1812AA221MAT1A\SB Equivalent & Substitute Parts

Part Overview

The 1812AA221MAT1A\SB is a 220 pF ceramic capacitor manufactured by KYOCERA AVX, rated for 1000V (1kV) operation with C0G/NP0 temperature coefficient characteristics. This surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 Metric) package format is designed for general-purpose high-voltage applications requiring stable capacitance across the operating temperature range of -55°C to 125°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, or meet specific tolerance and voltage rating requirements.

Substiute Parts

1812AA221MAT1A\SB

KYOCERA AVXIn Stock: 12381812AA221MAT1A\SB Datasheet

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1812AA221KAT1A

KYOCERA AVXIn Stock: 69581812AA221KAT1A Datasheet

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C4532C0G3F221K200KA

TDK CorporationIn Stock: 40033C4532C0G3F221K200KA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1812AA221MAT1A\SB are qualified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Capacitance value: 220 pF (exact match required)
• Temperature coefficient: C0G/NP0 (ensures stable performance across operating temperature range)
• Package / Case: 1812 (4532 Metric) (mechanical and electrical compatibility)
• Mounting type: Surface Mount, MLCC (assembly compatibility)
• Voltage rating: Equal to or greater than 1000V (1kV) (ensures safe operation margin)

Secondary Considerations:

• Tolerance: ±10% or ±20% (tighter tolerance represents upgrade path)
• Manufacturer: Alternative qualified sources (KYOCERA AVX, TDK Corporation)
• RoHS and REACH compliance status (regulatory alignment)

Substitutes are grouped into two categories: direct equivalents with improved tolerance specifications and upgraded variants with enhanced voltage ratings.

Parameter Comparison

Engineering Selection Recommendations

1812AA221KAT1A (KYOCERA AVX): This substitute offers improved tolerance specification (±10% versus ±20%) while maintaining identical voltage rating, package dimensions, and thermal characteristics. Both parts are manufactured by KYOCERA AVX and carry Active product status with ROHS3 compliance. Selection of this substitute is appropriate when tighter capacitance tolerance is required without increasing voltage margin or physical footprint.

C4532C0G3F221K200KA (TDK Corporation): This substitute provides enhanced voltage rating (3000V versus 1000V) with improved tolerance (±10%). The increased thickness (2.20mm versus 1.45mm) and minor length variation (4.50mm versus 4.60mm) must be evaluated for PCB layout compatibility. This substitute is suitable for applications requiring higher voltage safety margin or when operating conditions may exceed the original 1kV specification. Both parts maintain ROHS3 compliance and Active product status.

All three parts share identical capacitance value, temperature coefficient, operating temperature range, and moisture sensitivity rating, ensuring functional compatibility in general-purpose high-voltage circuit applications.

Frequently Asked Questions (FAQ)

Q: Can 1812AA221KAT1A be used as a direct replacement for 1812AA221MAT1A\SB?

A: Yes. Both parts are manufactured by KYOCERA AVX with identical 220 pF capacitance, 1000V voltage rating, C0G/NP0 temperature coefficient, and 1812 (4532 Metric) package. The primary difference is tolerance specification: 1812AA221KAT1A offers ±10% tolerance compared to ±20% for the main part. This represents an upgrade path with no electrical or mechanical incompatibility.

Q: What are the physical constraints when substituting C4532C0G3F221K200KA?

A: C4532C0G3F221K200KA has a maximum thickness of 2.20mm compared to 1.45mm for the main part—a 0.75mm increase. Length is 4.50mm versus 4.60mm (0.10mm shorter). Width remains 3.20mm. PCB layout must accommodate the increased height to prevent component interference or assembly issues. Verify clearance above the component before implementation.

Q: Are all three parts suitable for the same application?

A: All three parts share 220 pF capacitance, C0G/NP0 temperature coefficient, and -55°C to 125°C operating range, making them functionally compatible for general-purpose high-voltage applications. The main differences are tolerance (±20% versus ±10%) and voltage rating (1000V versus 3000V). Selection depends on specific circuit requirements for capacitance accuracy and voltage safety margin.

Q: What compliance certifications apply to all substitute parts?

A: All three parts are ROHS3 compliant, REACH unaffected, and carry ECCN EAR99 classification. Moisture sensitivity level is 1 (Unlimited) for all parts, indicating no special moisture handling requirements during storage or assembly.

Q: Can C4532C0G3F221K200KA be used in applications rated for 1000V?

A: Yes. C4532C0G3F221K200KA is rated for 3000V operation, which exceeds the 1000V requirement. The higher voltage rating provides additional safety margin and is electrically compatible with 1000V-rated circuits. Physical dimensions must still be verified for PCB compatibility.