The document discusses different types of capacitors used in electronic and mechanical systems. It provides 12 types of ceramic capacitors, 11 types of film capacitors, 2 types of mica capacitors, and 6 types of electrolytic capacitors along with their common applications and sources for more information. The document was authored by Umar Sidik, Director of Engineering at Electronusa Mechanical System.

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:
http://www.maplin.co.uk/metallised-ceramic-
platecapacitors-304
2. Decoupling disc Tuned circuit (RF), decoupled circuit (RF)
Source:
http://www.maplin.co.uk/decoupling-ceramic-disc-
capacitors-318
3. Ceramic COG Decoupling circuit, tuned circuit
Source:
http://media.digikey.com/photos/TDK
4. Ceramic X7R Decoupling circuit
Source:
http://media.digikey.com/Renders
5. Multilayer ceramic Switching noise, power converter (high frequency)
Source:
http://www.digikey.com/scripts/DkSearch/dksus.dll
6. Multilayer ceramic COG Switching noise, power converter (high frequency)
Source:
http://www.digikey.com/product-
detail/en/C0603C0G1H010C030BA
7. Multilayer ceramic NPO Switching noise, power converter (high frequency)
Source:
http://www.digikey.com/product-
detail/en/02013A0R5CAT2A/478-1000-2-ND/563110
8. Multilayer ceramic X5R Switching noise, power converter (high frequency)
Source:
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)
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:
http://www.digikey.com/product-
detail/en/02016G153ZAT2A/478-1053-2-ND/563163
11. Multilayer ceramic Z5U Switching noise, power converter (high frequency)
Source:
http://www.digikey.com/product-
detail/en/GRM188E41H103MA01D/490-1588-2-
ND/587082
12. Nickel barrier Surface-mount devices
Source:
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
2. Multilayer polypropylene Filter circuit, oscillator, hi-fi audio, timers
Source:
http://www.maplin.co.uk/metallised-polypropylene-
capacitors-382
3. Metalized polyester film Tubes radio, audio amplifier, hi-fi audio
Source:
http://www.maplin.co.uk/metallised-polyester-film-
capacitors-361
4. Multilayer metalized polyester Tubes radio, audio amplifier, hi-fi audio
Source:
http://www.maplin.co.uk/multilayer-metallised-
polyester-film-capacitors-12031
5. Metal foil polypropylene film High frequency equipment, high temperature
equipment
Source:
http://media.digikey.com/photos
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
7. Audio grade axial Telecommunication instrument, hi-fi audio system
(axial lead polypropylene)
Source:
http://www.maplin.co.uk/audio-grade-
polypropyleneaxial-capacitors-393
9. Poly film chip LCD backlight
Source:
http://media.digikey.com/photos/Panasonic
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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-
capacitors-297
11. Thin film IC devices, ADC, timing circuit, filter circuit
Source:
http://media.digikey.com/photos/Susumu
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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
2. Mica RF specific RF application, antenna tuning, medical equipments
Source:
http://www.cde.com/catalogs/MC.pdf
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6. Electronusa Mechanical System [Research Center for Electronic and Mechanical]
Electrolytic
1. Electrolytic aluminum Power supply, audio frequency coupling
Source:
http://www.digikey.com/product-detail/en/ECA-
1HM100B/P10393TB-ND/268478
2. High temp axial electrolyte Telecommunication, filter, automotive
Source:
http://media.digikey.com/Photos
3. Radial electrolytic Power supply, inverter
Source:
http://www.maplin.co.uk/low-profile-5mm-
electrolytic-capacitors-512999
4. VX axial electrolytic Automotive, high temperature application
Source:
http://www.maplin.co.uk/axial-electrolytic-
capacitors-7011
5. High temp radial Automotive, high temperature application
(high temperature radial electrolytic capacitor)
Source:
http://www.maplin.co.uk/high-temperature-radial-
electrolytic-capacitors-11992
6. Non polarized electrolytic AC circuit, speaker crossover filter, audio amplifier
Source:
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:
http://media.digikey.com/Renders
2. Tantalum bead Coupling-decoupling, timing circuit, filter circuit
Source:
http://www.maplin.co.uk/tantalum-bead-capacitors-
394
3. Tantalum SMD Aerospace application
Source:
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:
http://media.digikey.com/Photos/Tusonix
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