1812GC392MAT1A Equivalent & Substitute Parts

Part Overview

The 1812GC392MAT1A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 3900 pF, rated for 2000V (2kV) operation, and featuring 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 operating temperature range of -55°C to 125°C. The part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required, or when design specifications allow for enhanced ratings.

Substiute Parts

1812GC392MAT1A\SB

KYOCERA AVXIn Stock: 10481812GC392MAT1A\SB Datasheet

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1812HC392KAT1A

KYOCERA AVXIn Stock: 46461812HC392KAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812GC392MAT1A is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Capacitance value: 3900 pF (exact match required)
• Temperature Coefficient: X7R (ensures stable performance across operating temperature range)
• Package / Case: 1812 (4532 Metric) (ensures mechanical fit and PCB compatibility)
• Mounting Type: Surface Mount, MLCC (maintains assembly process compatibility)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)

Allowable Variation Parameters:

• Voltage - Rated: May be equal to or greater than 2000V (higher voltage rating provides design margin and reliability enhancement)
• Tolerance: May be equal to or tighter than ±20% (tighter tolerance improves circuit performance)
• Thickness (Max): Variation acceptable within PCB assembly constraints
• Packaging Format: Tape & Reel (TR) acceptable as alternative to standard packaging

The 1812HC392KAT1A qualifies as a substitute part because it maintains identical capacitance, temperature coefficient, package format, and operating temperature range while providing enhanced voltage rating (3000V vs. 2000V) and improved tolerance (±10% vs. ±20%).

Parameter Comparison

Engineering Selection Recommendations

Both the 1812GC392MAT1A and 1812HC392KAT1A maintain Active product status and full ROHS3 compliance, ensuring long-term availability and regulatory conformance. The 1812HC392KAT1A provides enhanced design margin through increased voltage rating (3000V vs. 2000V) and improved capacitance tolerance (±10% vs. ±20%), making it suitable for applications where stricter performance specifications or higher reliability margins are required. The increased thickness (2.80mm vs. 2.20mm) must be verified against PCB assembly clearance constraints. Both parts are manufactured by KYOCERA AVX and share identical electrical characteristics in capacitance and temperature coefficient, ensuring functional interchangeability within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the 1812HC392KAT1A directly replace the 1812GC392MAT1A in existing designs?

A: Direct substitution is possible when PCB assembly clearance accommodates the increased thickness of 2.80mm (vs. 2.20mm). Both parts share identical capacitance (3900 pF), temperature coefficient (X7R), package footprint (1812/4532 Metric), and operating temperature range (-55°C ~ 125°C). The higher voltage rating of the substitute part does not create compatibility issues.

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

A: The primary differences are voltage rating (2000V vs. 3000V), capacitance tolerance (±20% vs. ±10%), and maximum thickness (2.20mm vs. 2.80mm). All other electrical and mechanical parameters remain identical.

Q: Is the tighter tolerance of the 1812HC392KAT1A beneficial?

A: Tighter tolerance (±10%) provides improved capacitance accuracy compared to ±20%, which may benefit applications requiring precise capacitive values. This represents an enhancement over the original specification.

Q: Are there any compliance or certification differences?

A: Both parts maintain identical compliance status: ROHS3 compliant, REACH unaffected, MSL 1 (unlimited moisture sensitivity), and ECCN EAR99 classification. No compliance differences exist between the two parts.

Q: What packaging formats are available?

A: The 1812GC392MAT1A is available in standard packaging, while the 1812HC392KAT1A is available in Tape & Reel (TR) format. Both formats are compatible with standard surface mount assembly processes.