B32774D0205J000

ESR (Equivalent Series Resistance):	11 mOhms
Features:	Long Life
Ratings:	--
Applications:	DC Link, DC Filtering
Lead Spacing:	1.083" (27.50mm)
Termination:	PC Pins
Height - Seated (Max):	0.846" (21.50mm)
Size / Dimension:	1.240" L x 0.492" W (31.50mm x 12.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 105°C
Series:	B32774
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	1100V (1.1kV)
Voltage Rating - AC:	--
Tolerance:	±5%
Capacitance:	2µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Film capacitors, or "film caps" as they are often referred to, are one of the most widely used electronic components. Their applications range from filter capacitors for filtering power supplies and high-frequency circuits to coupling capacitors for coupling signals between two circuits or stages. They are also commonly used in motorstart circuits, together with a motor start capacitor, to achieve soft starts for high-current motor applications. Their performance is excellent, particularly in applications requiring high reliability, long life, and low temperature coefficients. The B32774D0205J000 is a film capacitor from the EPCOS group, and this article will explore its application field and working principle.

B32774D0205J000 application field

B32774D0205J000 is an advanced film capacitor available from the EPCOS group. It is suitable for use in applications that require a high level of reliability, such as filter capacitors for power supplies, high-frequency circuits, and motorstart circuits. Its small size allows it to produce a large range of values within a small area. It also provides high capacitance along with low ESR and other desirable effects. Its temperature stability is also excellent and it features a self-healing characteristic which ensures that it can operate in hostile environments for long periods without losing its performance.

B32774D0205J000 working principle

The B32774D0205J000 works on the same principle as other film capacitors. It consists of a film dielectric formed from PET (polyethylene terephthalate) and two metal electrodes. When voltage is applied, an electric field is formed between the two electrodes, which causes an electrical charge to build on the surface of the dielectric. The charge redistributes around the dielectric in the form of an electrical field, producing the capacitance effect. However, due to the thin nature of the dielectric and the relatively small area of the electrodes, the capacitance is highly dependent on the applied voltage, leading to a voltage-dependent capacitance characteristic.

Conclusion

The B32774D0205J000 is a film capacitor from the EPCOS group, designed for use in high-reliability applications such as filter capacitors, motorstart capacitors, and high-frequency circuits. It has a small size, excellent temperature stability, and a self-healing characteristic, which makes it ideal for use in hostile environments. Its working principle involves the formation of an electric field between two electrodes, which causes an electrical charge to build on the surface of the dielectric, creating the capacitance effect.

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