1812AC273MAT1A\SB Equivalent & Substitute Parts

Part Overview

The 1812AC273MAT1A\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 ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

1812AC273MAT1A\SB

KYOCERA AVXIn Stock: 9511812AC273MAT1A\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 1812AC273MAT1A\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) (mechanical and electrical compatibility)
• Mounting Type: Surface Mount, MLCC (assembly process compatibility)
• Physical Dimensions: 0.181" L × 0.126" W, 0.110" maximum thickness (PCB layout and thermal management)
• Compliance Standards: ROHS3 Compliant, REACH Unaffected (regulatory requirements)

The substitute part 1812AC273KAT1A meets all critical parameters with one functional improvement: tolerance specification of ±10% versus ±20% for the main part, providing tighter capacitance accuracy without compromising electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812AC273MAT1A\SB and 1812AC273KAT1A are active production parts manufactured by KYOCERA AVX with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on the following criteria:

1812AC273MAT1A\SB is appropriate for applications where capacitance tolerance of ±20% is acceptable and bulk packaging meets procurement requirements.

1812AC273KAT1A is appropriate for applications requiring tighter capacitance accuracy (±10% tolerance) and where tape & reel packaging aligns with automated assembly processes. This substitute provides improved component consistency without electrical or mechanical trade-offs.

Both parts are suitable for high-voltage general-purpose applications operating within the -55°C to 125°C temperature range. Regulatory compliance is equivalent across both options.

Frequently Asked Questions (FAQ)

Q: Can 1812AC273KAT1A be used as a direct replacement for 1812AC273MAT1A\SB?

A: Yes. Both parts share identical capacitance (0.027 µF), voltage rating (1000V), temperature coefficient (X7R), package dimensions (1812/4532 Metric), and mounting type (Surface Mount, MLCC). The substitute offers improved tolerance specification (±10% versus ±20%) with no electrical or mechanical compatibility issues.

Q: What is the difference in tolerance between these parts?

A: The main part has ±20% tolerance, while the substitute has ±10% tolerance. This means the substitute maintains capacitance value within a tighter range, providing greater consistency in circuit performance where capacitance accuracy is critical.

Q: Are there packaging differences between these parts?

A: Yes. The 1812AC273MAT1A\SB is supplied in bulk packaging, while the 1812AC273KAT1A is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated pick-and-place assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for electronic component manufacturing and use.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 1812 (4532 Metric) package with identical dimensions of 0.181" L × 0.126" W and maximum thickness of 0.110" (2.80mm), ensuring PCB layout and thermal management compatibility.

Q: What is the moisture sensitivity level for both parts?

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