Ceramic Capacitors

Part Number	Description / PDF	Quantity
C324C569BAG5TA7301 KEMET	CAP CER 5.6PF 250V C0G/NP0 RAD	0
C987U103MZVDBAWL30 KEMET	CAP CER 10000PF 2500V Y5V RAD	0
C0805C139C8HAC7800 KEMET	CAP CER 0805 1.3PF 10V ULTRA STA	0
C333C153FAG5TA7301 KEMET	CAP CER 0.015UF 250V C0G/NP0 RAD	0
C1206C473M2REC7210 KEMET	CAP CER 1206 47NF 200V X7R 20%	0
C323C150F3G5TA KEMET	CAP CER 15PF 25V C0G/NP0 RADIAL	0
C317C681JAG5TA KEMET	CAP CER 680PF 250V C0G/NP0 RAD	0
C322C332K1R5TA KEMET	CAP CER 3300PF 10% 100V X7R RAD	2012
C0805C474M4REC7210 KEMET	CAP CER 0805 470NF 16V X7R 20%	0
C0402C152G8JACAUTO KEMET	CAP CER 1500PF 10V U2J 0402	0
C321C471J3G5TA KEMET	CAP CER RAD 470PF 25V C0G 5%	0
C1206C360F3HAC7800 KEMET	CAP CER 1206 36PF 25V ULTRA STAB	0
C0805C821G3HAC7800 KEMET	CAP CER 0805 820PF 25V ULTRA STA	0
C326C393K2G5TA KEMET	CAP CER RAD 39NF 200V C0G 10%	0
C947U472MYVDBA7317 KEMET	CAP CER 4700PF 400VAC Y5V RADIAL	6780
C420C202J3G5TA KEMET	CAP CER 2000PF 25V C0G/NP0 AXIAL	0
C0603X910G8HACAUTO KEMET	CAP CER 0603 91PF 10V ULTRA STAB	0
C1206X682KMREC7800 KEMET	CAP CER 1206 6.8NF 63V X7R 10%	0
C321C471KAG5TA KEMET	CAP CER RAD 470PF 250V C0G 10%	0
C0603C430J1HACAUTO KEMET	CAP CER 0603 43PF 100V ULTRA STA	0

Ceramic Capacitors

1. Overview

Ceramic capacitors are fixed-value capacitors with ceramic materials as dielectrics. They consist of alternating layers of ceramic and metal electrodes, offering compact size, low cost, and stable performance. As core passive components, they are critical in modern electronics for functions like noise filtering, signal coupling, and power supply stabilization. Their importance spans from consumer electronics to aerospace systems due to their reliability and wide operating frequency range.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Class I Ceramic Capacitors	High stability, low losses, linear temperature coefficient ( 30ppm/ C)	RF circuits, precision oscillators
Class II Ceramic Capacitors	Higher capacitance density, nonlinear temperature response ( 15%-22%)	Power decoupling, DC link circuits
Multi-Layer Ceramic Capacitors (MLCCs)	Stacked electrode structure, high capacitance-to-volume ratio	Mobile devices, automotive electronics
High Voltage Ceramic Capacitors	Rated voltage >1kV, thick dielectric layers	Power supplies, medical imaging equipment

3. Structure and Composition

Ceramic capacitors feature a layered structure with three primary components:

Ceramic Dielectric: Barium titanate (BaTiO3) or calcium zirconate formulations for Class II/III types
Electrodes: Nickel, copper, or silver-palladium alloys in alternating layers
Terminations: Solderable outer layers (e.g., tin/nickel plating) for PCB mounting

MLCCs are manufactured through tape casting, screen printing, and sintering processes to create monolithic structures with up to 1000+ electrode layers.

4. Key Technical Specifications

Parameter	Significance	Typical Range
Capacitance (C)	Determines charge storage capability	0.5pF - 100 F
Rated Voltage (VR)	Maximum DC working voltage	2.5V - 10kV
Capacitance Tolerance	Manufacturing accuracy	1% (Class I) to 22% (Class III)
Temperature Coefficient	Stability across temperature	-55 C to +125 C operating range
ESR (Equivalent Series Resistance)	Impacts high-frequency performance	1m - 100m

5. Application Fields

Ceramic capacitors are deployed in:

Consumer Electronics: Smartphones (decoupling), laptops (power management)
Automotive Systems: ECU units (noise suppression), EV charging circuits
Industrial Equipment: Motor drives (snubber circuits), PLC controllers
Telecommunications: 5G base stations (RF filtering), optical transceivers
Medical Devices: MRI scanners (high-voltage isolation), pacemakers

6. Leading Manufacturers and Products

Manufacturer	Key Products	Technical Highlights
Murata Manufacturing	GRM series MLCCs	Sub-millimeter 0201 size with 10 F capacity
TDK Corporation	C4532 series	High-reliability automotive grade components
KEMET Electronics	C1210 series	Space-grade tantalum ceramic hybrid capacitors
AVX Corporation	943D series	High-voltage 2000V surface-mount devices
Vishay Intertechnology	VCB series	Anti-sulfurated terminations for harsh environments

7. Selection Guidelines

Key considerations for capacitor selection:

Operating voltage margin (>20% above rated voltage)
Temperature stability requirements (Class I for precision circuits)
Size constraints (MLCCs preferred for miniaturization)
Environmental factors (humidity, vibration, thermal cycling)
Cost optimization (Class II for cost-sensitive applications)

Example: For a 5G RF front-end module, select Class I capacitors with 0.1pF tolerance and 50 impedance matching characteristics.

8. Industry Trends

Emerging developments include:

Miniaturization: Development of 01005-inch MLCCs for wearable devices
High Capacitance Density: 100 F+ in 1210 package through nano-dielectric engineering
Advanced Materials: Lead-free ceramics meeting RoHS standards
High-Temperature Performance: Capacitors operating reliably at 200 C+
Integrated Solutions: Embedded capacitor substrates for SiP (System-in-Package) applications