KYOCERA AVX 1812GC332MAT3A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The KYOCERA AVX 1812GC332MAT3A is a high-voltage ceramic capacitor with a capacitance of 3300 pF, rated for 2000V (2kV) operation. This Surface Mount MLCC (Multilayer Ceramic Capacitor) in 1812 (4532 Metric) package format is designed for general-purpose applications requiring high-voltage performance. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance can be maintained within the specified operating parameters while accommodating design flexibility or inventory availability.

Substiute Parts

1812GC332MAT3A\SB

KYOCERA AVXIn Stock: 9221812GC332MAT3A\SB Datasheet

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1812HC332KAT1A

KYOCERA AVXIn Stock: 70741812HC332KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812GC332MAT3A is determined by the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 3300 pF (exact match required)
• Temperature Coefficient: X7R (ensures stable performance across operating temperature range)
• Package / Case: 1812 (4532 Metric) (physical and electrical compatibility)
• Mounting Type: Surface Mount, MLCC (assembly compatibility)
• Operating Temperature Range: -55°C ~ 125°C (functional equivalence)

Allowable Variation Parameters:

• Voltage - Rated: May be equal to or greater than 2000V (higher voltage rating provides design margin)
• Tolerance: May be tighter (±10% is acceptable; ±20% is baseline)
• Thickness: Variation permitted within assembly constraints

The identified substitute part 1812HC332KAT1A meets all mandatory matching criteria while providing enhanced voltage rating (3000V) and improved tolerance (±10%), making it suitable for applications where higher voltage margin or tighter capacitance tolerance is beneficial.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812GC332MAT3A and 1812HC332KAT1A are Active products with full ROHS3 compliance and REACH Unaffected status, ensuring regulatory compliance for current and future applications. The 1812HC332KAT1A substitute provides enhanced design margin through its 3000V voltage rating compared to the 2000V rating of the main part, while maintaining identical capacitance and temperature coefficient specifications. The tighter ±10% tolerance of the substitute part offers improved capacitance accuracy. The thickness difference (0.110" vs. 0.087") must be evaluated against PCB assembly constraints and available board space. Both parts share identical length and width dimensions, ensuring footprint compatibility on the circuit board.

Frequently Asked Questions (FAQ)

Q: Can the 1812HC332KAT1A be used as a direct replacement for the 1812GC332MAT3A?

A: Yes. Both parts share identical capacitance (3300 pF), temperature coefficient (X7R), package format (1812/4532 Metric), and operating temperature range (-55°C ~ 125°C). The substitute provides higher voltage rating (3000V vs. 2000V) and tighter tolerance (±10% vs. ±20%), making it functionally compatible. The increased thickness (0.110" vs. 0.087") must be verified against PCB assembly clearance requirements.

Q: What are the key differences between these two parts?

A: The primary differences are voltage rating (3000V substitute vs. 2000V main part), tolerance specification (±10% vs. ±20%), and maximum thickness (2.80mm vs. 2.20mm). Capacitance, package, and temperature performance are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1812GC332MAT3A and 1812HC332KAT1A are ROHS3 Compliant with REACH Unaffected status.

Q: What does MSL 1 (Unlimited) mean for these capacitors?

A: MSL 1 indicates the lowest moisture sensitivity level, meaning these parts have unlimited shelf life and do not require special moisture control during storage or handling.

Q: Does the thickness difference affect PCB assembly?

A: The substitute part is 0.60mm thicker (2.80mm vs. 2.20mm). This must be evaluated against available PCB clearance, component stacking height requirements, and assembly equipment specifications to ensure compatibility with your specific design.

Q: Can I use the 1812GC332MAT3A in applications designed for the 1812HC332KAT1A?

A: No. The main part has a lower voltage rating (2000V vs. 3000V). Using it in an application specified for 3000V operation would exceed the part's voltage rating and create reliability risk.