B32621A6103J289

Operating Temperature:	-55°C ~ 105°C
Features:	--
Ratings:	--
Applications:	High Pulse, DV/DT
Lead Spacing:	0.394" (10.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.354" (9.00mm)
Size / Dimension:	0.512" L x 0.157" W (13.00mm x 4.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	B32621
Dielectric Material:	Polypropylene (PP), Metallized - Stacked
Voltage Rating - DC:	630V
Voltage Rating - AC:	400V
Tolerance:	±5%
Capacitance:	10000pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Introduction

Film capacitors, also known as film dielectric capacitors, are a type of capacitor that utilizes a film of plastic or paper as a dielectric. The B32621A6103J289 is a film capacitor with a wide range of applications and a relatively simple working principle. Film capacitors are often chosen for applications requiring high stability and reliability due to their inherently low leakage current and dielectric loss.

Construction

The main components of a film capacitor are two metal electrodes, a dielectric film and two flat plastic or paper insulating plates. The metal electrodes are made of either silver-plated iron or zinc-plated steel. The dielectric film is typically composed of polypropylene, polyester or paper. The film is then rolled up and inserted between the two insulating plates. This construction gives the film capacitor its characteristic cylindrical shape.

Capacitance

Film capacitors have an unusually wide capacitance range, ranging from 0.1 picofarads to 1.5 microfarads. This makes them suitable for a variety of applications, from filtering low frequencies to controlling high frequencies. As with other types of capacitors, the capacitance value is determined by the size of the dielectric film and the distance between the electrodes.

Working Principle

The working principle of a film capacitor is quite simple. When a voltage is applied to the two metal electrodes, an electric field is created in the dielectric material. This electric field causes a dielectric polarization, with the positive charges migrating to one of the electrodes, and the negative charges migrating to the other. This polarization creates an electric storage barrier, known as a capacitor, storing the electric energy. This capacitance then acts as an impedance to the flow of current.

Applications

Film capacitors are used in a wide range of applications, from radio and television broadcasting, to power supplies, telecommunication systems and starting motors. They are also used in electronic circuits for filtering and smoothing voltage, for timing and for tuning to specific frequencies.

Conclusion

The B32621A6103J289 is a film capacitor with many potential applications due to its wide capacitance range and simple working principle. Its simple construction and high reliability make it ideal for use in a variety of electronic circuits and applications.

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