185103J250RAB-F

Operating Temperature:	-55°C ~ 125°C
Features:	--
Ratings:	--
Applications:	General Purpose
Lead Spacing:	0.197" (5.00mm)
Termination:	PC Pins
Height - Seated (Max):	0.256" (6.50mm)
Size / Dimension:	0.283" L x 0.098" W (7.20mm x 2.50mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	185
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	250V
Voltage Rating - AC:	160V
Tolerance:	±5%
Capacitance:	10000pF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Film Capacitors

Film capacitors, also known as plastic film capacitors, are composed of metal film-insulated polyester, polypropylene or other dielectric films. The recognizable feature of these capacitors is that the capacitance is verystable even under harsh environmental conditions and over a wide range of temperatures. In addition, these capacitors are designed to have a low equivalent series resistance and capacitance variations. With the impressive performance characteristics and stability, film capacitors are ideal for a variety of uses, such as in switched-mode power supplies, DC-DC converters, and portable electronics.

185103J250RAB-F Application Field and Working Principle

The polypropylene film capacitor model 185103J250RAB-F is an AC capacitor that has been used in a wide range of applications in telecom, automotive, and industrial industries. It is in the ISO 9001 certified Johnson Electric Group manufacturing center. This capacitor is a rectangular plastic film capacitor with a “B” screw terminal rating and 5mm lead spacing, as shown in Figure 1. Figure 1: 185103J250RAB-F Screw Terminal Rating The 1851A series, with its flame resistant characteristics, can be used in high-voltage applications up to 2250V~2.5KVAC and 50/60 Hz. These models are known for their good performance in high-voltage applications. Moreover, this capacitor is comparatively compact which allows it to be used in tight spaces, making it ideal for applications that require high performance and small packages. In terms of its working principle, this capacitor is designed to store an electric charge when operating. This occurs when an AC voltage is applied to the two terminals of the capacitor. The charge will then create an electric field between the two plates, upping the potential difference between the two. The two wire leads act as the terminals connecting the capacitor to the circuit. Charge accumulation is the main working principle in capacitors. To illustrate this further, when AC currents run through the capacitor, a di-electric material forms between the two plates, thus, creating a difference between the electrostatic field of the two plates. This produces a voltage level that is the same as the applied voltage. When the capacitor is fully charged, the capacitor’s voltage starts to drop but eventually reaches an equilibrium. As the applied current changes, the capacitor will output an equal voltage drop, no matter the frequency or voltage of the applied current. This is what makes the capacitor a filter device. The stored charge in film capacitors is greatly dependable on the dielectric material between the two plates. Materials such as polyesters and polypropylene are used in the industry.In conclusion, the 185103J250RAB-F is an extremely reliable and compact capacitor that is ideal for a wide range of applications such as telecommunications, automotive, and industrial industries. Its wide range of features, from its screw terminal rating to its flame resistant characteristics, make a perfect choice for any high-voltage application.

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