B32521C6333K289

Dielectric Material:	Polyester, Polyethylene Terephthalate (PET), Metallized - Stacked
Features:	--
Ratings:	--
Applications:	Automotive; EMI, RFI Suppression
Lead Spacing:	0.394" (10.00mm)
Termination:	PC Pins
Height - Seated (Max):	--
Package / Case:	Radial
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 125°C
Series:	B32521
Voltage Rating - DC:	400V
Voltage Rating - AC:	200V
Tolerance:	±10%
Capacitance:	0.033µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Not For New Designs
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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What is a Film Capacitor?
Film capacitors, also known as film dielectric capacitors, are a type of capacitors composed of a film material that acts as the dielectric, and two electrodes. The dielectric is a thin, insulating film such as Mylar, polyester, polypropylene, polyolefin, polysulfone, polycarbonate, and so on. The electrodes are usually aluminum or zinc-plated metallic foils. Film capacitors have a wide range of applications in both power and signal circuits, such as scanning electronics and pulse applications.

B32521C6333K289 Application Field and Working Principle
The B32521C6333K289 Film Capacitor is a radial-leaded, full-sealed, low-loss film capacitor designed for industrial automation systems, one of the most reliable applications for film capacitors. It is used for dividing power supply lines, power supply filtering, and signal coupling in circuits operating between 100Hz and 100kHz. Its operating frequency is between -55℃~+125℃ and its unique thermal shock characteristics make it ideal for use in demanding environments.

The B32521C6333K289 Film Capacitor is based on a film and foil technology, which is based on an insulated film material, two electrodes, and two terminals. This type of capacitor is mainly composed of an electrode dielectric and a film, a metal or aluminum foil, an insulating film dielectric and a connecting terminal. The insulating film dielectric is the most important component of the capacitor, as it is responsible for controlling the flow of current and forming the electrostatic field. The film dielectric is usually made of polypropylene, polyester, polyester and polyimide, or a combination of these materials, and is usually in a roll form. The two electrodes of the capacitor are usually zinc-plated aluminum and stainless steel foils.

The B32521C6333K289 Film Capacitor relies on the use of an intact electrolytic film dielectric to achieve electrical insulation between the electrodes. In this way, most of the voltage or current passes through the film dielectric, while the rest passes through the electrode and terminal. This type of film capacitor has excellent high-frequency characteristics and a low temperature coefficient compared to other capacitors.

Regarding its working principle, when a voltage difference is applied between the two electrodes of the capacitor, electrons will move from the electrode with the highest voltage potential to the electrode with the lowest, in order to balance the distribution of electrons and form an electric field. The electric field formed by this flow of current is what determines the capacitance of the capacitor. This process also occurs when a voltage is applied to the capacitor, which causes an electric current to flow between the two electrodes. This current is what creates the electrostatic field, which is responsible for the electrical insulation between the two electrodes.

In conclusion, the B32521C6333K289 Film Capacitor is an ideal choice for high performance, long life applications in industrial automation systems, as it offers a reliable, highly efficient and stable performance. Its unique features such as its low temperature coefficient and high-frequency characteristics, as well as its ability to withstand extreme temperatures, are what make it the perfect choice for these applications.

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