ESRH181M04B

Series:	ESRH
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Last Time Buy
Moisture Sensitivity Level (MSL):	--
Type:	Polymer
Capacitance:	180µF
Tolerance:	±20%
Voltage - Rated:	4V
ESR (Equivalent Series Resistance):	12 mOhm
Lifetime @ Temp.:	1000 Hrs @ 105°C
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Applications:	General Purpose
Ripple Current @ High Frequency:	3A @ 100kHz
Lead Spacing:	--
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max):	0.161" (4.10mm)
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 CapacitorsAluminum – Polymer capacitors are a versatile solution for power applications. They provide higher capacitance in a smaller volume than other types of capacitors, and they can provide a wide range of operating voltages and discharge resistances. By combining different materials and designs, these capacitors can provide excellent energy storage, high current handling capacity, good stability in temperature and frequency, and good reliability. With these advantages, aluminum – polymer capacitors are used in a variety of applications in electronic devices and medical instruments, as well as automotive, industrial, and solar power applications.ESRH181M04B is a type of aluminum – polymer capacitor that is designed for use in power conversion applications. It has a capacitance of 181 µF, and its working voltage is ranging from 2.5 V to 16 V. The capacitor is constructed of an anode foil, cathode plate, and insulation layer. The anode foil is made up of aluminum layers and is formed into a frame. The cathode plate is a diffusion bonded structure with a dielectric barrier layer between the anode and cathode. The cathode plate is also insulated from any outside electrical currents. The insulation layer is made from a very thin layer of insulating material.The ESRH181M04B capacitor works by storing energy in the form of a dielectric field within its insulation layer. When a direct current is applied to the capacitor, electrons are attracted to the cathode plate, creating a negative charge on its surface. This negative charge creates an opposite electrical field on the anode foil, which acts like a platform for the electrons to store their energy. The dielectric barrier between the anode and the cathode prevents any charge from spreading onto the other side. When the applied current is removed, the stored energy is released back into the circuit as an alternating current.The ESRH181M04B capacitor is suitable for many power conversion applications due to its high capacitance, operating voltage range, discharge resistance, and reliability. Its most common uses include energy storage, power conditioning, inrush current suppression, and power factor correction. For these applications, the capacitor can easily be configured to handle AC and DC currents over a wide range of frequencies. Furthermore, the capacitor is reliable in harsh environments, making it a solid choice for many environmental applications.Overall, the ESRH181M04B aluminum – polymer capacitor is a versatile component used in many power applications. It provides excellent energy storage at a fraction of the cost of other types of capacitors. It is capable of withstanding extreme temperatures and frequencies and has excellent reliability. With its high capacitance and discharge resistance, it is suitable for use in power conversion applications as well as more extreme environments.

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