Ceramic Capacitors

Image Part Number Description / PDF Quantity Rfq
SMC1206K182

SMC1206K182

NTE Electronics, Inc.

CAP CER 1800PF 50V X7R 1206

2888

SMC1206K102

SMC1206K102

NTE Electronics, Inc.

CAP CER 1000PF 50V C0G/NP0 1206

6180

SMC1206C6D8

SMC1206C6D8

NTE Electronics, Inc.

CAP CER 6.8PF 50V C0G/NP0 1206

1229

SMC0805K472

SMC0805K472

NTE Electronics, Inc.

CAP CER 4700PF 50V X7R 0805

3030

CML222J100

CML222J100

NTE Electronics, Inc.

CAP CER 2200PF 100V C0G/NP0 RAD

767

90268

90268

NTE Electronics, Inc.

CAP CER 6800PF 1KV Z5V RADIAL

516

SMC1206K103

SMC1206K103

NTE Electronics, Inc.

CAP CER 10000PF 50V X7R 1206

2822

SMC1206J150

SMC1206J150

NTE Electronics, Inc.

CAP CER 15PF 50V C0G/NP0 1206

1120

SMC1206J151

SMC1206J151

NTE Electronics, Inc.

CAP CER 150PF 50V C0G/NP0 1206

982

9002D0

9002D0

NTE Electronics, Inc.

CAP CER 2PF 1KV SL RADIAL

1177

CML220J100

CML220J100

NTE Electronics, Inc.

CAP CER 22PF 100V C0G/NP0 RADIAL

0

SMC1206J221

SMC1206J221

NTE Electronics, Inc.

CAP CER 220PF 50V C0G/NP0 1206

6830

SMC1206J390

SMC1206J390

NTE Electronics, Inc.

CAP CER 39PF 50V C0G/NP0 1206

1123

SMC0805J680

SMC0805J680

NTE Electronics, Inc.

CAP CER 68PF 50V C0G/NP0 0805

602

90168

90168

NTE Electronics, Inc.

CAP CER 680PF 1KV Y5P RADIAL

1874

SMC1206J122

SMC1206J122

NTE Electronics, Inc.

CAP CER 1200PF 50V C0G/NP0 1206

3130

SMC0805C1D8

SMC0805C1D8

NTE Electronics, Inc.

CAP CER 1.8PF 50V C0G/NP0 0805

2340

SMC1206Z334

SMC1206Z334

NTE Electronics, Inc.

CAP CER 0.33UF 50V Y5V 1206

2628

90215

90215

NTE Electronics, Inc.

CAP CER 1500PF 1KV Z5V RADIAL

774

SMC0805J100

SMC0805J100

NTE Electronics, Inc.

CAP CER 10PF 50V C0G/NP0 0805

3907

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
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