1812AC222MAT1A Equivalent & Substitute Parts

Part Overview

The 1812AC222MAT1A is a 2200 pF, 1000V (1kV) ceramic capacitor manufactured by KYOCERA AVX with X7R temperature coefficient in 1812 (4532 Metric) surface mount package. This part is Active and ROHS3 compliant. Substitute parts are identified when equivalent capacitance and voltage ratings are required but alternative temperature coefficients, tolerance grades, or voltage ratings provide enhanced performance characteristics or improved availability.

Substiute Parts

1812AC222MAT1A

KYOCERA AVXIn Stock: 9241812AC222MAT1A Datasheet

Current PartRFQ

1812AA222JAT1A

KYOCERA AVXIn Stock: 25411812AA222JAT1A Datasheet

UpgradeRFQ

1812GC222KAT1A

KYOCERA AVXIn Stock: 211151812GC222KAT1A Datasheet

UpgradeRFQ

C4532X7R3D222K130KA

TDK CorporationIn Stock: 2025C4532X7R3D222K130KA Datasheet

UpgradeRFQ

C4532X7R3D222M130KA

TDK CorporationIn Stock: 3701C4532X7R3D222M130KA Datasheet

UpgradeRFQ

C4532X7S3D222K160KA

TDK CorporationIn Stock: 2543C4532X7S3D222K160KA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic is based on the following allowed parameters:

• Capacitance: 2200 pF (exact match required)
• Package / Case: 1812 (4532 Metric) (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Voltage - Rated: 1000V minimum (equal or higher acceptable)
• Temperature Coefficient: X7R or C0G/NP0 (alternative coefficients acceptable)
• Tolerance: ±5% to ±20% (tighter tolerance acceptable)
• RoHS Status: ROHS3 Compliant (required)
• Moisture Sensitivity Level: 1 (Unlimited) (required)

Substitute parts are grouped into three categories: tolerance upgrades (tighter tolerance with same voltage), voltage upgrades (higher voltage rating with same or improved tolerance), and cross-manufacturer alternatives meeting identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

1812AA222JAT1A (KYOCERA AVX): Recommended for applications requiring tighter capacitance tolerance (±5%) while maintaining 1000V rating and same manufacturer continuity. C0G/NP0 temperature coefficient provides superior stability across temperature range. Active product status ensures long-term availability.

1812GC222KAT1A (KYOCERA AVX): Recommended for applications requiring voltage derating margin or higher voltage stress conditions. Maintains same manufacturer and package footprint. ±10% tolerance and 2000V rating provide improved reliability margin. Active product status.

C4532X7R3D222K130KA (TDK Corporation): Cross-manufacturer substitute with identical electrical specifications to 1812GC222KAT1A. Provides 2000V rating with ±10% tolerance and X7R coefficient. Slightly reduced physical dimensions (1.50mm thickness vs 1.80mm). Active product status supports new designs.

C4532X7S3D222K160KA (TDK Corporation): Manufacturer-recommended alternative with X7S temperature coefficient (wider capacitance variation across temperature vs X7R). 2000V rating with ±10% tolerance. Active product status. Selection appropriate when X7S characteristics meet application requirements.

C4532X7R3D222M130KA (TDK Corporation): Not recommended for new designs. Product status indicates obsolescence trajectory. Equivalent to 1812GC222KAT1A electrically but with ±20% tolerance. Use only for legacy system maintenance.

Frequently Asked Questions (FAQ)

Q: Can 1812AA222JAT1A replace 1812AC222MAT1A in all applications?

A: Yes, within voltage and temperature operating conditions. 1812AA222JAT1A provides tighter tolerance (±5% vs ±20%) and C0G/NP0 temperature coefficient, making it suitable for precision applications. Both parts are 1000V rated and identical package dimensions. Verify application does not require X7R specific characteristics.

Q: What is the advantage of 2000V rated substitutes?

A: 2000V rated parts (1812GC222KAT1A, C4532X7R3D222K130KA, C4532X7S3D222K160KA) provide voltage derating margin for reliability in high-stress applications. They maintain 2200 pF capacitance and 1812 package compatibility while offering enhanced voltage safety factor. Suitable for applications with voltage transients or margin requirements.

Q: Are TDK parts physically compatible with KYOCERA AVX footprints?

A: Yes. All parts use identical 1812 (4532 Metric) package designation. TDK parts have slightly reduced thickness (1.50mm vs 1.80mm) and marginally smaller length (4.50mm vs 4.60mm), which are within standard PCB assembly tolerances and do not affect placement or soldering.

Q: Why is C4532X7R3D222M130KA marked "Not For New Designs"?

A: This product status indicates the manufacturer is transitioning away from this part number. While electrically equivalent to other 2000V options, it should not be selected for new designs. Use C4532X7R3D222K130KA or C4532X7S3D222K160KA instead.

Q: What is the difference between X7R and X7S temperature coefficients?

A: Both are high-voltage ceramic dielectric types with -55°C to 125°C operating range. X7R provides ±15% capacitance change over temperature. X7S provides ±22% capacitance change. X7R is preferred for applications requiring tighter capacitance stability; X7S is acceptable where wider variation is tolerated.

Q: Can I use C0G/NP0 (1812AA222JAT1A) where X7R is specified?

A: Yes. C0G/NP0 provides superior temperature stability (±30 ppm/°C) compared to X7R (±15% over range). It is a direct upgrade in terms of stability. Verify application does not specifically require X7R dielectric properties for other reasons (voltage linearity, frequency response).