Lifetime @ Temp.:	--
Failure Rate:	--
Features:	Military
Manufacturer Size Code:	--
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	--
Package / Case:	Axial
Mounting Type:	Through Hole
Series:	Military, MIL-PRF-39003/1, CSR13
Operating Temperature:	-55°C ~ 125°C
ESR (Equivalent Series Resistance):	--
Type:	Hermetically Sealed
Tolerance:	--
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Tantalum Capacitors: M39003/01-2903H Application Field and Working Principle

Tantalum capacitors are widely used in various types of electrical and electronic equipment due to their high capacitance per unit volume, their low voltage, their low leakage current and their long life. The M39003/01-2903H series of tantalum capacitors is designed for use in high performance, high reliability applications such as military and aerospace. This article will discuss the application field and working principle of the M39003/01-2903H series of tantalum capacitors.At its most basic level, a capacitor is an electrical component that stores energy in the form of an electric field. A capacitor contains two metal plates (or other conducting surfaces) separated by an insulating material (dielectric). When a voltage differential is applied across the plates, a charge builds up on each plate. The amount of charge stored is proportional to the applied voltage, and is also dependent on the amount of surface area of the plates and the dielectric’s electric field strength.The M39003/01-2903H series of tantalum capacitors takes advantage of this phenomena by placing a porous tantalum anode between two layers of solid electrolyte dielectric, with a porous tantalum cathode on the back side. The electrolyte solution is a manganese dioxide and is formed around the porous anode. As a voltage differential is applied, charge is stored within the anode and cathode structure, resulting in a capacitor with a very low temperature coefficient and a very low internal resistance.The M39003/01-2903H series of tantalum capacitors is designed to be used in high temperature and high humidity applications. The capacitor is rated for use from -55°C to 105°C and can tolerate humidity levels up to 95%. Its small physical size and weight, and its low ESR makes it particularly well suited for use in military and aerospace applications. It has an extended life time, which results in less maintenance and replacement costs.The M39003/01-2903H series of tantalum capacitors are ideal for applications such as power supplies, battery backups, microprocessors, control systems and noise suppression. Due to their high capacitance per unit volume and low voltage ratings, these capacitors can handle high amounts of current without overheating or bursting. Additionally, the dielectric used (Manganese Dioxide ) assists in limiting self-heating, further ensuring a safe operating temperature.In summary, the M39003/01-2903H series of tantalum capacitors are reliable, robust capacitors that are well suited for high performance, high reliability applications such as military and aerospace. They are small in size, lightweight and have an extended life time. In addition, they offer a high capacitance per unit volume, a low temperature coefficient, low ESR and are able to withstand high temperatures and humidity levels. As such, the M39003/01-2903H series of tantalum capacitors are an excellent choice for applications requiring a reliable, robust capacitor.

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