EEF-SE0D391R Capacitors

Series:	SP-Cap SE
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Polymer
Capacitance:	390µF
Tolerance:	±20%
Voltage - Rated:	2V
ESR (Equivalent Series Resistance):	5 mOhm
Lifetime @ Temp.:	1000 Hrs @ 105°C
Operating Temperature:	-40°C ~ 105°C
Ratings:	--
Applications:	General Purpose
Lead Spacing:	--
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max):	0.165" (4.20mm)
Surface Mount Land Size:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Mounting Type:	Surface Mount
Package / Case:	2917 (7343 Metric)

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Aluminum - Polymer CapacitorsAluminum - polymer capacitors are an emerging and important field of electromechanical energy storage and are becoming increasingly popular with designers of power supply and energy management solutions. The capacitors are a combination of two distinctly different materials, aluminum and a polymeric material, which are encapsulated together to form a reliable and robust interface. This combination provides a unique combination of features and benefits which make them an attractive choice for many applications.In this article we will focus on the EEF-SE0D391R application field and working principle. The EEF-SE0D391R is a high temperature aluminium - polymer capacitor designed for use in telecom applications including power supplies and Elettronica switching gear. It is designed to endure temperatures up to 150 °C and can be used in severe operation conditions without losing performance.The EEF-SE0D391R is a two-piece capacitor, consisting of a metalized ceramic core and a capacitor element. The ceramic core is constructed with robust dielectric material and is subdivided into two pieces - a dielectric layer and an insulation layer. The capacitor element contains both metallic coated aluminum and polymeric materials. This combination works together to create a capacitor package with excellent heat, voltage and reliability characteristics.The working principle of the EEF-SE0D391R is based on the conduction of dielectric current from the capacitor element to the ceramic core. The conduction of the dielectric current to the core causes a shift of electric fields in the capacitor element, causing a voltage drop across the capacitor element. This voltage drop creates electrical stress on the element, which can result in the capacitor\'s lifetime. Thus it is important to carefully consider the design, optimization and control of electrical stress on the capacitor element in order to maximize the lifetime of the capacitor.In order to improve the performance of the EEF-SE0D391R and extend its life, it is important to use a suitable heat sink and a well-ventilated environment. It is also important to use appropriate filters when using the capacitor in higher voltage applications, as this can help to reduce the degradation of the capacitor due to excessive electrical stress.In conclusion, the EEF-SE0D391R aluminum - polymer capacitor is an ideal choice for high temperature and high voltage applications due to its excellent performance and robust design. It offers exceptional performance under extreme conditions and is a reliable and long lasting solution for power supplies and switching gear. With its low ESR, it is also a popular choice for high current applications. By carefully considering the design, optimization and control of electrical stress on the capacitor element, designers can extend the capacitor\'s lifetime and maintain performance under extreme conditions.

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