Customization: | Available |
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Type: | Polypropylene Capacitor |
Application: | AC / Motor, Power, Air Conditioner, Fan |
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Temperature range | -40ºC~+85ºC/+105ºC |
Capacitance | 0.1~10uF(20-200kvar) |
Nominal voltage | 500~2000V.AC |
Capacitance tolerance | ±5%(J),±10%(K) |
Voltage resistance | 1.5Un(60S) |
Fire resistance | UL94V-0 |
Application and main enterprises of film capacitors for new energy vehicles
Thin film capacitor is a capacitor with metal foil as electrode, which is overlapped with polyethylene, polypropylene, polystyrene or polycarbonate from both ends and wound into a cylindrical structure.
According to the type of plastic film, it is also called polyethylene capacitance (also known as Mylar capacitance), polypropylene capacitance (also known as PP capacitance), polystyrene capacitance (also known as PS capacitance) and polycarbonate capacitance.
At present, most of the film capacitors used for DC support of new energy vehicles use high-temperature polypropylene film as the medium. Polypropylene film capacitors have the following advantages:
Battery, motor and motor control technology are the three cores of new energy vehicles. In the motor drive and control circuit, the main electronic components required are power semiconductor device IGBT, control IC and capacitor, of which IGBT accounts for about 2/3 of the cost.
The core of motor control technology is the inverter technology that needs high-efficiency motor control. The inverter technology that needs high-efficiency motor control needs a powerful IGBT module and a matching DC support capacitor.
For a long time, ceramic capacitors and aluminum electrolytic capacitors are the most common capacitive electronic components in the market. They are widely used in various electronic products, mainly for filtering, frequency modulation, DC isolation and time control in circuit systems.
With the intensification of automobile electrification, the voltage and output power of automobile circuit system have been greatly improved, and the key components have stricter requirements on the withstand voltage and impact resistance of electronic components. The change of working conditions puts forward new requirements for the performance of capacitive components in electronic systems, which drives the demand for thin film capacitors in the automotive industry.
Thin film capacitor is the main component in the driving circuit of electric vehicle, which mainly plays a smooth role. The inverter converts the DC current of the battery into a voltage with small change through the converter, and then converts it into a rectangular wave similar to the AC through the IGBT switching element. The resulting surge voltage is very large, which needs to be eliminated by using a smoothing capacitor.
Early smoothing capacitors used to use aluminum electrolytic capacitors. However, in order to improve efficiency, the maximum voltage of motor drive was increased from 500V to 650V. The withstand voltage of aluminum electrolytic capacitors was insufficient, and thin-film capacitors became the mainstream. Prius began to use thin-film capacitors from the second generation.
In the field of new energy vehicles, the existing aluminum electrolytic capacitors will be partially replaced by thin film capacitors in the future. At present, more and more companies have used film capacitors to replace electrolytic capacitors. BYD "Qin" and Tesla Model 3 both use thin film capacitors.
At the same time, in dc/dc, motor control system, battery management system and other high-voltage electrical units, the use of thin-film capacitors will also increase with the promotion and popularization of new energy vehicles.
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Details
Model Number:MKP-LS
Type:Polypropylene Film Capacitor
Place of Origin:Guangdong, China
Brand Name:SMILER
D/C:MKP-LS2022
Supplier Type:Original manufacturer, ODM
Capacitance:100uf, 0.01-10uF
Media Available:datasheet, Photo
Tolerance:±5%
Package Type:Through Hole
Rated Voltage:630VDC~2000VDC
Operating Temperature:-40°C- +85°C
Brand:IGBT Snubber capacitor
Voltage - Rated:800VDC
ESR (Equivalent Series Resistance):≤2mΩ
Applications:power electric equipment absorption protection
Circuit Type:Isolated
Temperature Coefficient:-40°C- +85°C
Voltage - Breakdown:Not Applicable
Capacitance Range:0.01-10uF
Application:power electric equipment absorption protection
Description:Polyester Film Capacitor
Voltage:3000-10000V.DC
Capacitance tolerance:±5%(J) ,±10(K)
Voltage test between terminals:1.5Un/10S(20±5ºC)
Operating temperature range:-40~+105ºC
Storage temperature range:-40~+105ºC
LIfetime expectancy:100000h(Un,70ºC)