M39003/09-0144H

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Tantalum capacitors are polarized capacitors that are designed for high-level voltage blocking applications. The M39003/09-0144H is one of the larger sizes of tantalum capacitors designed for high voltage power supply and filtering. This device is used mainly in military, aerospace, and telecommunications applications.

The M39003/09-0144H measures 0.180 inch (4.566 mm) in diameter and 0.150 inch (3.8 mm) in height. It has an operating temperature range of -55 to +85 °C, insulation resistance of greater than 100 MΩ, and an excellent self-healing ability. It has a rated voltage of 200 V and a capacitance range of 18 to 220 µF.

The M39003/09-0144H is a polarized tantalum capacitor, which means that the anode (positive) lead must be connected to the higher voltage potential. This will ensure that the device operates correctly and will not fail prematurely due to wrong polarity. The anode and cathode (negative) leads are labeled clearly on the device to help identify the correct connection.

The M39003/09-0144H utilizes a tantalum-doped manganese dioxide as its dielectric material. This material has a very low dielectric loss at higher frequencies, making it ideal for high-frequency filter applications. Unlike many other capacitor materials, the tantalum manganese dioxide dielectric does not suffer from dielectric constant variations with frequency, which improves the capacitance stability and allowed operating range.

The electrolyte used in theM39003/09-0144H is a conductive organic polymer (OCP). This polymer swells with moisture from the air when the voltage is applied, which provides the necessary conduction path for the capacitor to function. The swelling also provides improved electrical connection between the capacitor terminals and the dielectric material, which further improves performance.

The M39003/09-0144H is an excellent choice for applications requiring high temperature and high voltage operation. The device\'s self-healing ability and excellent capacitance stability make it an ideal choice for filtering applications in military, aerospace, and telecommunications fields. The OCP electrolyte allows the capacitor to operate in high vibration and shock applications, which makes it well suited for many environments.

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