1812SC332MAT3A\SB Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812SC332MAT3A\SB is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 3300 pF, rated for 1500V (1.5kV) operation. This surface-mount multilayer ceramic capacitor (MLCC) features X7R temperature coefficient characteristics and is designed for general-purpose applications requiring stable performance across the -55°C to 125°C operating range. 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 achieved through alternative manufacturers or upgraded specifications while maintaining mechanical compatibility and compliance requirements.

Substiute Parts

1812SC332MAT3A\SB

KYOCERA AVXIn Stock: 10681812SC332MAT3A\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 1812SC332MAT3A\SB is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Capacitance value: 3300 pF (exact match required)
• Package / Case: 1812 (4532 Metric) form factor (mechanical fit requirement)
• Mounting type: Surface Mount, MLCC (assembly compatibility)
• Temperature coefficient: X7R (performance stability requirement)
• Operating temperature range: -55°C to 125°C minimum (functional envelope)

Allowable Variation Parameters:

• Voltage rating: May be equal to or greater than 1500V (higher voltage rating provides design margin)
• Tolerance: May be tighter than ±20% (improved accuracy acceptable)
• Thickness: Variation permitted within PCB assembly constraints
• Manufacturer: Alternative qualified manufacturers acceptable

The identified substitute part 1812HC332KAT1A meets all mandatory criteria while providing an upgraded voltage rating of 3000V (3kV) and improved tolerance of ±10%, making it suitable for applications requiring enhanced performance margins.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812SC332MAT3A\SB and 1812HC332KAT1A maintain Active product status with full ROHS3 compliance and REACH unaffected designation. The substitute part 1812HC332KAT1A provides identical electrical performance at the specified capacitance value while offering a doubled voltage rating (3000V versus 1500V) and improved tolerance specification (±10% versus ±20%). The increased thickness of 0.110" (2.80mm) versus 0.087" (2.20mm) must be evaluated for PCB assembly clearance. Both parts are manufactured by KYOCERA AVX and share identical mechanical footprint dimensions (0.181" L x 0.126" W), ensuring direct form-fit compatibility in 1812 package applications. Selection between these parts depends on circuit voltage requirements and available PCB assembly height margin.

Frequently Asked Questions (FAQ)

Q: Can 1812HC332KAT1A be used as a direct replacement for 1812SC332MAT3A\SB?

A: Yes, for applications where the circuit voltage does not exceed 1500V. The substitute part maintains identical capacitance (3300 pF), temperature coefficient (X7R), and operating temperature range (-55°C to 125°C). The higher voltage rating of 3000V provides additional design margin. PCB assembly clearance must accommodate the increased thickness of 0.110" (2.80mm).

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

A: The voltage rating differs: 1812SC332MAT3A\SB is rated for 1500V (1.5kV), while 1812HC332KAT1A is rated for 3000V (3kV). Additionally, tolerance improves from ±20% to ±10%, and thickness increases from 0.087" to 0.110".

Q: Are both parts RoHS compliant?

A: Yes, both 1812SC332MAT3A\SB and 1812HC332KAT1A are ROHS3 compliant with REACH unaffected status.

Q: Does the increased thickness of the substitute part affect PCB assembly?

A: The thickness difference of 0.023" (0.60mm) must be evaluated against available PCB assembly height constraints. Both parts maintain identical footprint dimensions (0.181" L x 0.126" W), so lateral fit is unchanged.

Q: What is the moisture sensitivity rating for both parts?

A: Both parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating no moisture sensitivity restrictions for storage or handling.