1812AC223MAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812AC223MAT1A is a 0.022 µF high-voltage ceramic capacitor manufactured by KYOCERA AVX, rated for 1000V operation with X7R temperature coefficient characteristics. This Surface Mount MLCC (Multilayer Ceramic Capacitor) in 1812 (4532 Metric) package format is designed for general-purpose applications requiring stable capacitance across the -55°C to 125°C operating temperature range. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified to address inventory availability, tolerance requirements, or alternative sourcing needs while maintaining electrical and mechanical compatibility.

Substiute Parts

1812AC223MAT1A\SB

KYOCERA AVXIn Stock: 7681812AC223MAT1A\SB Datasheet

Current PartRFQ

1812AC223KAT1A

KYOCERA AVXIn Stock: 66091812AC223KAT1A Datasheet

UpgradeRFQ

CHV1812N1K0223MXT

Cal-Chip Electronics, Inc.In Stock: 9123CHV1812N1K0223MXT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1812AC223MAT1A are qualified based on the following critical parameters that determine functional interchangeability:

• Capacitance Value: Must be 0.022 µF (no deviation permitted)
• Voltage Rating: Must be 1000V (1kV) minimum
• Temperature Coefficient: Must be X7R (ensures stable capacitance across operating temperature range)
• Package Format: Must be 1812 (4532 Metric) for PCB footprint compatibility
• Mounting Type: Must be Surface Mount MLCC
• Operating Temperature Range: Must support -55°C to 125°C
• Compliance: Must maintain ROHS3 and REACH compliance status

Tolerance variations (±20% vs. ±10%) and packaging format differences (bulk vs. Tape & Reel) do not affect electrical substitutability but may impact procurement and assembly workflows. Physical thickness variations within the 1812 package envelope remain compatible with standard PCB assembly processes.

Parameter Comparison

Engineering Selection Recommendations

1812AC223KAT1A (KYOCERA AVX - Upgrade Option)

This substitute offers improved tolerance specification (±10% vs. ±20%), providing tighter capacitance control for applications requiring enhanced precision. Both parts are manufactured by KYOCERA AVX and maintain identical electrical ratings, temperature characteristics, and compliance certifications. The upgrade variant is available in Tape & Reel packaging with higher inventory levels (6531 pcs), supporting high-volume production requirements. Selection of this part is appropriate when tolerance tightening improves circuit performance or when KYOCERA AVX supply chain continuity is prioritized.

CHV1812N1K0223MXT (Cal-Chip Electronics, Inc. - Direct Substitute)

This alternative from Cal-Chip Electronics maintains all critical electrical parameters and compliance requirements. The part exhibits a maximum thickness of 0.118" (3.00mm), which is 0.008" greater than the main part but remains within standard 1812 package envelope tolerances for PCB assembly compatibility. This substitute is suitable for applications where multi-source component qualification is required or when Cal-Chip Electronics supply availability is advantageous. The part is available in Tape & Reel format with substantial inventory (9045 pcs).

Both substitute parts are qualified for direct replacement based on matching capacitance, voltage rating, temperature coefficient, package format, and compliance status. Selection between options depends on sourcing strategy, tolerance requirements, and supply chain considerations rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can 1812AC223KAT1A replace 1812AC223MAT1A in existing designs?

A: Yes. Both parts share identical capacitance (0.022 µF), voltage rating (1000V), temperature coefficient (X7R), package format (1812), and operating temperature range (-55°C to 125°C). The tolerance improvement (±10% vs. ±20%) in the substitute part provides enhanced precision without requiring design modifications.

Q: What is the significance of the tolerance difference between ±20% and ±10%?

A: Tolerance defines the allowable deviation of actual capacitance from the nominal 0.022 µF value. The ±20% specification permits capacitance between 0.0176 µF and 0.0264 µF, while ±10% constrains the range to 0.0198 µF to 0.0242 µF. Applications requiring tighter capacitance control benefit from the ±10% specification. General-purpose circuits typically function within either tolerance range.

Q: Is the 0.008" thickness difference between CHV1812N1K0223MXT (0.118") and 1812AC223MAT1A (0.110") a compatibility concern?

A: No. Both parts conform to the 1812 (4532 Metric) package standard, which accommodates thickness variations within the specified envelope. Standard PCB assembly equipment and solder reflow processes are designed to handle this dimensional range without modification.

Q: Are all three parts ROHS3 compliant?

A: Yes. The main part (1812AC223MAT1A), upgrade substitute (1812AC223KAT1A), and direct substitute (CHV1812N1K0223MXT) all carry ROHS3 compliance certification, meeting environmental and hazardous substance restrictions for electronic components.

Q: What packaging formats are available for these parts?

A: The main part (1812AC223MAT1A) is available in standard packaging. Both substitute parts (1812AC223KAT1A and CHV1812N1K0223MXT) are supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly operations.

Q: Can these parts be used interchangeably in high-voltage applications?

A: Yes. All three parts are rated for 1000V operation and feature X7R temperature coefficient stability across the -55°C to 125°C range, making them suitable for high-voltage general-purpose applications without performance degradation.