Ceramic Capacitors

Image	Part Number	Description / PDF	Quantity	Rfq
	ECJ-2VB1H393K Panasonic	CAP CER 0.039UF 50V X7R 0805	0
	ECJ-1VF1C474Z Panasonic	CAP CER 0.47UF 16V Y5V 0603	0
	ECK-ATS221MB Panasonic	CAP CER 220PF 440VAC Y5P RADIAL	0
	ECJ-2FB1E154K Panasonic	CAP CER 0.15UF 25V X7R 0805	0
	ECJ-1VB0J105K Panasonic	CAP CER 1UF 6.3V X5R 0603	0
	ECK-ANA221MB Panasonic	CAP CER 220PF 440VAC Y5P RADIAL	0
	ECJ-4YF1H106Z Panasonic	CAP CER 10UF 50V Y5V 1210	0
	ECC-A3A680JGE Panasonic	CAP CER 68PF 1KV SL/GP RADIAL	0
	ECJ-2FB0J475K Panasonic	CAP CER 4.7UF 6.3V X5R 0805	0
	ECJ-2VF1C334Z Panasonic	CAP CER 0.33UF 16V Y5V 0805	0
	ECJ-4YB1E106M Panasonic	CAP CER 10UF 25V X5R 1210	0
	ECJ-2YF1A475Z Panasonic	CAP CER 4.7UF 10V Y5V 0805	0
	ECJ-2YC2D680J Panasonic	CAP CER 68PF 200V C0G/NP0 0805	0
	ECK-ANA101MB Panasonic	CAP CER 100PF 440VAC Y5P RADIAL	0
	ECJ-2VF1C104Z Panasonic	CAP CER 0.1UF 16V Y5V 0805	0
	ECJ-2VC1H020C Panasonic	CAP CER 2PF 50V C0G/NP0 0805	0
	ECJ-0EB1C123K Panasonic	CAP CER 0.012UF 16V X7R 0402	0
	ECK-D3D121KBP Panasonic	CAP CER 120PF 2KV Y5P RADIAL	0
	ECK-D3D472KBP Panasonic	CAP CER 4700PF 2KV Y5P RADIAL	0
	ECJ-2VC2A470J Panasonic	CAP CER 47PF 100V C0G/NP0 0805	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