ESMH451VNN681MA50T

Operating Temperature:	-25°C ~ 85°C
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	2.047" (52.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Applications:	General Purpose
Ratings:	--
Polarization:	Polar
Series:	SMH
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	450V
Tolerance:	±20%
Capacitance:	680µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors, also known as polarized capacitors, are commonly used components in electronics. They are made up of two aluminum plates sandwiched between a piece of paper separator saturated with a conductive electrolyte. The difference between two plates is either positive and negative or other differences determined by the required design and feature of the device. The construction and operating principle of aluminum electrolytic capacitors allow them to store and release electrical energy in a controlled manner, making them a popular choice for applications when large amounts of energy are needed such as power chord on appliances and battery backups.The ESMH451VNN681MA50T is an example of an aluminum electrolytic capacitor. This specific capacitor in particular is a double-layer construction with a high pulse discharge and extended temperature range. It is also designed for high-reliability applications such as automotive and aerospace uses. The most important specification for this capacitor is its voltage rating. This is usually expressed in terms of a working voltage or a maximum voltage rating. The voltage rating of the capacitor is determined by the thickness of the aluminum foil which is used in its construction. This determines the amount of electric charge it can store and release. Furthermore, the construction of the capacitor also includes a rubber tubing filled with conductive electrolytes which determine the electrical characteristics of the component.When it comes to the application field of the ESMH451VNN681MA50T, its two main areas are automotive and aerospace. These applications typically require a capacitor with a higher pulse discharge and a much wider temperature range than most other capacitors. Due to its extended temperature range, this capacitor can also be used in applications that are exposed to extreme temperature conditions such as vehicle engine compartments which can reach temperatures up to 200°C. Its higher pulse discharge makes it perfect for applications with significant current peaks such as the starting motor of the car, the starter of an aircraft, or electric drives on buses.The working principle of an aluminum electrolytic capacitor can be broken down into two stages. First, when a voltage is applied across its electrodes, an electrochemical reaction takes place on the surface of its foil resulting in the generation of charged ions. These ions will then be attracted to the aluminum foil depending on the polarity of the applied voltage, resulting in a charge across the aluminum foil. This process is also called Faraday’s law. The second stage happens when the capacitor is discharged. This process is also referred to as the diffusion of charge and takes place when the electric charge stored by the aluminum plates is discharged into the external circuit through the electrolyte.In conclusion, the ESMH451VNN681MA50T is an example of an aluminum electrolytic capacitor that is particularly designed for applications where high pulse discharge and large voltage ratings are required. Its extended temperature range and high reliability make it ideal for use in automotive and aerospace applications. Additionally, its working principle can be broken down into two main stages: the generation of ions and the diffusion of charge. All these factors contribute to make aluminum electrolytic capacitors one of the most popular and widely used components in electronics today.

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