 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
C440 Datasheet(PDF) 38 Page - Kemet Corporation |
|
|
|||||||||||||||||||||||||||||
C440 Datasheet(HTML) 38 Page - Kemet Corporation |
|
|
38 / 66 page  38 Film Capacitors With over 50 years of experience manufacturing plastic film capacitors, KEMET also designs and builds custom equipment for film capacitor production, continuously innovating and improving the production capability, quality, and efficiency. Because films are exceptionally thin – less than 1µm in some cases – extreme precision and process control is required to manufacture quality capacitors for demanding applications. In the most common type of film capacitor, the electrodes are vacuum deposited, or metallized onto a roll of precision plastic film. The metallization is not deposited near one edge. Two films, one with the unmetallized edge on the left and one on the right, are laid on top of each other and wound into a roll. In many cases, the roll is flattened. Next, several metal layers are sprayed on the ends. These become the electrodes onto which wires are welded before encapsulation. Another variation has the two films in a stack of layers much like a multilayer ceramic capacitor. These can either have leads attached and be encapsulated for through-hole capacitors, or left unencapsulated for surface mount capacitors. KEMET offers several variations on this basic construction using all the commonly available plastic films to meet a broad range of application requirements. KEMET commonly customizes film capacitors for specific applications when a standard part is not available. Dielectric absorption % Insulation time constant(s) at +23°C Dissipation factor at 1 kHz, +23°C Temperature coefficient (ppm/°C) Operating Temperature (°C) Nomal/(Extended) Dielectric constant at 1 kHz, +23°C Min. film thickness (µm) Abbreviation Dielectric Material Polyester Polyethylene Naphthalate Polyphenylene Sulfide Polypropylene Paper Impregnated PET PEN PPS PP P 0.9 1.4 1.2 2.4 8.0 3.3 3.0 3.0 2.2 5.5 0.5% 0.4% 0.06% 0.03% 0.8% 25,000 25,000 50,000 100,000 15,000 0.5 1.2 0.05 0.01 N/A -55 to +100 ( +125) -55 to +125 ( +150) -55 to +125 ( +175) -55 to +105 ( +125) -40 to +115 +400 (±200) +200 (±150) 0 (-50) -55 to +100 550 (±50) +100 to +150 0 (+50) +150 to +200 -200 (-100, +50) almost liner +1200 (±200) Properties of common dielectrics used in film capacitors electrode free margin dielectric |
Similar Part No. - C440 |
|
Similar Description - C440 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
