DPFF16S18J-F

Operating Temperature:	-55°C ~ 105°C
Features:	--
Ratings:	--
Applications:	High Pulse, DV/DT
Lead Spacing:	1.094" (27.80mm)
Termination:	PC Pins
Height - Seated (Max):	0.850" (21.60mm)
Size / Dimension:	1.701" L x 0.850" W (43.20mm x 21.60mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	DPFF
Dielectric Material:	Polypropylene (PP), Metallized
Voltage Rating - DC:	1600V (1.6kV)
Voltage Rating - AC:	500V
Tolerance:	±5%
Capacitance:	0.018µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Film capacitors, or polypropylene film capacitors, are non-polarized capacitors, characterized by their small size and high stability. Compared to other types of capacitors, film capacitors provide higher performance, because of their superior linearity, meaning they keep their capacitance and dielectric properties over time. They are available in a range of values, including the DPFF16S18J-F.

DPFF16S18J-F Application Field and Working Principle

The DPFF16S18J-F film capacitor is a non-polarized device, with a capacitance of 16sF and a maximum working voltage of 1000VDC. It is typically used for applications such as power factor correction, low and medium voltage surge protection, and high resistance circuits. This type of film capacitor is notable for its low equivalent series resistance (ESR), low inductance, and high-energy absorption capacity.In operation, the polypropylene film serves as the dielectric material, and is separated by two metallic electrodes. Because of their construction, film capacitors are self-healing, meaning that they can automatically repair the damage caused by overvoltage. Film capacitors feature low temperatures and low losses, making them ideal for a wide range of industrial and electronic applications. The maximum permissible ripple current determines the temperature coefficient of the capacitor. With higher temperatures, the capacitance of the capacitor may change, as its materials are temperature-sensitive.

Advantages and Disadvantages of the DPFF16S18J-F

The main advantage of the DPFF16S18J-F film capacitor is its extremely small size and low weight relative to other types of capacitors. Its self-healing properties make it ideal for surge protection applications, and its good mechanical properties make it suitable for cases with limited space. This type of capacitor is also characterized by its stability, meaning it can withstand shocks and vibrations without being affected by its stated capacitance and voltage values changing. On the other hand, its temperature sensitivity means that it should not be used in applications that involve high temperature ranges, as the capacitance may be affected. Additionally, its high sensitivity to temperature means its capacitance is much less predictable than non-film capacitors.

Conclusion

The DPFF16S18J-F film capacitor is a type of non-polarized capacitor, characterized by its small size and lightweight. It is ideal for applications such as power factor correction and surge protection, as it is self-healing and has a low ESR and inductance. However, its temperature sensitivity and lesser predictability should be taken into consideration when using it in applications.

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