1808SC221MAT1C Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1808SC221MAT1C 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) is designed for general-purpose applications requiring stable performance across the operating temperature range of -55°C to 125°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when design requirements allow for upgraded electrical specifications while maintaining mechanical compatibility and package form factor.

Substiute Parts

1808SC221MAT1C

KYOCERA AVXIn Stock: 11481808SC221MAT1C Datasheet

Current PartRFQ

1808GA221JAT1A

KYOCERA AVXIn Stock: 48861808GA221JAT1A Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1808SC221MAT1C is permissible when the following conditions are met:

• Capacitance value remains 220 pF
• Package form factor remains 1808 (4520 Metric) for mechanical compatibility
• Rated voltage is equal to or greater than 1500V
• Mounting type remains Surface Mount, MLCC
• Operating temperature range encompasses -55°C ~ 125°C
• RoHS and REACH compliance status is maintained

The substitute part 1808GA221JAT1A meets these criteria with an upgraded rated voltage of 2000V (2kV) and improved tolerance specification of ±5% (versus ±20% for the original part). The temperature coefficient differs (C0G/NP0 versus X7R), which represents a different dielectric material with superior stability characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 1808GA221JAT1A substitute part is suitable for applications where the design specifications permit a higher rated voltage (2000V versus 1500V) and tighter capacitance tolerance (±5% versus ±20%). Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level, ensuring equivalent environmental and regulatory compliance.

The primary design consideration is the difference in temperature coefficient: X7R (main part) provides ±15% capacitance change over temperature, while C0G/NP0 (substitute) provides ±30 ppm/°C stability. Selection between these parts depends on the application's temperature stability requirements.

The substitute part exhibits a maximum thickness of 0.087" (2.20mm) compared to 0.071" (1.80mm) for the original part. PCB layout and component clearance must accommodate this dimensional difference.

Frequently Asked Questions (FAQ)

Q: Can the 1808GA221JAT1A directly replace the 1808SC221MAT1C in all applications?

A: Direct replacement is mechanically feasible due to identical package dimensions (1808/4520 Metric) and footprint. However, the increased thickness (0.087" versus 0.071") must be verified against PCB clearance requirements. The upgraded voltage rating (2000V versus 1500V) is backward-compatible. The different temperature coefficient (C0G/NP0 versus X7R) may affect circuit performance in temperature-sensitive applications.

Q: What is the significance of the temperature coefficient difference?

A: X7R provides ±15% capacitance variation across the -55°C to 125°C operating range. C0G/NP0 provides ±30 ppm/°C, resulting in superior stability. Applications requiring precise capacitance values across temperature extremes benefit from the C0G/NP0 specification.

Q: Are there any compliance or certification differences?

A: Both parts maintain ROHS3 compliance, REACH Unaffected status, and unlimited moisture sensitivity level (MSL 1). No compliance differences exist between the two parts.

Q: What is the impact of the tolerance difference (±20% versus ±5%)?

A: The substitute part's ±5% tolerance provides tighter capacitance control compared to the original part's ±20% tolerance. This is advantageous for applications requiring precise capacitance values but does not prevent substitution in applications tolerant of wider variation.

Q: How does the voltage rating upgrade affect circuit design?

A: The 2000V rating of the substitute part provides additional safety margin in high-voltage applications. This upgrade does not require circuit redesign and is fully backward-compatible with designs specified for 1500V operation.