Series:	Military, MIL-PRF-39003/9, CSR21
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	18µF
Tolerance:	±5%
Voltage - Rated:	50V
Type:	Hermetically Sealed
ESR (Equivalent Series Resistance):	175 mOhm
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	--
Mounting Type:	Through Hole
Package / Case:	Axial
Size / Dimension:	0.289" Dia x 0.686" L (7.34mm x 17.42mm)
Height - Seated (Max):	--
Lead Spacing:	--
Manufacturer Size Code:	C
Features:	Military
Failure Rate:	S (0.001%)

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Tantalum Capacitors

Tantalum capacitors are an important electrical component for various electronic products. The M39003/09-0381/HSD is one such capacitor that offers reliable performance and a long service life in a wide range of applications. This article will discuss the capabilities of the M39003/09-0381/HSD, its application fields, and the working principles behind its operation.The M39003/09-0381/HSD is a surface-mount tantalum capacitor with a polyester-tetrafluoroethylene (polytetrafluoroethylene or PTFE) dielectric. It is a non-polar capacitor with a voltage rating of 10 volts. This type of capacitor is generally used as a bypass component in a variety of electronic products. The size of the M39003/09-0381/HSD varies slightly depending on the type of case. It is available in an 0402 case or an 0201 case.The M39003/09-0381/HSD uses an oxide layer on its anode (positive) and cathode (negative) electrodes as its dielectric. This oxide layer allows it to store charge between its anode and cathode. When the voltage across its terminals is increased, the oxide layer becomes thinner and allows more charge to pass from one electrode to the other. This action is known as capacitance. The capacitance of the M39003/09-0381/HSD is usually between 0.47 μF and 0.56 μF.Due to the thinness of its oxide layer, the M39003/09-0381/HSD is often used in high-frequency circuits, such as radio systems, where its low resistance and low dielectric absorption ensures that signals can pass through it without distortion. It is also frequently used in power supplies, where its low ESR helps reduce power losses and heat buildup. The M39003/09-0381/HSD is also used in medical equipment due to its low leakage current and high insulation resistance.The M39003/09-0381/HSD is widely used in the automotive industry as well. This type of capacitor is often used in ECUs and engine management systems to filter electrical noise and ensure the accuracy and reliability of critical signals.The working principle behind the M39003/09-0381/HSD is quite simple. When a voltage is applied to its terminals, an electric field is created between its anode and cathode. This electric field allows the M39003/09-0381/HSD to store charge between its electrodes. When the voltage is released, the stored charge dissipates and the capacitor returns to its neutral state.The M39003/09-0381/HSD has a wide range of applications due to its small size, low leakage current, and reliable performance. It is an important component in a variety of electronic devices and systems, from medical equipment to automotive ECUs. The working principle behind the M39003/09-0381/HSD is simple, yet effective. This, combined with its reliable performance, makes it a valuable capacitor in modern electronics.

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