930C4P18K-F

Operating Temperature:	-55°C ~ 105°C
Features:	--
Ratings:	--
Applications:	General Purpose
Lead Spacing:	--
Termination:	PC Pins
Height - Seated (Max):	--
Size / Dimension:	0.354" Dia x 1.000" L (9.00mm x 25.40mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Series:	930C
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	400V
Voltage Rating - AC:	250V
Tolerance:	±10%
Capacitance:	0.18µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Film capacitors, or polyester film capacitors, are a type of capacitor that uses thin electrical films for dielectric insulation. Thin films of polyester, polypropylene, polycarbonate, or other plastics may be used, depending on the desired characteristics of the capacitor. Film capacitors have a number of advantages over other types of capacitors, including high electrical stability, self-healing properties, and low-loss characteristics. In this article, we will discuss the application field and working principle of one particular type of film capacitor, the 930C4P18K-F.

Application Field

The 930C4P18K-F capacitor is mainly used in fluorescent lighting, fluorescent lamp ballasts and starters, computer monitors, television sets, halogen lamps, electromotive motors, electronic tools and other electronic applications. It is also commonly used as a capacitor in switch and power supply circuits. The main features of this type of capacitor are its small size, high capacitance, low equivalent series resistance (ESR) and low cost.

Working Principle

The 930C4P18K-F capacitor works on the principle of electrostatic field capacitance. It consists of two metallic plates separated by an insulating film such as polyester, polypropylene, polycarbonate, or other plastic films. When a voltage is applied to the two electrodes, an electric field is established between them, causing a potential difference (voltage). This potential difference creates an electric field between the two plates, resulting in a capacitance. The capacitance of the 930C4P18K-F capacitor is determined by several factors, including the size of the plates, the distance between them, and the dielectric constant of the material used for the insulating film. The 930C4P18K-F capacitor has a small size and a low ESR, making it ideal for use in high-frequency applications, such as radio and television receivers, computer monitors, and other electronic devices. It also has low losses due to its self-healing properties, meaning that the capacitance does not decrease over time as it does in other types of capacitors.

Advantages

The 930C4P18K-F capacitor has several advantages over other types of capacitors. It has a high electrical stability, which means it can maintain its capacitance in varying temperatures and humidity. This type of capacitor also has a low ESR, which means it has good switching ability. In addition, due to its self-healing properties, it is able to recover most of its capacitance even after short circuit conditions. Lastly, it is also cost effective, making it an ideal choice for many applications.

Conclusion

In conclusion, the 930C4P18K-F capacitor is a type of film capacitor that has many advantages over other types of capacitors. It is commonly used in fluorescent lighting, fluorescent lamp ballasts and starters, computer monitors, television sets, halogen lamps, electromotive motors, electronic tools and other electronic applications. It is a small sized capacitor with a high capacitance and low ESR, making it perfect for high-frequency applications. Furthermore, it is cost-effective and has good self-healing properties.

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