Ceramic Capacitors

Image Part Number Description / PDF Quantity Rfq
SMC1206J182

SMC1206J182

NTE Electronics, Inc.

CAP CER 1800PF 50V X7R 1206

2683

90182

90182

NTE Electronics, Inc.

CAP CER 820PF 1KV Y5P RADIAL

465

SMC0805K183

SMC0805K183

NTE Electronics, Inc.

CAP CER 0.018UF 50V X7R 0805

2616

SMC0805K102

SMC0805K102

NTE Electronics, Inc.

CAP CER 1000PF 50V C0G/NP0 0805

2756

SMC1206J561

SMC1206J561

NTE Electronics, Inc.

CAP CER 560PF 50V C0G/NP0 1206

1303

SMC0805J120

SMC0805J120

NTE Electronics, Inc.

CAP CER 12PF 50V C0G/NP0 0805

1541

SMC0805K223

SMC0805K223

NTE Electronics, Inc.

CAP CER 0.022UF 50V X7R 0805

5585

89268

89268

NTE Electronics, Inc.

CAP CER 6800PF 50V YSP RADIAL

17

CML101J100

CML101J100

NTE Electronics, Inc.

CAP CER 100PF 100V C0G/NP0 RAD

1296

9008D0

9008D0

NTE Electronics, Inc.

CAP CER 8PF 1KV SL RADIAL

314

SMC0805J271

SMC0805J271

NTE Electronics, Inc.

CAP CER 270PF 50V C0G/NP0 0805

244

SMC1206Z104

SMC1206Z104

NTE Electronics, Inc.

CAP CER 0.1UF 50V X7R 1206

3017

CML332J100

CML332J100

NTE Electronics, Inc.

CAP CER 3300PF 100V C0G/NP0 RAD

681

89315

89315

NTE Electronics, Inc.

CAP CER 0.015UF 50V Y5R RADIAL

481

CML105M50

CML105M50

NTE Electronics, Inc.

CAP CER 1UF 50V Z5U RADIAL

1311

SMC0805J181

SMC0805J181

NTE Electronics, Inc.

CAP CER 180PF 50V C0G/NP0 0805

645

CML473J100

CML473J100

NTE Electronics, Inc.

CAP CER 0.047UF 100V C0G/NP0 RAD

307

SMC0805J220

SMC0805J220

NTE Electronics, Inc.

CAP CER 22PF 50V C0G/NP0 0805

867

9002D7

9002D7

NTE Electronics, Inc.

CAP CER 2.7PF 1KV SL RADIAL

508

CML474K100

CML474K100

NTE Electronics, Inc.

CAP CER 0.47UF 100V X7R RADIAL

344

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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