Ceramic Capacitors

Image	Part Number	Description / PDF	Quantity	Rfq
	C1206C103K2RECAUTO KEMET	CAP CER 1206 10NF 200V X7R 10%	0
	C0603C180J5HACAUTO KEMET	CAP CER 0603 18PF 50V ULTRA STAB	0
	C1206X151F8HACAUTO KEMET	CAP CER 1206 150PF 10V ULTRA STA	0
	C0805X152MMREC7800 KEMET	CAP CER 0805 1.5NF 63V X7R 20%	0
	C430C392F3G5TA7200 KEMET	CAP CER 3900PF 25V C0G/NP0 AXIAL	0
	C0805X221F4HACAUTO KEMET	CAP CER 0805 220PF 16V ULTRA STA	0
	C1206X123G4HAC7800 KEMET	CAP CER 1206 12NF 16V ULTRA STAB	0
	C1206C332MARECAUTO7210 KEMET	CAP CER 1206 3.3NF 250V X7R	0
	C323C820JAG5TA7301 KEMET	CAP CER 82PF 250V C0G/NP0 RADIAL	0
	C315C512F2G5TA7301 KEMET	CAP CER 5100PF 200V C0G/NP0 RAD	0
	C0603X439C1HACAUTO KEMET	CAP CER 0603 4.3PF 100V ULTRA ST	0
	C331C242GAG5TA KEMET	CAP CER RAD 2.4NF 250V C0G 2%	0
	C0805X155J4REC7800 KEMET	CAP CER 0805 1.5UF 16V X7R 5%	0
	C0402C240G3HACAUTO KEMET	CAP CER 0402 24PF 25V ULTRA STAB	0
	C317C681JAG5TA7301 KEMET	CAP CER 680PF 250V C0G/NP0 RAD	0
	C0805X330J1GAC7800 KEMET	33.0PF 100V	0
	C327C100FAG5TA KEMET	CAP CER 10PF 250V C0G/NP0 RADIAL	0
	C328C829CAG5TA7301 KEMET	CAP CER 8.2PF 250V C0G/NP0 RAD	0
	CKC33C123JJGAC7210 KEMET	KC-LINK 3640 12NF 1700VDC C0G	0
	C1812C270KGRACTU KEMET	CAP CER 27PF 2KV X7R 1812	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