1808SC221MAT1A Equivalent & Substitute Parts

Part Overview

The 1808SC221MAT1A is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 220 pF, rated voltage of 1500V (1.5kV), and X7R temperature coefficient. This surface-mount multilayer ceramic capacitor (MLCC) in 1808 (4520 Metric) package is designed for general-purpose applications requiring high-voltage performance. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts may be required due to inventory availability, design optimization, or performance specification changes.

Substiute Parts

1808SC221MAT1A

KYOCERA AVXIn Stock: 7301808SC221MAT1A Datasheet

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1808GA221JAT1A

KYOCERA AVXIn Stock: 48861808GA221JAT1A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1808SC221MAT1A is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Capacitance value: 220 pF (exact match required)
• Package / Case: 1808 (4520 Metric) (exact match required)
• Mounting Type: Surface Mount, MLCC (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)

Allowable Variation Parameters:

• Voltage - Rated: Equal to or greater than 1500V
• Tolerance: Equal to or tighter than ±20%
• Temperature Coefficient: X7R or equivalent stability class
• Thickness: Physical constraint; must not exceed PCB assembly clearance requirements
• RoHS Status: ROHS3 Compliant (regulatory requirement)

The substitute part 1808GA221JAT1A meets all mandatory compatibility parameters and provides enhanced electrical performance through higher rated voltage (2000V vs. 1500V), tighter tolerance (±5% vs. ±20%), and superior temperature stability (C0G/NP0 vs. X7R).

Parameter Comparison

Engineering Selection Recommendations

Both the 1808SC221MAT1A and 1808GA221JAT1A are active production parts with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory compliance and manufacturing reliability.

The 1808GA221JAT1A substitute provides enhanced electrical performance characteristics: 33% higher voltage rating (2000V vs. 1500V) and 4× tighter capacitance tolerance (±5% vs. ±20%). The C0G/NP0 temperature coefficient offers superior temperature stability compared to X7R. These improvements make the substitute suitable for applications requiring higher voltage margins or tighter capacitance specifications.

Physical compatibility requires verification: the substitute has a maximum thickness of 0.087" (2.20mm) compared to the main part's 0.071" (1.80mm). PCB assembly clearance must accommodate this 0.016" (0.40mm) thickness increase.

Frequently Asked Questions (FAQ)

Q: Can 1808GA221JAT1A directly replace 1808SC221MAT1A in all applications?

A: Direct replacement is possible for applications where the circuit design does not depend on the specific X7R temperature coefficient characteristics or where the 0.016" (0.40mm) additional thickness does not create PCB assembly conflicts. The higher voltage rating and tighter tolerance of the substitute are backward-compatible with designs specified for the main part.

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

A: X7R provides ±15% capacitance change over the -55°C to 125°C operating range. C0G/NP0 provides superior stability with minimal capacitance change across temperature. The substitute's C0G/NP0 coefficient is suitable for applications requiring stable capacitance performance across temperature extremes.

Q: Are there physical installation constraints when using the substitute?

A: Yes. The substitute part has a maximum thickness of 0.087" (2.20mm) versus 0.071" (1.80mm) for the main part. Verify that PCB assembly equipment and design clearances accommodate this 0.40mm thickness increase before implementation.

Q: Do both parts have identical moisture sensitivity requirements?

A: Yes. Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity precautions are required during storage, handling, or assembly.

Q: Are both parts RoHS compliant?

A: Yes. Both 1808SC221MAT1A and 1808GA221JAT1A are ROHS3 compliant, meeting current environmental and regulatory requirements.