1812GC331KAT3A Equivalent & Substitute Parts

Part Overview

The 1812GC331KAT3A is a 330 pF ceramic capacitor manufactured by KYOCERA AVX with a rated voltage of 2000V (2kV) and X7R temperature coefficient. This surface mount multilayer ceramic capacitor (MLCC) in 1812 (4532 Metric) package is designed for general purpose high voltage applications. The part is currently active with 1135 units in stock and maintains ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent capacitance and tolerance values are required but higher voltage ratings or improved temperature stability characteristics are needed for specific application requirements.

Substiute Parts

1812GC331KAT3A\SB

KYOCERA AVXIn Stock: 11831812GC331KAT3A\SB Datasheet

Current PartRFQ

1812HA331KAT1A

KYOCERA AVXIn Stock: 71791812HA331KAT1A Datasheet

UpgradeRFQ

C4532C0G3F331K250KA

TDK CorporationIn Stock: 17788C4532C0G3F331K250KA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1812GC331KAT3A are qualified based on the following electrical and mechanical parameters:

Mandatory Matching Parameters:

• Capacitance: 330 pF
• Tolerance: ±10%
• Package / Case: 1812 (4532 Metric)
• Mounting Type: Surface Mount, MLCC
• Operating Temperature Range: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Voltage - Rated: Equal to or greater than 2000V (2kV)
• Temperature Coefficient: X7R or C0G/NP0 (both acceptable for general purpose applications)

The identified substitute parts maintain identical capacitance, tolerance, package dimensions, and compliance certifications while offering enhanced voltage ratings (3000V) and alternative temperature coefficient options (C0G/NP0).

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain active product status and full compliance with ROHS3 and REACH requirements. The 1812HA331KAT1A from KYOCERA AVX provides a direct manufacturer upgrade path with identical length and width dimensions (4.60mm x 3.20mm) while increasing voltage rating to 3000V and shifting temperature coefficient to C0G/NP0. The C4532C0G3F331K250KA from TDK Corporation offers equivalent electrical specifications with a 3000V rating and C0G temperature coefficient, with minor dimensional variations in length (4.50mm) and increased thickness (2.80mm). Selection between substitutes depends on PCB layout constraints and preferred manufacturer sourcing.

Frequently Asked Questions (FAQ)

Q: Can the 1812GC331KAT3A be directly replaced with either substitute part?

A: Yes. Both substitute parts maintain the same capacitance (330 pF), tolerance (±10%), package type (1812/4532 Metric), and operating temperature range (-55°C ~ 125°C). The substitutes provide equal or higher voltage ratings and are electrically compatible for general purpose applications.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients?

A: X7R provides ±15% capacitance change across the operating temperature range. C0G/NP0 provides ±30 ppm/°C with superior temperature stability. Both are acceptable for general purpose applications; selection depends on circuit requirements for capacitance stability over temperature.

Q: Are there physical size differences between the main part and substitutes?

A: The 1812HA331KAT1A maintains identical length and width (4.60mm x 3.20mm) but increases thickness to 2.20mm. The C4532C0G3F331K250KA has slightly reduced length (4.50mm) and increased thickness (2.80mm). Verify PCB layout clearances before selection.

Q: Do all parts have the same moisture sensitivity rating?

A: Yes. All three parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: What is the voltage rating advantage of the substitute parts?

A: The substitute parts are rated for 3000V (3kV) compared to the main part's 2000V (2kV) rating. This provides 50% higher voltage margin for applications requiring enhanced overvoltage protection or operation in high voltage environments.