M39003/09-0147H

Series:	Military, MIL-PRF-39003/9, CSR21
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	68µF
Tolerance:	±20%
Voltage - Rated:	20V
Type:	Hermetically Sealed
ESR (Equivalent Series Resistance):	95 mOhm
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	--
Mounting Type:	Through Hole
Package / Case:	Axial
Size / Dimension:	0.351" Dia x 0.786" L (8.92mm x 19.96mm)
Height - Seated (Max):	--
Lead Spacing:	--
Manufacturer Size Code:	D
Features:	Military
Failure Rate:	P (0.1%)

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<h2>Tantalum Capacitors</h2><p>The M39003/09-0147H (hereafter referred to as the “M39003”) is a type of tantalum capacitor commonly used in many applications. This type of capacitor is notable for its high performance and extended service life. It is an electrolytic capacitor that combines a manufactured anode and cathode, in a tantalum pentoxide film, with an electrolyte. It is a polarized capacitor, meaning that its positive and negative terminals must be connected the proper way. As such, these components must be handled with care to avoid short-circuits or other serious damage.</p><p>The M39003 has a wide range of features and capabilities that make it well-suited for various uses. One of the most important is its stability, as it is capable of maintaining its capacitance and electric parameters over a wide range of temperatures. Additionally, it features high insulation resistance, exceptional surge voltage, and is immune to high-frequency noise, making it capable of performing reliably in many types of applications.</p><p>Due to its various advantages, the tantalum capacitor is favored in many applications, ranging from the automotive and aerospace industries to military and industrial electronics. For example, these capacitors are commonly used in high-frequency applications where power needs to be regulated. Additionally, they are frequently utilized in circuit boards, diode networks, bypass elements, surge arresters, lighter-electronics, and filtering elements.</p><p>The M39003 is available in a variety of different styles and sizes, each with a different range of capacitance and versatile operating parameters. The most popular style is the radial-leaded version, which is comprised of two wires that attach on both sides of its body. The axial-leaded version, on the other hand, is composed of two wires connected to its top and bottom. The M39003 also comes in various sizes, including 35V (ESR), 20V (X-High ESR), and 50V (High Frequency).</p><h3>Working Principle</h3><p>At the core of the M39003’s working principle is its capacitance, which is its ability to store a certain amount of power and then discharge it when necessary. While it is similar to the more commonly used ceramic capacitors, the M39003 utilizes an electrolytic polarization instead of its ceramic counterparts. The key difference between the M39003 and ceramic capacitors is that the differential between their capacitance values, which is much higher in the M39003. This makes them better suited for certain applications such as, providing voltage spike protection, low loss, and fast discharge.</p><p>In addition to capacitance, the M39003 also operates on other physical principles, such as inductance and dielectric loss. A tantalum capacitor\'s inductance and dielectric loss are higher than those of ceramic capacitors, but lower than film capacitors. It is this combination of capacitance, inductance, and dielectric loss that gives the M39003 its unique features and capabilities.</p><p>The polarization of tantalum capacitors also affects its operation. When the anode and cathode are connected to each other, the anode becomes negatively charged, while the cathode becomes positively charged. This creates a direct current (DC) flow between the two. </p><p>Finally, the M39003 is also notable for its ability to handle high currents. This is attributed to its efficient design, as the anode and cathode are coated with different materials, allowing it to store and discharge a large amount of power without being damaged.</p><h3>Conclusion</h3><p>The M39003/09-0147H capacitor is a type of tantalum capacitor commonly used in many areas. Its extended service life and high performance make it suitable for demanding applications such as automotive, aerospace, and industrial electronics. Additionally, its combination of capacitance, inductance, dielectric loss, and stable performance makes it well-suited for high-frequency applications where power needs to be regulated.</p>

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