1812AC222MAT3A\SB Equivalent & Substitute Parts

Part Overview

The 1812AC222MAT3A\SB is a 2200 pF, 1000V (1kV) ceramic capacitor manufactured by KYOCERA AVX with X7R temperature coefficient, housed in a 1812 (4532 Metric) surface mount package. This component is classified as Active and suitable for general-purpose high-voltage applications. Substitute parts are identified based on matching capacitance, package dimensions, mounting type, and voltage rating compatibility within the 1kV to 2kV range, with tolerance and temperature coefficient variations permitted by application requirements.

Substiute Parts

1812AC222MAT3A\SB

KYOCERA AVXIn Stock: 8351812AC222MAT3A\SB Datasheet

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1812AA222JAT1A

KYOCERA AVXIn Stock: 25411812AA222JAT1A Datasheet

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1812GC222KAT1A

KYOCERA AVXIn Stock: 211151812GC222KAT1A Datasheet

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C4532X7R3D222K130KA

TDK CorporationIn Stock: 2025C4532X7R3D222K130KA Datasheet

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C4532X7R3D222M130KA

TDK CorporationIn Stock: 3701C4532X7R3D222M130KA Datasheet

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C4532X7S3D222K160KA

TDK CorporationIn Stock: 2543C4532X7S3D222K160KA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 1812AC222MAT3A\SB is determined by the following criteria:

Primary Matching Parameters:

• Capacitance: 2200 pF (exact match required)
• Package: 1812 (4532 Metric) surface mount (exact match required)
• Voltage Rating: 1000V minimum (1kV or higher acceptable)
• Temperature Coefficient: X7R or C0G/NP0 (both acceptable for general-purpose applications)
• Tolerance: ±5% to ±20% (tighter tolerance acceptable)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Operating Temperature: -55°C ~ 125°C (exact match required)
• Compliance: ROHS3 Compliant, MSL 1 (Unlimited)

Substitute Categories:

1. Direct Equivalent (Same Voltage, Improved Tolerance): 1812AA222JAT1A — Same manufacturer (KYOCERA AVX), same 1kV rating, improved ±5% tolerance, C0G/NP0 temperature coefficient.

2. Voltage Upgrade (Higher Voltage Rating, Same Capacitance): 1812GC222KAT1A, C4532X7R3D222K130KA, C4532X7R3D222M130KA, C4532X7S3D222K160KA — All rated 2000V (2kV), same 2200 pF capacitance, compatible package dimensions, X7R or X7S temperature coefficient.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Voltage, Same Footprint): Select 1812AA222JAT1A when improved capacitance tolerance (±5% vs. ±20%) is required and the application operates at 1kV. This part maintains KYOCERA AVX manufacturer continuity and Active product status. The C0G/NP0 temperature coefficient provides superior stability compared to X7R.

For Voltage Margin Enhancement: Select 1812GC222KAT1A, C4532X7R3D222K130KA, or C4532X7S3D222K160KA when circuit design requires 2kV voltage rating headroom. All three maintain 2200 pF capacitance and 1812 package compatibility. 1812GC222KAT1A preserves KYOCERA AVX sourcing; TDK alternatives (C4532X7R3D222K130KA, C4532X7S3D222K160KA) offer Active product status and higher inventory availability.

Avoid: C4532X7R3D222M130KA is designated "Not For New Designs" and should not be selected for new circuit implementations.

Dimensional Consideration: TDK parts (C4532X7R3D222K130KA, C4532X7R3D222M130KA, C4532X7S3D222K160KA) have slightly reduced length (0.177" vs. 0.181") and thickness (0.059" vs. 0.071"), which may affect PCB layout compatibility. Verify footprint clearance before substitution.

Frequently Asked Questions (FAQ)

Q: Can I substitute 1812AC222MAT3A\SB with a 2kV-rated capacitor? A: Yes. The 1812GC222KAT1A, C4532X7R3D222K130KA, and C4532X7S3D222K160KA are all rated 2000V (2kV) and maintain the same 2200 pF capacitance and 1812 package. Higher voltage rating does not degrade performance in 1kV applications and provides additional design margin.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R exhibits ±15% capacitance change across the -55°C to 125°C operating range. C0G/NP0 exhibits ±0.3% change, providing superior stability. The 1812AA222JAT1A substitute uses C0G/NP0 for applications requiring tighter capacitance tolerance and temperature stability.

Q: Are TDK C4532 parts physically compatible with KYOCERA AVX 1812 footprints? A: TDK C4532 parts are mechanically compatible but have slightly reduced dimensions (0.177" L x 0.126" W vs. 0.181" L x 0.126" W, and 0.059" thickness vs. 0.071"). Verify PCB layout clearances and solder pad dimensions before substitution.

Q: Why is C4532X7R3D222M130KA marked "Not For New Designs"? A: This part is in legacy status and should not be selected for new circuit implementations. Use C4532X7R3D222K130KA (Active status) as the TDK alternative instead.

Q: What packaging options are available for these substitutes? A: 1812AC222MAT3A\SB is supplied in bulk. Substitutes are available in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® packaging. Verify packaging compatibility with assembly processes before procurement.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitutes maintain ROHS3 Compliant status and Moisture Sensitivity Level 1 (Unlimited), matching the original part's environmental and regulatory compliance.