M39003/01-7215/TR

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	C (0.01%)
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:	50V
Tolerance:	±20%
Capacitance:	4.7µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum Capacitors

Tantalum capacitors are a type of non-polarized electrolytic capacitor most commonly used in modern electronic devices. Capacitors of this type are constructed from an oxide film of tantalum metal which provides a relatively high capacitance per unit volume, allowing them to be used in miniaturized circuits. Tantalum capacitors are ideal where space is limited, such as in portable devices like mobile phones or notebooks, and where high capacitance values are required. The most common type of tantalum capacitor is the M39003/01-7215/TR.

The M39003/01-7215/TR

The M39003/01-7215/TR is a surface-mount tantalum capacitor manufactured by the Vishay Corporation. It pacakges two anode pins and one cathode pin in a small package of approximately 5x3x2 mm, making it ideal for use in modern miniature electronic devices. The capacitor has a capacitance range of 1 to 10 μF with a voltage rating of 6.3 VDC to 35 VDC. It also features a high temperature rating of -55ºC to +125ºC and a low maximum ESR at low frequency of 1600mΩ. The M39003/01-7215/TR has low levels of tolerances and leakage current, providing stable voltage outputs and improved reliability. This makes the capacitor especially suitable for use in industrial controls and motor systems, where a reliable supply of power is critical. Additionally, its high capacitance combined with its low ESR results in excellent power filtering performance, meaning it can be used in communication, power and computer systems.

The Working Principle

Tantalum capacitors work in the same way as other non-polarized electrolytic capacitors. A thin layer of insulating tantalum pentoxide (Ta2O5) separates two conducting plates (the anode and the cathode) and allows an electric current to flow between them. Ta2O5 has a very high dielectric constant, which means that it offers a surprisingly high capacitance for a very small volume. The charge on the anode dissolves electrons from the cathode, releasing them into the electrolyte (the electrical insulator) and creating two distinct charges. This creates a capacitance between the two plates, and thus can be used to store energy. When the charge is applied, the capacitor stores energy, and when the charge is removed, the energy is released again.

Summary

The M39003/01-7215/TR is an ideal solution for applications requiring a high capacitance and a small size. Utilizing a thin film of tantalum dielectric for insulation, the capacitor offers a range of voltage ratings and low temperature coefficients. Additionally, its low levels of tolerances and leakage current ensure a high degree of reliability and power filtering performance. By understanding the working principle of tantalum capacitors, it is clear that this type of device plays a crucial role in modern electronics.

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