Operating Temperature:	-55°C ~ 125°C
Features:	--
Ratings:	--
Applications:	Automotive; EMI, RFI Suppression
Lead Spacing:	0.394" (10.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.472" (12.00mm)
Size / Dimension:	0.512" L x 0.236" W (13.00mm x 6.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	B32521
Dielectric Material:	Polyester, Polyethylene Terephthalate (PET), Metallized - Stacked
Voltage Rating - DC:	63V
Voltage Rating - AC:	40V
Tolerance:	±10%
Capacitance:	3.3µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors: B32521C0335K000 application field and working principle

Introduction

A film capacitor, also known as a dielectric capacitor, is an electronic component consisting of two or more non-migratable dies that are separated by a layer of thin film. It is a type of capacitor whose dielectric is a thin layer of plastic film, such as polystyrene, polypropylene, polycarbonate, Mylar, teflon, or Kapton. Such capacitors are well suited for high frequency applications due to their low Equivalent Series Resistance (ESR) and low inductance values.Film capacitors can also have a wide range of capacitance values, ranging from a few picofarads to several hundred thousand microfarads. The B32521C0335K000, in particular, is a type of film capacitor designed for use in high frequency switching power supplies. It has a capacitance of 33.5µF and a voltage rating of 350VAC. It is often used in the power supply circuit for various power supplies, such as power amplifiers, medical equipment, computer power supplies, and many other microelectronic devices.

Application field

The B32521C0335K000 film capacitor is designed for high temperature applications, with an operating temperature range of -55°C to +105°C. This makes it ideal for use in high-powered and high-temperature power supplies, as well as low-temperature applications such as refrigeration systems.The capacitor is also suitable for applications that require a low ESR, such as motor control circuits and power filters. In addition, it is suitable for use in circuit boards that have to operate in very hostile environments, such as in auto cars and NASA spaceships.

Working Principle

The B32521C0335K000 film capacitor works on the principle of electrostatic induction. Two non-migratable dielectrics are separated by a thin film. When a voltage is applied to the capacitor, the dielectric films become electrically polarized and charge is stored in the electric field between them.This stored charge increases the capacitance of the device and is the source of the capacitors electrical energy. As the voltage is applied, an electric field builds up between the dielectric layers. When the voltage is removed, the capacitance of the device decreases and the stored energy is released.

Conclusion

The B32521C0335K000 is a film capacitor designed for high frequency switching power supplies. It has a capacitance of 33.5µF and a voltage rating of 350VAC. This capacitor is suitable for high temperature applications, as well as those requiring a low ESR, and is able to operate in hostile environments. The B32521C0335K000 capacitor works on the principle of electrostatic induction, where an electric field builds up between two dielectric layers when voltage is applied, and the stored energy is released when the voltage is removed.

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