1812SC682MAT3A\SB Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812SC682MAT3A\SB is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 6800 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 848 units currently in stock. Substitute parts are identified when equivalent electrical performance can be achieved while maintaining or improving upon the original specifications within the same physical package footprint.

Substiute Parts

1812SC682MAT3A\SB

KYOCERA AVXIn Stock: 8821812SC682MAT3A\SB Datasheet

Current PartRFQ

1812GC682KAT1A

KYOCERA AVXIn Stock: 127811812GC682KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812SC682MAT3A\SB is determined by the following critical parameters:

Mandatory Matching Criteria:

• Capacitance value: 6800 pF (exact match required)
• Package / Case: 1812 (4532 Metric) (physical compatibility)
• Temperature Coefficient: X7R (performance stability requirement)
• Mounting Type: Surface Mount, MLCC (assembly compatibility)
• Operating Temperature Range: -55°C to 125°C (functional envelope)

Allowable Variation Parameters:

• Voltage Rating: Equal to or greater than 1500V (1.5kV) - higher ratings provide enhanced margin
• Tolerance: ±20% or tighter (±10% represents improvement)
• RoHS and REACH compliance status (regulatory alignment)

The substitute part 1812GC682KAT1A meets all mandatory criteria while providing improved voltage rating (2000V vs. 1500V) and tighter tolerance (±10% vs. ±20%), making it a direct upgrade-capable substitute.

Parameter Comparison

Engineering Selection Recommendations

The 1812GC682KAT1A qualifies as a direct substitute for the 1812SC682MAT3A\SB based on identical capacitance, package, temperature coefficient, and operating temperature specifications. Both parts maintain Active product status and full ROHS3 compliance with unlimited moisture sensitivity rating.

The substitute part provides two measurable improvements: elevated voltage rating (2000V vs. 1500V) and tighter capacitance tolerance (±10% vs. ±20%). These enhancements do not introduce incompatibility; they extend the operational margin and improve circuit performance predictability. Physical footprint and mounting characteristics remain identical, ensuring direct PCB compatibility without layout modification.

Selection between these parts should be based on circuit voltage requirements and tolerance specifications. The 1812SC682MAT3A\SB remains appropriate for applications with 1500V maximum voltage exposure and ±20% tolerance acceptance. The 1812GC682KAT1A is suitable for circuits requiring higher voltage margin or tighter capacitance control.

Frequently Asked Questions (FAQ)

Q: Can the 1812GC682KAT1A replace the 1812SC682MAT3A\SB in existing designs?

A: Yes. Both parts share identical capacitance (6800 pF), package (1812/4532 Metric), temperature coefficient (X7R), and operating temperature range (-55°C to 125°C). The substitute part's higher voltage rating (2000V vs. 1500V) and tighter tolerance (±10% vs. ±20%) do not create incompatibility. Direct PCB substitution is possible without circuit modification.

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

A: The primary differences are voltage rating and tolerance. The 1812GC682KAT1A operates at 2000V with ±10% tolerance, while the 1812SC682MAT3A\SB is rated for 1500V with ±20% tolerance. All other electrical and mechanical specifications are identical.

Q: Are both parts physically identical?

A: Yes. Both parts use the 1812 (4532 Metric) package with identical dimensions (0.181" L × 0.126" W / 4.60mm × 3.20mm) and thickness (0.110" / 2.80mm). They are mechanically interchangeable on the PCB.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental compliance is equivalent.

Q: Which part should I select for a new design?

A: Selection depends on circuit requirements. If your design operates below 1500V and accepts ±20% tolerance, either part is suitable. If your design requires voltage margin above 1500V or needs tighter capacitance control, the 1812GC682KAT1A is the appropriate choice.

Q: Can I use the 1812SC682MAT3A\SB in place of the 1812GC682KAT1A?

A: No. The 1812SC682MAT3A\SB has a lower voltage rating (1500V vs. 2000V) and wider tolerance (±20% vs. ±10%). Using it as a substitute would reduce voltage margin and increase capacitance variation, potentially compromising circuit performance in applications designed for the higher-rated part.