ESRL390M04B

Series:	ESRL
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Type:	Polymer
Capacitance:	39µF
Tolerance:	±20%
Voltage - Rated:	4V
ESR (Equivalent Series Resistance):	35 mOhm
Lifetime @ Temp.:	1000 Hrs @ 105°C
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Applications:	Bypass, Decoupling
Ripple Current @ High Frequency:	1.6A @ 100kHz
Lead Spacing:	--
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max):	0.043" (1.10mm)
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 capacitors are electrical components that are widely used in modern electronics. They are also referred to as multi-layer capacitors or electrical double-layer capacitors (EDLCs). They are composed of a layered structure in which a thin aluminum electrolyte layer is sandwiched between two electrodes.The ESRL390M04B is a type of aluminum-polymer capacitor developed by Vishay Intertechnology. It has a relatively low ESR (equivalent series resistance) compared to traditional aluminum electrolytic capacitors. This makes it ideal for use in various applications such as power supplies, voltage regulation and charge pumps.The ESRL390M04B has an incredibly low equivalent series resistance (ESR) of 0.0015 ohms and can operate at temperatures up to +105°C. It also offers a high ripple current capability and long shelf life.The ESRL390M04B is available in three different dielectric options: Polyethylene-imide/Aluminum Film, Polyethylene-imide/Aluminum Oxide Film and Polyphenylene-sulfone/Aluminum Oxide Film, each giving their own unique performance characteristics. The working principle of the ESRL390M04B is based on the principle of double layer capacitance. The capacitor consists of two metal plates of opposite charges (positive and negative) which are separated by an electrolyte layer. When a voltage is applied to these plates, an electric field is created which causes a charge to flow between the plates. This charge creates a capacitance in the form of a double layer.The ESRL390M04B capacitor can be used in various forms of electronic applications. Its high ripple current capability and low ESR makes it suitable for use in high frequency switching circuits and high power output systems such as DC-DC Converters, AC-DC Inverters and Motor Drivers.It is also suitable for use in input voltage smoothing, output voltage filtering and slow-moving signal control in consumer electronics and imaging products.Furthermore, the ESRL390M04B can also be used in solar and wind energy systems, as well as in the automotive industry. It can help to reduce the use of large electrolytic capacitors, thereby improving efficiency and providing cost savings.The ESRL390M04B offers many advantages over traditional aluminum electrolytic capacitors, and its low ESR makes it ideal for use in many applications. With its high ripple current capability and extended life, it is certainly a capacitor that should be considered when designing electronic systems.

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