Film Capacitors by Kendeil

COUGAR ELECTRONICS range of Electrolytic capacitors and film capacitors fit perfectly with most of the need for power electronics applications

We are an official distributor of KENDEIL, a worldwide leader in power electronic capacitor.

Weight table

Power Electronics Film Capacitors

Screw terminals mounting capacitors for various applications :

  • Aluminum case film capacitor
  • Wide temperature range -40C +85C (except ref K33 and K34)
  • High usefull life: 100000h @ nominal voltage / 85C
  • Filled and Sealed with UL94V0 material
  • 30 years of track record on the field !

RefTypeApplicationCapacitance
(µF)
Voltage
(V DC)
Temperature
(°C)
Useful Life
(hours)
Data Sheet
K31 TYPEDC Power Film
Capacitor
General Purpose
Designed for professional power electronics by slope metallization.
Low and medium frequencies switching.
Solar converters, Motor drives, Inverters, Welding.
120 µF
1000 µF
600V
1300V
-40°C
+85°C
100000Data Sheet
K32 TYPEDC Power Film
Capacitor
High frequency application
Designed for professional power electronics by segmented and slope metallization.
Low, Medium and High frequencies switching.
Solar converters, Motor drives, Traction applications, Inverters, Welding.
100 µF
1000 µF
600V
1300V
-40°C
+85°C
100000Data Sheet
K33 TYPEDC Power Film
Capacitor 
High capacity density
Replacement of electrolytic capacitors by metallized polypropylene film capacitors in DC link applications.
All cases where high capacitance and high voltage are requested, i.e. DC applications as filtering and commutation circuit, high current, high frequency applications.
50 µF
2000 µF
700V
5000V
-25°C
+70°C
100000Data Sheet
K34 TYPEDC Power Film
Capacitor 
High capacity density
Designed for professional power electronics.35 µF
700 µF
900V-40°C
+70°C
100000Data Sheet

Film Capacitors Kendeil

Heat pipes coolers are like the Loch Ness monster... lot's of people are speaking about, but few people have really tested them! This technology sounds a little bit mysterious for people coming from a pure electronics background ! How can such a thing (looking like a basic copper tube), would be able to convey something like 1000 time more calories than the best typical thermal conductor in electronics : copper ! You will certainly find the answer in our dedicated page to the heat pipe functioning, or to heat pipe page on wikipedia, if you want to go deeper in the subject. [caption id="attachment_1877" align="aligncenter" width="685"]Heat Pipe functionning Heat Pipe functionning[/caption]

Thermal management challenges in power electronics

As it was explained in our market analysis article about SIC semiconductors, power electronics is currently at the beginning of a revolution. Semiconductors are now able to work up to incredibly high frequency (50 to 100kHz), with excellent efficiency, and low losses. Because working at high frequency leads to reducing size and weight, this revolution increasesthe density of power losses. New thermal management challenges are in front of us. But good news, heat pipes are here to help solving them ! Here are the main reasons why ?

Heat pipe advantages

  • High thermal conductivity. Because heat pipes are using one of the most efficient way to convey calories : phase change, their high thermal conductivity will be the best advantage to solve your thermal management issues.
[caption id="attachment_1880" align="aligncenter" width="300"]Heat Pipe thermal conductivity simulation Heat Pipe thermal conductivity simulation[/caption]
  • Temperature range. It is mainly depending from the working fluid inside the heat pipe. Considering most of the power electronics application going from 50 to 200 degC, you will not find a better fluid than water. Good news, water is not dangerous and not explosive as you may know... Bad news, water is electrically conductor as you may know too. Electronics designer never sleeps soundly when water flows close to their components ! If you feel a bit of apprehension, read our next point.
 
  • Reliability. Heat pipes are excellent in reliability because they use no mooving mechanical parts and need no energy like electricity. No worry about maintaining the motor or the filter of your pump like in a cooling loop. The difference of temperature is the only "motor" which garanty an endless  functionning. Heat pipes are commonly used in aerospace application and railway, where life cycle of the product can be up to 50 years !
[caption id="attachment_1861" align="aligncenter" width="300"]Railway Heat Pipe Cooler Railway Heat Pipe Cooler[/caption] We hope this article have contributed to better understanding of heat pipes.

Contact us

For any question, enquiry, contact COUGAR ELECTRONICS here. Our thermal engineers will be happy to help :-)
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