Spark Suppression Capacitor

Specifications of park suppression capacitor:

Dielectric: Polypropylene film

Electrodes: Vacuum evaporated metal

Coating: Encapsulated in reinforced flame retardant plastic case sealed with epoxy resin meeting the requirement of UL94V-0.

Leads: Radial leads of tinned wire/ insulation flexible wire

Reference standard: IEC 60384-14 (3nd Edition,2005) UL1414,UL1283,GB/T 14472-1998,EN60384-14

Climatic catalogue: 40/100/21 (GMF)

Capacitance versus rated voltage:

0.001µF-4.7µF/275VAC (50/60Hz)

0.001µF-4.7µF/310VAC (50/60Hz), (UL)

Capacitance tolerance: M ±20% K ± 10% J ± 5%

Dissipation factor (tangent of loss): ≤0.1％ (at 20℃ , 1KHz)

Voltage-proof:

4.3*UR Unit VDC (1minute at 20℃ )

Insulation resistance:

C ≤0.33μF, IR ≥15,000mΩ, C>0.33μF, IR*C≥5000S (1 minute at 20 and RH≤65%)

Feature of spark suppression capacitor

Spark suppression capacitors are currently one of the main solutions for spark suppression in capacitors due to their excellent high voltage per micron and ultra-low, stable dissipation factor. And most importantly, it also has better self-healing properties than other thin-film dielectric technologies.
Some limitations of the suppression capacitor itself are related to the quality of the film used and the protective material encapsulated around it. The amount and type of epoxy, the epoxy used to encapsulate the perimeter of the capacitor, and the material and thickness of the encapsulated capacitor case are critical to product reliability. In addition, there are mechanical challenges when making smaller value capacitors; lower value capacitors require less film and metallization when making capacitors, which can make the product more susceptible to moisture damage.

Application

1.Line-by-pass and Antenna coupling
2.Across-the-line, spark killer
3. FMI filter
4. Switching power supply

With the development of technology level, the replacement cycle of electronics, home appliances, communications and other industries is getting shorter and shorter, and film suppression capacitors have become an indispensable electronic device to promote the replacement of the above industries with their good electrical performance and high reliability. element. In the next few years, with the further development of digitization, informatization, and network construction, and the country’s increased investment in power grid construction, electrified railway construction, energy-saving lighting, hybrid vehicles, etc., as well as the upgrade of consumer electronic products, the market demand for film capacitors It will further show a trend of rapid growth.