B32676T4405K000

ESR (Equivalent Series Resistance):	15.5 mOhms
Features:	Long Life
Ratings:	--
Applications:	DC Link, DC Filtering
Lead Spacing:	1.476" (37.50mm)
Termination:	PC Pins
Height - Seated (Max):	0.591" (15.00mm)
Size / Dimension:	1.634" L x 0.945" W (41.50mm x 24.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 105°C
Series:	B32676
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	450V
Voltage Rating - AC:	--
Tolerance:	±10%
Capacitance:	4µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film Capacitors: B32676T4405K000 Application Field and Working Principle

Film capacitors are components that are used to store energy in an electrical field. They are often found in electronic circuits, such as those used in consumer electronics. The B32676T4405K000 is a particular film capacitor made by the Epcos brand. This capacitor is a polypropylene capacitor that is designed for high-temperature operation and its applications are primarily in automotive and avionics markets.

Features and Specifications

The B32676T4405K000 is a polypropylene film capacitor. It is designed to be sealed in a metal case. This capacitor is rated to a temperature range of -30 up to +105 Celsius and it has surge voltage rating of up to one thousand volts. It has an insulation resistance rating of at least 1 Gohm and a capacitance of 0.47 uF. The nominal reactance for this capacitor is between 86 and 108 ohms and the current rating for this capacitor is 5.9 A. Overall, this capacitor has several features that make it suitable for automotive and avionics applications.

Applications

The B32676T4405K000 is primarily used in automotive and avionics applications. This capacitor is designed for high-temperature operation and it is able to handle a wide variety of temperature requirements. In automotive applications, this capacitor is used in powertrain management systems, such as airbag inflatables, airbags, seatbelt pretensioners, and ABS systems. This capacitor is also used in avionics applications, such as DC to DC converters, voltage regulators, ground fault protection circuitry, and high voltage load switches.

Working Principle

The working principle behind the B32676T4405K000 capacitor is similar to all other types of film capacitors. This capacitor is made up of two metal plates that are separated by a layer of insulating material called a dielectric. When a voltage is applied across the plates, electrical charges accumulate on the plates and create an electric field. This electric field stores energy in the form of electrostatic potential energy, which can later be released when the capacitor is discharged.When a voltage is applied to the capacitor, the larger plate (the one with the higher potential) will become positively charged and the smaller plate (the one with the lower potential) will become negatively charged. As more voltage is applied, the electric field becomes stronger and more energy is stored. When the voltage is removed, the electric field collapses and the energy is released.

Conclusion

The B32676T4405K000 is a polypropylene film capacitor that is designed for high-temperature operation. It is primarily used in automotive and avionics applications. This capacitor is able to store energy in an electrical field by establishing an electric field between two metal plates that are separated by a layer of insulating material. When voltage is applied to the capacitor, the electric field strength increases, allowing the capacitor to store more energy. When the voltage is removed, the energy is released.

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