1812SA221MAT1A\SB Ceramic Capacitor - Equivalent & Substitute Parts

Part Overview

The 1812SA221MAT1A\SB is a high-voltage ceramic capacitor manufactured by KYOCERA AVX with a capacitance of 220 pF, rated voltage of 1500V (1.5kV), and C0G/NP0 temperature coefficient. This component is actively produced and widely used in general-purpose high-voltage applications requiring stable capacitance across temperature ranges. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit higher voltage ratings or improved tolerance specifications.

Substiute Parts

1812SA221MAT1A\SB

KYOCERA AVXIn Stock: 8921812SA221MAT1A\SB Datasheet

Current PartRFQ

C4532C0G3F221K200KA

TDK CorporationIn Stock: 40033C4532C0G3F221K200KA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1812SA221MAT1A\SB is determined by the following critical parameters:

• Capacitance Value: Must be 220 pF (exact match required)
• Temperature Coefficient: Must be C0G or NP0 (equivalent specifications)
• Package / Case: Must be 1812 (4532 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount, MLCC
• Operating Temperature Range: Must support -55°C ~ 125°C minimum
• Voltage Rating: Must be equal to or greater than 1500V (1.5kV)
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The identified substitute part C4532C0G3F221K200KA from TDK Corporation meets all substitution criteria. This part maintains identical capacitance, temperature coefficient, package, and mounting specifications while providing an upgraded voltage rating of 3000V (3kV) and improved tolerance of ±10%.

Parameter Comparison

Engineering Selection Recommendations

Both the 1812SA221MAT1A\SB and C4532C0G3F221K200KA are actively produced components with full ROHS3 compliance and MSL 1 ratings, ensuring unrestricted moisture handling and environmental compliance for industrial applications.

The C4532C0G3F221K200KA substitute provides enhanced specifications through doubled voltage rating (3000V vs. 1500V) and tighter tolerance (±10% vs. ±20%), making it suitable for applications requiring higher voltage margins or improved capacitance stability. Both components maintain identical capacitance, temperature coefficient, and operating temperature range, ensuring functional equivalence in circuits designed for the original specification.

Physical dimensions show minor variations: the TDK part is slightly shorter in length (4.50mm vs. 4.60mm) but thicker (2.20mm vs. 1.45mm). PCB layout and clearance requirements must be evaluated for the specific application.

Frequently Asked Questions (FAQ)

Q: Can C4532C0G3F221K200KA be used as a direct replacement for 1812SA221MAT1A\SB?

A: Yes. Both parts share identical capacitance (220 pF), temperature coefficient (C0G/NP0), package (1812/4532 Metric), and operating temperature range (-55°C ~ 125°C). The substitute provides higher voltage rating and tighter tolerance, making it functionally compatible for applications designed around the original part's specifications.

Q: What are the key differences between these two parts?

A: The primary differences are voltage rating (1500V vs. 3000V), tolerance (±20% vs. ±10%), and physical thickness (1.45mm vs. 2.20mm). Capacitance value and temperature coefficient remain identical.

Q: Are there any compliance or certification concerns with substitution?

A: No. Both parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 rating. Substitution does not introduce compliance risks.

Q: Does the thickness difference affect PCB assembly?

A: The TDK part is 0.75mm thicker. PCB layout clearance and component placement must be evaluated to ensure no interference with adjacent components or assembly equipment.

Q: Which part should be selected for new designs?

A: Selection depends on circuit voltage requirements and tolerance specifications. For applications requiring 1500V operation, either part is suitable. For circuits with higher voltage margins or requiring tighter capacitance tolerance, the C4532C0G3F221K200KA is the preferred choice.