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Showing Results For: Ceramic Capacitors

Ceramic Capacitors

Ceramic capacitors are among the most common types of capacitors that are found being used in various electrical instruments because of their reliability and cost less to manufacture. These capacitors are known to have porcelain discs and are said to exist in a non-polarised form used in various industries. These capacitors use ceramic as their dielectric, which has poor conductivity and efficiently supports the electrostatic fields. This capacitor consists of many alternating layers of ceramic material and a metal layer utilized as an electrolyte. The ceramic material composition in these capacitors indicates its electrical behaviour and its applications. In simple words, a ceramic capacitor is known as a fixed capacitor in which the ceramic is used as a dielectric material.

Types of Ceramic Capacitor

Two common types of capacitors are known:

Ceramic Disc Capacitors

Ceramic disc capacitors are used for safety purposes, primarily in electromagnetic interference suppression capacitors. These capacitors are made by coating the ceramic discs with silver contacts on each side. They hold a capacitance value ranging from about10pF to 100μF and have various voltage ratings between 16 V to 15 kV.

Multi-Layered Ceramic Capacitors

Ceramic capacitors with multiple layers are widely used in various applications and industries. These capacitors are available in different sizes and shapes and are mainly used for RFI/EMI suppression systems. Multi-layered capacitors are also used as feed-through capacitors, and large dimension systems are used as power capacitors in transformers. These capacitors are manufactured with a mix of paraelectric and ferroelectric materials. When the layering process has been completed, the device's temperature is increased, and the temperature is sintered, which produces a ceramic material with desired properties. The MLCCs include more than 500 layers, and the minimum thickness is 0.5 microns.

Characteristics of Ceramic Capacitors

Ceramic capacitors have the following characteristics or properties which make them efficient.

Accurate tolerances and Precision

ceramic capacitors are commonly used with devices that need high stability and low losses. These capacitors are known to provide accurate results, and their capacitance values remain with the applied voltage, temperature, and frequency.

High Power and High Voltage

ceramic capacitors are manufactured to survive in high voltages, and they are known as power capacitors. These capacitors are much larger than the printed circuit boards. They also consist of terminals that provide safer connections to the high voltage supply. The power ceramic capacitors can tolerate voltages ranging from 2kV- to 100 kV.

Benefits of Small Size

The small size of these ceramic capacitors has its advantages in the case of packaging. For example, the measure of a "0402" multi-layered ceramic capacitor would be about 0.4 mm x 0.2 mm.

Applications of Ceramic Capacitors

Applications of ceramic capacitors are:

  • Ceramic capacitors are used in transmitter stations.
  • They are also utilized in induction furnaces.
  • These capacitors are commonly used in high-voltage laser power supplies.
  • Ceramic capacitors have been widely used on printed circuit boards.
  • Such capacitors are used in power circuit breakers.
  • They are used in high-density applications as well.
  • Ceramic capacitors can also be used as general-purpose capacitors and across the brushes of the Direct Current motors to decrease the radiofrequency noise as much as possible.

With such a wide range of applications, less cost of manufacturing, and superior properties, we can say that these capacitors are highly effective and efficient.


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Manufacturer Part No
Name
Availability
Price
Rating
KYOCERA AVX
KGM31AR71H475KU, KYOCERA AVX
70311 In Stock
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1 +
£ 0.363
10 +
£ 0.237
50 +
£ 0.174
KYOCERA AVX
87043-49 RP, KYOCERA AVX
19 In Stock
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1 +
£ 9.71
10 +
£ 8.99
100 +
£ 7.00
KYOCERA AVX
KGM31BCG1H222KT, KYOCERA AVX
4537 In Stock
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1 +
£ 0.231
10 +
£ 0.152
50 +
£ 0.107
KYOCERA AVX
KGM15AR72A123KT, KYOCERA AVX
22825 In Stock
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1 +
£ 0.297
10 +
£ 0.194
50 +
£ 0.143
KYOCERA AVX
KGM31HS72A475MU, KYOCERA AVX
76 In Stock
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1 +
£ 2.97
10 +
£ 2.29
50 +
£ 2.10
KYOCERA AVX
KGM15AR70J224JT, KYOCERA AVX
74 In Stock
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1 +
£ 0.44
10 +
£ 0.297
50 +
£ 0.236
100E101GTN3600XJ24, KYOCERA AVX
1 In Stock
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1 +
£ 35.31
24 +
£ 32.37
72 +
£ 29.43
American Technical Ceramics
100E471JW2500XJ24, American Technical Ceramics
87 In Stock
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1 +
£ 39.30
24 +
£ 36.04
48 +
£ 32.76
Samwha Capacitor Group
CS3216X7R106K250NRI, Samwha Capacitor Group
98098 In Stock
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5000 +
£ 0.026
10000 +
£ 0.025
20000 +
£ 0.025
CDR31BP100BJUS, KEMET
187 In Stock
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1 +
£ 1.57
10 +
£ 1.21
50 +
£ 1.11
CDR35BX154BKUS, KEMET
451 In Stock
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1 +
£ 3.64
10 +
£ 3.12
50 +
£ 2.84
Samwha Capacitor Group
CQ2012X7R106K100NRE, Samwha Capacitor Group
21 In Stock
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KYOCERA AVX
KGM05AR71H333KH, KYOCERA AVX
16973 In Stock
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1 +
£ 0.319
10 +
£ 0.211
50 +
£ 0.155
HA221KP39DHCWAKPLP, KEMET
4024 In Stock
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2000 +
£ 0.394
HC101KP39DCACAKPLP, KEMET
20028 In Stock
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10000 +
£ 1.13
C0402C100F5GAC3121, KEMET
20039 In Stock
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10000 +
£ 0.094
C0402C100J5GAC3020, KEMET
40041 In Stock
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20000 +
£ 0.012
C0402C100J5GAC31217665, KEMET
40044 In Stock
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20000 +
£ 0.01
C0402C100K5RAL, KEMET
3385 In Stock
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1667 +
£ 0.119
C0402C101J5GAC3121, KEMET
40069 In Stock
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20000 +
£ 0.01
C0402C101J5GAC9109, KEMET
80070 In Stock
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40000 +
£ 0.004
C0402C101J5RAC3112, KEMET
100071 In Stock
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50000 +
£ 0.009
C0402C101K5GAC3121, KEMET
40074 In Stock
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20000 +
£ 0.009
C0402C102J5RAC31127665, KEMET
100093 In Stock
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50000 +
£ 0.009
C0402C102J5RAC3121, KEMET
40095 In Stock
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20000 +
£ 0.01
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New Items
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SR151E103MAATR2, AVX Corporation

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New items
SA052A200JAA, AVX Corporation
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LD03ZC124KAB2A, AVX Corporation
New items
06031C621MAT4A, AVX Corporation
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