M39003/01-3122H

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Tantalum capacitors, or tantalum electrolytic capacitors, are polarized capacitors that are used widely because of their small size, light weight, and high capacitance. M39003/01-3122H is one type of a tantalum capacitor. It offers low equivalent series resistance (ESR) and high voltage ratings in one compact package.

The M39003/01-3122H is a long-life, high temperature, high voltage, axial-leaded capacitor. Applications for this capacitor include telecommunications equipment, power supplies, medical equipment, military and aerospace applications, and automotive electronics. It is over-rated at its maximum temperature of 105°C and is ideal for these specific, critical applications that must have very long lifetimes. The device is also outstanding for its reliability and performance in dynamic frequency applications.

The capacity of the M39003/01-3122H tantalum capacitor is rated at 2200 μF (micro Farads). Its operating voltage is rated at 25 VDC, and its surge voltage is 38 VDC. It has a case size of 1206 and an ESR of 0.2 ohms. It has a temperature range of -55°C to 105°C, an insulation resistance greater than 100 MΩ, and a capacitance tolerance of ±20%. The device is RoHS compliant and lead-free.

M39003/01-3122H capacitors use the principle of electrostatic capacitance in order to function. A capacitor consists of two conducting plates that are separated by an insulating material called the dielectric. When a voltage is applied across the capacitor’s terminals, the electrostatic field created stores energy in the form of electric charge. The amount of charge stored is determined by the capacitance of the capacitor. This stored charge is proportional to the voltage applied and remains stored until it is released.

Tantalum capacitors are constructed using tantalum powder as the anode and a layer of oxide on the anode as the dielectric. The oxide layer is formed by applying electrical current to the anode, creating a chemical reaction between the anode and the air. This layer functions as the dielectric and provides a high surface area for increased capacitance. The cathode is often made of a metal material such as aluminum or sintered tantalum beads. Electrolytic capacitors function by passing direct current through the anode-oxide layer to produce an electric field that creates the capacitance.

M39003/01-3122H capacitors have a low equivalent series resistance and are designed for both low voltage and high voltage use. The small size and light weight also makes them ideal for use in telecommunications, power supplies, medical equipment, and automotive electronics. The long life and high temperature tolerance also make them ideal for use in harsh environments. These characteristics make this type of capacitor suitable for numerous applications that require long reliability and performance.

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