ±20% tolerance, while the substitute offers tighter ±10% tolerance. This represents an upgrade in capacitance accuracy without compromising any electrical or mechanical compatibility parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812AC273MAT3A\SB and 1812AC273KAT1A are active production parts from KYOCERA AVX with full ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for current and future applications.

The 1812AC273KAT1A substitute provides improved capacitance tolerance (±10% versus ±20%), which may be advantageous in applications requiring tighter capacitance accuracy. Both parts are electrically and mechanically identical in all critical parameters: capacitance value, voltage rating, temperature coefficient, package dimensions, and operating temperature range.

Selection between these parts should be based on tolerance requirements and packaging format availability. The main part is available in bulk packaging, while the substitute is supplied in Tape & Reel format, which may influence procurement decisions based on assembly line requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can 1812AC273KAT1A be used as a direct replacement for 1812AC273MAT3A\SB?

A: Yes. Both parts are electrically and mechanically equivalent. They share 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 offers tighter tolerance (±10% versus ±20%).

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

A: The main differences are tolerance specification and packaging format. The 1812AC273KAT1A has ±10% tolerance compared to ±20% for the main part, and is supplied in Tape & Reel packaging rather than bulk.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both 1812AC273MAT3A\SB and 1812AC273KAT1A are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Do these parts have the same physical dimensions?

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). They are mechanically interchangeable on PCB layouts.

Q: What is the moisture sensitivity level for these capacitors?

A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Which part should be selected for applications requiring high capacitance accuracy?

A: The 1812AC273KAT1A with ±10% tolerance is suitable for applications requiring tighter capacitance accuracy compared to the ±20% tolerance of the main part.