M39003/09-0043/TR

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	M (1%)
Features:	Military
Manufacturer Size Code:	D
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.351" Dia x 0.786" L (8.92mm x 19.96mm)
Package / Case:	Axial
Mounting Type:	Through Hole
Lifetime @ Temp.:	--
Series:	Military, MIL-PRF-39003/9, CSR21
ESR (Equivalent Series Resistance):	100 mOhm
Type:	Hermetically Sealed
Voltage - Rated:	20V
Tolerance:	±5%
Capacitance:	56µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum capacitors are widely used components in high-tech devices. They are used in applications such as computers, smartphones, military equipment, and aerospace. The M39003/09-0043/TR is a series of tantalum capacitors produced by IDT Corporation. It is a surface mount hermetically sealed tantalum electrolytic capacitor. The application field and working principle of the M39003/09-0043/TR series will be discussed in this article.M39003/09-0043/TR capacitors are designed for use in high-reliability applications such as military, aerospace, and industrial applications. The hermetic seal provides protection against moisture and temperature extremes. The series consists of 10 capacitor sizes, ranging from 1-50µF, with voltage ratings of 6.3V, 10V, 16V, 20V, 25V, and 50V. The capacitors have a reliability of 1% per 1,000 hours at 85°C and a 100% surge current test up to 200ms.The working principle of tantalum capacitors is based on the principle of electrostatic capacitance, in which two conductors separated by an insulating medium (dielectric) create a capacitance. The conductive electrodes in a tantalum capacitor are made of tantalum, and the dielectric is usually an oxide dielectric. When the voltage across the electrodes is applied, a layer of oxide on the tantalum metal forms the dielectric layer, allowing a certain amount of current flow between the two conductive electrodes.The construction of a M39003/09-0043/TR capacitor consists of a solid tantalum slug, an anode wire, a cathode wire, and an insulating casing. The slug is connected to the anode wire, and the cathode wire is connected to the insulating casing. When a voltage is applied between the anode and cathode, an electric field is created between the anode and slug, causing a layer of oxide to form. This layer of oxide creates a dielectric layer, allowing only a certain amount of current to flow, and thus creating the capacitance.The M39003/09-0043/TR is a reliable and robust capacitor. It has a hermetic sealing up to -65°C and provides consistent performance across a wide range of temperatures. It has low ESR (Equivalent Series Resistance), excellent high-frequency characteristics, and can handle up to 200ms of surge current testing. It also has a long life expectancy and performs well in highly corrosive and moist environments.In conclusion, the M39003/09-0043/TR is a series of reliable and robust tantalum capacitors designed for use in high-reliability applications. It offers excellent high-frequency characteristics and can withstand high surge current testing up to 200ms. It is hermetically sealed and provides consistent performance across a wide range of temperatures. The working principle of a M39003/09-0043/TR capacitor is based on the principle of electrostatic capacitance, where a layer of oxide on the tantalum metal acts as the dielectric layer.

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