M39003/01-8375/TR

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	D (0.001%)
Features:	Military
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.185" Dia x 0.474" L (4.70mm x 12.04mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Lifetime @ Temp.:	--
Series:	Military, MIL-PRF-39003/1, CSR13
ESR (Equivalent Series Resistance):	--
Type:	Hermetically Sealed
Voltage - Rated:	100V
Tolerance:	±10%
Capacitance:	1µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

Tantalum capacitors are electronic components made of porous tantalum anodes, covered with a dielectric layer, and covered with metal electrode cathodes. Due to their extremely small size, they’re often used in many consumer and industrial applications, including radio-frequency interference (RFI) suppression, voltage regulation, filters, and signal connection. The M39003/01-8375/TR is an example of a tantalum capacitor, and is designed for use in high-current switching power supplies, radio-frequency applications, and optical modules. This article will explore the application field and working principle of the M39003/01-8375/TR.

Working Principle

Tantalum capacitors are polarized capacitors, meaning they will only transmit current in one direction. They are composed of a pellet of tantalum material (the anode) and a solid dielectric layer. This dielectric layer can be made from several materials, such as tantalum pentoxide or manganese dioxide, depending on the desired application. The anode is then covered with a conductive material, usually aluminum or platinum, to create the cathode. When the capacitor is connected to an external circuit, electrons begin to flow from the cathode to the anode. This flow of electrons creates an electrical field, which enables the capacitor to store energy. How much energy the capacitor can store depends on several factors, such as the size of the anode, the type of dielectric material used, and the operating temperature.

Application Field

The M39003/01-8375/TR has been designed for use in high-current switching power supplies, radio-frequency applications, and optical modules. It is a rectangular niobium and tantalum electrolyte capacitor with an anode oxide coating that also serves as the main cathode. It has a very low equivalent series resistance (ESR) and is able to filter out high-frequency signals more efficiently than other capacitors. In radio-frequency applications, the M39003/01-8375/TR is used to provide direct current leakage and filtering of high-frequency signals. Its low ESR minimizes signal distortion, while its anode oxide coating ensures that it is highly resistant to environmental noise. In optical modules, the M39003/01-8375/TR is used to produce a stable current output by reducing variations in output voltage. This is due to its ability to reduce power dissipation and offer higher energy storage capacity, thus providing more stability in the output current signal.

Conclusion

The M39003/01-8375/TR is a type of polarized tantalum capacitor often used in high-current switching power supplies, radio-frequency applications, and optical modules. Its anode oxide coating provides excellent insulation and is highly resistant to environmental noise, while its low ESR ensures low signal distortion. Due to its compact size, it is able to reduce power dissipation and offer more stability in the output current signal, making it an ideal choice for these applications.

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