The document discusses different types of capacitors and their common applications. It lists 11 types of ceramic capacitors including ceramic disc, COG, X7R and multilayer ceramic types. It also lists 7 types of film capacitors, 2 types of mica capacitors, 6 types of electrolytic capacitors, 3 types of tantalum capacitors, and 1 type of variable capacitor. Each capacitor type is accompanied by one or more typical applications and a link to further information. The document serves as a reference for selecting the appropriate capacitor type according to the intended application.

1. Electronusa Mechanical System [Research Center for Electronic and Mechanical]
The Capacitor Usage
Umar Sidik.BEng.MSc*
Director of Engineering
Electronusa Mechanical System
*umar.sidik@engineer.com
Ceramic
1. Ceramic disc Coupling circuit, bypass circuit, filter circuit
(metalized ceramic plate capacitor)
Source:
Ceramic
http://www.maplin.co.uk/metallised-ceramic-
platecapacitors-304
2. Decoupling disc Tuned circuit (RF), decoupled circuit (RF)
Source:
Ceramic
http://www.maplin.co.uk/decoupling-ceramic-disc-
capacitors-318
3. Ceramic COG Decoupling circuit, tuned circuit
Source:
Ceramic
http://media.digikey.com/photos/TDK
4. Ceramic X7R Decoupling circuit
Source:
Ceramic
http://media.digikey.com/Renders
5. Multilayer ceramic Switching noise, power converter (high frequency)
Source:
Ceramic
http://www.digikey.com/scripts/DkSearch/dksus.dll
6. Multilayer ceramic COG Switching noise, power converter (high frequency)
Source:
Ceramic
http://www.digikey.com/product-
detail/en/C0603C0G1H010C030BA
7. Multilayer ceramic NPO Switching noise, power converter (high frequency)
Source:
Ceramic
http://www.digikey.com/product-
detail/en/02013A0R5CAT2A/478-1000-2-ND/563110
8. Multilayer ceramic X5R Switching noise, power converter (high frequency)
Source:
Ceramic
http://www.digikey.com/product-
detail/en/0201ZD103KAT2A/478-1051-2-ND/563161
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2. Electronusa Mechanical System [Research Center for Electronic and Mechanical]
9. Multilayer ceramic X7R Switching noise, power converter (high frequency)
Ceramic Source:
http://www.digikey.com/product-
detail/en/0201YC101KAT2A/478-1027-2-ND/563137
10. Multilayer ceramic Y5V Switching noise, power converter (high frequency)
Source:
Ceramic
http://www.digikey.com/product-
detail/en/02016G153ZAT2A/478-1053-2-ND/563163
11. Multilayer ceramic Z5U Switching noise, power converter (high frequency)
Source:
Ceramic
http://www.digikey.com/product-
detail/en/GRM188E41H103MA01D/490-1588-2-
ND/587082
12. Nickel barrier Surface-mount devices
Source:
Ceramic
http://sg.element14.com/avx/cm05cg101j50ah
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3. Electronusa Mechanical System [Research Center for Electronic and Mechanical]
Film
1. Metalized polypropylene film Tubes radio, audio amplifier, hi-fi audio
Source:
http://media.digikey.com/Photos
Film
2. Multilayer polypropylene Filter circuit, oscillator, hi-fi audio, timers
Source:
http://www.maplin.co.uk/metallised-polypropylene-
Film
capacitors-382
3. Metalized polyester film Tubes radio, audio amplifier, hi-fi audio
Source:
http://www.maplin.co.uk/metallised-polyester-film-
Film
capacitors-361
4. Multilayer metalized polyester Tubes radio, audio amplifier, hi-fi audio
Source:
http://www.maplin.co.uk/multilayer-metallised-
Film
polyester-film-capacitors-12031
5. Metal foil polypropylene film High frequency equipment, high temperature
equipment
Source:
http://media.digikey.com/photos
Film
6. Polystyrene film Tuner circuit, equalization circuit, measuring circuit,
analog circuit, filter circuit, digital circuit, computing
circuit
Source:
http://www.farnell.com/datasheets/30215.pdf
Film
7. Audio grade axial Telecommunication instrument, hi-fi audio system
(axial lead polypropylene)
Source:
http://www.maplin.co.uk/audio-grade-
Film
polypropyleneaxial-capacitors-393
9. Poly film chip LCD backlight
Source:
http://media.digikey.com/photos/Panasonic
Film
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4. Electronusa Mechanical System [Research Center for Electronic and Mechanical]
10. Resin dipped High reliability circuit, coupling-decoupling, filter
Source:
http://www.maplin.co.uk/resin-dipped-ceramic-
Film
capacitors-297
11. Thin film IC devices, ADC, timing circuit, filter circuit
Source:
http://media.digikey.com/photos/Susumu
Film
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5. Electronusa Mechanical System [Research Center for Electronic and Mechanical]
Mica
1. Mica Tuned circuit
Source:
http://media.digikey.com/Photos
Mica
2. Mica RF specific RF application, antenna tuning, medical equipments
Source:
http://www.cde.com/catalogs/MC.pdf
Mica
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6. Electronusa Mechanical System [Research Center for Electronic and Mechanical]
Electrolytic
1. Electrolytic aluminum Power supply, audio frequency coupling
Source:
Electrolytic
http://www.digikey.com/product-detail/en/ECA-
1HM100B/P10393TB-ND/268478
2. High temp axial electrolyte Telecommunication, filter, automotive
Source:
Electrolytic
http://media.digikey.com/Photos
3. Radial electrolytic Power supply, inverter
Source:
Electrolytic
http://www.maplin.co.uk/low-profile-5mm-
electrolytic-capacitors-512999
4. VX axial electrolytic Automotive, high temperature application
Source:
Electrolytic
http://www.maplin.co.uk/axial-electrolytic-
capacitors-7011
5. High temp radial Automotive, high temperature application
(high temperature radial electrolytic capacitor)
Source:
Electrolytic
http://www.maplin.co.uk/high-temperature-radial-
electrolytic-capacitors-11992
6. Non polarized electrolytic AC circuit, speaker crossover filter, audio amplifier
Source:
Electrolytic
http://www.maplin.co.uk/non-polarised-electrolytic-
capacitors-12777
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7. Electronusa Mechanical System [Research Center for Electronic and Mechanical]
Tantalum
1. Tantalum Audio frequency coupling
Source:
Tantalum
http://media.digikey.com/Renders
2. Tantalum bead Coupling-decoupling, timing circuit, filter circuit
Source:
Tantalum
http://www.maplin.co.uk/tantalum-bead-capacitors-
394
3. Tantalum SMD Aerospace application
Source:
Tantalum
http://media.digikey.com/Renders/Keme
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8. Electronusa Mechanical System [Research Center for Electronic and Mechanical]
Variable
1. Variable capacitor Tuned circuit, resonant circuit
Source:
Variable
http://media.digikey.com/Photos/Tusonix
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