1812HC100JAT1A Equivalent & Substitute Parts

Part Overview

The 1812HC100JAT1A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX, rated at 10 pF with 3000V (3kV) operating voltage and X7R temperature coefficient. This component is designed for general-purpose applications requiring stable capacitance across a wide temperature range (-55°C to 125°C). The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and voltage class.

Substiute Parts

1812HC100JAT1A\SB

KYOCERA AVXIn Stock: 10131812HC100JAT1A\SB Datasheet

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1812HA100JAT1A

KYOCERA AVXIn Stock: 11511812HA100JAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812HC100JAT1A is determined by the following critical parameters:

• Capacitance Value: Must be 10 pF ±5%
• Voltage Rating: Must be rated for 3000V (3kV) minimum
• Package Footprint: Must use 1812 (4532 Metric) case size
• Mounting Technology: Must be Surface Mount MLCC
• Temperature Coefficient: X7R or C0G/NP0 (both provide stable performance across the operating temperature range)
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The identified substitute part 1812HA100JAT1A meets all substitution criteria. The primary difference is the temperature coefficient classification (C0G/NP0 versus X7R), which represents an upgrade in temperature stability characteristics while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812HC100JAT1A and 1812HA100JAT1A are active production components from KYOCERA AVX with full ROHS3 compliance and MSL 1 rating. Selection between these parts should be based on application-specific requirements:

The 1812HC100JAT1A with X7R temperature coefficient provides ±15% capacitance variation across the full operating temperature range, suitable for general-purpose applications where moderate temperature stability is acceptable.

The 1812HA100JAT1A with C0G/NP0 temperature coefficient provides superior temperature stability with minimal capacitance drift, recommended for precision circuits requiring tighter capacitance tolerance across temperature extremes. This substitute also features reduced thickness (0.057" versus 0.071"), which may provide design flexibility in space-constrained applications.

Both parts maintain identical electrical ratings (10 pF, ±5%, 3000V) and mechanical compatibility within the 1812 package footprint, ensuring direct substitution capability in PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can 1812HA100JAT1A directly replace 1812HC100JAT1A in existing designs?

A: Yes. Both parts share identical capacitance (10 pF ±5%), voltage rating (3000V), package footprint (1812/4532 Metric), and mounting technology (Surface Mount MLCC). The C0G/NP0 temperature coefficient of the substitute provides equal or superior performance compared to X7R across the -55°C to 125°C operating range.

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

A: X7R provides ±15% capacitance variation across the full temperature range. C0G/NP0 provides superior stability with minimal capacitance drift across temperature. For 10 pF applications, C0G/NP0 is generally preferred in precision circuits.

Q: Are there physical size differences between these parts?

A: Both parts use the 1812 (4532 Metric) package with identical length (0.181" / 4.60mm) and width (0.126" / 3.20mm). The substitute 1812HA100JAT1A has reduced thickness (0.057" / 1.45mm) compared to the main part (0.071" / 1.80mm), which may provide additional PCB design flexibility.

Q: Do both parts meet current compliance requirements?

A: Yes. Both 1812HC100JAT1A and 1812HA100JAT1A are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity) rating, meeting current environmental and regulatory standards.

Q: What packaging options are available?

A: The main part 1812HC100JAT1A is available in standard packaging. The substitute 1812HA100JAT1A is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly operations.