1812SC332MAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812SC332MAT1A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 3300 pF, rated for 1500V operation, and featuring X7R temperature stability across -55°C to 125°C. This surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 Metric) package is designed for general-purpose high-voltage applications. The part maintains Active product status with 991 units currently in stock. Equivalent and substitute parts are identified when design requirements permit voltage uprating, tolerance improvements, or inventory optimization while maintaining core electrical and mechanical compatibility.

Substiute Parts

1812SC332MAT1A\SB

KYOCERA AVXIn Stock: 10251812SC332MAT1A\SB Datasheet

Current PartRFQ

1812HC332KAT1A

KYOCERA AVXIn Stock: 70741812HC332KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812SC332MAT1A is determined by the following criteria:

Mandatory Compatibility Parameters:

• Capacitance value: 3300 pF (exact match required)
• Package / Case: 1812 (4532 Metric) (exact match required)
• Temperature Coefficient: X7R (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)

Allowable Variation Parameters:

• Voltage Rating: Equal to or greater than 1500V
• Tolerance: Equal to or tighter than ±20%
• Physical thickness: May vary within component height constraints
• Packaging format: May differ (bulk, tape & reel)

The identified substitute 1812HC332KAT1A maintains all mandatory parameters while providing voltage uprating to 3000V and improved tolerance of ±10%, making it suitable for applications requiring enhanced voltage margin or tighter capacitance specification.

Parameter Comparison

Engineering Selection Recommendations

1812SC332MAT1A Selection Criteria:

• Applications operating at or below 1500V with standard tolerance requirements
• Space-constrained designs where minimum thickness (2.20mm) is required
• Designs already qualified to this specific part number

1812HC332KAT1A Selection Criteria:

• Applications requiring voltage margin above 1500V up to 3000V
• Designs requiring tighter capacitance tolerance (±10% vs ±20%)
• Applications where increased component thickness (2.80mm) is acceptable
• Designs benefiting from higher inventory availability (6999 units in stock)

Both parts maintain Active product status, ROHS3 compliance, and unlimited moisture sensitivity rating, ensuring long-term supply continuity and regulatory compliance. Selection between these parts depends on circuit voltage requirements and tolerance specifications rather than availability or compliance factors.

Frequently Asked Questions (FAQ)

Q: Can 1812HC332KAT1A replace 1812SC332MAT1A in existing designs?

A: Direct replacement is possible only if the circuit design accommodates the increased component thickness (2.80mm vs 2.20mm) and if the higher voltage rating (3000V vs 1500V) does not introduce unintended electrical behavior. The capacitance value and all other electrical parameters remain compatible.

Q: What is the primary difference between these two parts?

A: The 1812HC332KAT1A provides double the voltage rating (3000V vs 1500V) and half the tolerance band (±10% vs ±20%). Both parts use identical 1812 package footprint and X7R temperature coefficient.

Q: Are there any compliance or supply chain differences?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99. The substitute part has significantly higher inventory availability (6999 vs 991 units).

Q: Does the thickness difference affect PCB layout?

A: Yes. The 1812HC332KAT1A is 0.60mm thicker (2.80mm vs 2.20mm). PCB designs with height constraints or components mounted on both sides must account for this difference during layout verification.

Q: Can I use 1812SC332MAT1A in applications rated for 3000V?

A: No. The 1812SC332MAT1A is rated for maximum 1500V operation. Using it in 3000V applications exceeds component specifications and creates reliability risk.