P278SJ473M480A

Operating Temperature:	-40°C ~ 110°C
Features:	--
Ratings:	X1
Applications:	EMI, RFI Suppression
Lead Spacing:	0.886" (22.50mm)
Termination:	PC Pins
Height - Seated (Max):	0.669" (17.00mm)
Size / Dimension:	1.063" L x 0.315" W (27.00mm x 8.00mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	P278
Dielectric Material:	Paper, Metallized
Voltage Rating - DC:	--
Voltage Rating - AC:	480V
Tolerance:	±20%
Capacitance:	0.047µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Film capacitors have gained widespread popularity in recent years as alternative components to aluminum electrolytic capacitors. They offer superior performance, a wide operating temperature range, high endurance and flexibility in their mounting options. The P278SJ473M480A is a film capacitor developed by Panasonic Corporation. It is available in the market in several sizes, ranging from 0.1µF to 47µF, and features a dielectric film of polyethylene naphthalate (PEN). The main feature of the P278SJ473M480A is its high voltage capability at low leakage current, which makes it suitable for a variety of high-voltage applications such as power supplies, motor control, UPS systems and HVAC systems. Additionally, its operating temperature range is -40°C to 85°C, making it suitable for various environmental conditions. The physical construction of the P278SJ473M480A is a very thin flat film capacitor with its non-alkaline electrolytic dielectric typically ranging from 0.05mm to 0.2mm. Terminations may be of ultrasonic welding, soldering or even laminated technologies. It has a consistent over-voltage capability and an insulation resistance of over 100 ohms. It is designed to be self-healing and feature high pulse withstand.The P278SJ473M480A has some distinct advantages over other film capacitors. It is capable of operating in temperature extremes which makes it suitable for many demanding applications. Additionally, its low ESR (Equivalent Series Resistance) rating of 0.02-0.05 ohms makes it highly efficient for large capacitor networks. Its high voltage and high pulse sturdiness also makes it a good choice for many other applications. The working principle of a film capacitor is simple. By connecting two conductive plates together and separating them by a thin dielectric film, the electric field is created and electrical charge accumulates on each plate. Thus, the capacitor is able to store energy in the form of an electric field.The P278SJ473M480A shares similar characteristics to most other film capacitors, such as a design that allows for a high dielectric (dielectric constant) of up to 7.8, a low equivalent series resistance, high working voltage and low acoustic noise levels. It also has a low self-discharge rate, meaning that it can keep energy stored for longer periods of time. Perhaps the most striking feature of the P278SJ473M480A is its superior temperature resistance. It is rated to operate at temperatures of -40°C to 85°C, making it suitable for applications that operate in extreme temperature regions such as medical devices and automotive systems. Additionally, its ability to withstand up to 5,000V makes it an ideal choice for high voltage power supplies and motor control applications.Overall, the P278SJ473M480A offers superior performance in a wide range of critical applications. Its ability to withstand extreme temperatures, high voltage and its low equivalent series resistance make it an attractive choice for a variety of applications, from high voltage power supplies to automotive systems. As its advantages make it stand out from other film capacitors, it’s likely that the P278SJ473M480A will remain one of the most popular and versatile film capacitors in the market.

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