1812GA100JAT1A Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812GA100JAT1A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 10 pF, rated for 2000V (2kV), and featuring C0G/NP0 temperature coefficient characteristics. This surface-mount multilayer ceramic capacitor (MLCC) in 1812 (4532 Metric) package is designed for general-purpose applications requiring stable capacitance across temperature ranges from -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance can be maintained within the same package footprint and mechanical constraints, or when upgraded voltage ratings provide enhanced reliability margins for the same application circuit.

Substiute Parts

1812GA100JAT1A\SB

KYOCERA AVXIn Stock: 7941812GA100JAT1A\SB Datasheet

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1812HA100JAT1A

KYOCERA AVXIn Stock: 11511812HA100JAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 1812GA100JAT1A is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Capacitance value: 10 pF (exact match required)
• Tolerance: ±5% (exact match required)
• Temperature coefficient: C0G/NP0 (exact match required)
• Package / Case: 1812 (4532 Metric) (exact match required)
• Mounting type: Surface Mount, MLCC (exact match required)
• Operating temperature range: -55°C to 125°C (exact match or better required)
• Physical dimensions: 0.181" L × 0.126" W, thickness 0.057" max (exact match required)

Allowable Variation:

• Voltage rating: Equal to or greater than 2000V (2kV) is acceptable
• Manufacturer: Different manufacturers permitted if all electrical and mechanical parameters match
• Packaging format: Tape & Reel (TR) or alternative packaging acceptable if component specifications remain identical
• RoHS and compliance certifications: Must maintain ROHS3 compliance or equivalent

The identified substitute part 1812HA100JAT1A meets all primary criteria with an upgraded voltage rating of 3000V (3kV), providing enhanced voltage margin while maintaining identical capacitance, tolerance, temperature coefficient, package dimensions, and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The 1812HA100JAT1A serves as a direct substitute for the 1812GA100JAT1A based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical capacitance (10 pF), tolerance (±5%), and temperature coefficient (C0G/NP0) specifications. The substitute part's elevated voltage rating of 3000V (3kV) compared to the original 2000V (2kV) provides increased voltage margin without affecting circuit performance in applications designed for the lower voltage specification.

Mechanical Compatibility: Package dimensions, mounting type, and physical footprint are identical between both parts. The 1812 (4532 Metric) surface-mount package ensures direct PCB layout compatibility with no redesign required.

Compliance and Production Status: Both parts are ROHS3 compliant, carry active product status, and maintain unlimited moisture sensitivity rating (MSL 1). Both are manufactured by KYOCERA AVX, ensuring consistent quality and reliability standards.

Substitution Validity: The 1812HA100JAT1A is a valid substitute where the original 1812GA100JAT1A is specified, provided the circuit design accommodates the higher voltage rating. No circuit modifications, thermal management adjustments, or layout changes are necessary.

Frequently Asked Questions (FAQ)

Q: Can the 1812HA100JAT1A be used as a direct replacement for the 1812GA100JAT1A in existing designs?

A: Yes. The substitute part maintains identical capacitance, tolerance, temperature coefficient, package dimensions, and operating temperature range. The higher voltage rating (3kV vs. 2kV) is compatible with circuits designed for the original part, as it provides additional voltage margin without affecting electrical performance.

Q: What is the significance of the voltage rating difference between these parts?

A: The 1812HA100JAT1A is rated for 3000V (3kV) compared to the 1812GA100JAT1A's 2000V (2kV) rating. This upgrade provides enhanced reliability and safety margin in high-voltage applications. Both parts are suitable for circuits operating at or below 2000V.

Q: Are the physical dimensions identical between the main part and substitute?

A: Yes. Both parts use the 1812 (4532 Metric) package with identical dimensions of 0.181" L × 0.126" W (4.60mm × 3.20mm) and maximum thickness of 0.057" (1.45mm). No PCB layout modifications are required.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 1812GA100JAT1A and 1812HA100JAT1A are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification. Both maintain MSL 1 (unlimited) moisture sensitivity rating.

Q: What packaging formats are available for the substitute part?

A: The 1812HA100JAT1A is available in Tape & Reel (TR) packaging format. Verify packaging requirements for your procurement and assembly processes.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C with C0G/NP0 temperature coefficient, ensuring stable capacitance performance across the full operating range.