M39003/01-2409

Operating Temperature:	-55°C ~ 125°C
Failure Rate:	M (1%)
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:	75V
Tolerance:	±10%
Capacitance:	3.3µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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<h1>Tantalum Capacitors</h1><h2>M39003/01-2409 Application Field and Working Principle</h2>Tantalum capacitors, also known as ta-caps, are a type of electrolytic capacitor that uses a conductive metal oxide formed onto a conductive tantalum wild as the dielectric material. This metal oxide film provides an ideal high dielectric strength, experienced high thermal stability and offers low leakage current. The M39003/01-2409 is a series of tantalum capacitors manufactured by EPCOS, a major supplier to the electronic component industry. This capacitor series is specifically designed for use in military, density critical, even high temperature application fields due to its temperature stability and superior performance characteristics. The M39003/01-2409 series is also known for low profile designs and a high voltage range (up to 75 volts).<h3>Working Principle</h3>The working principle of the M39003/01-2409 series of tantalum capacitors can be explained by examining the internal structure of the device. These capacitors consist of a metal oxide dielectric layer sandwiched between the anode and cathode leads. The anode and cathode leads are then soldered to the substrate or the base material for the capacitor. The dielectric layer consists of a tantalum oxide (Ta2O5) that is formed when the exposed tantalum cathode comes into contact with an electrolyte solution. When a voltage is applied to the capacitor, electrons flow through the dielectric layer which is responsible for storing the electrical charge. Since the electrons flow through a dielectric material, the current output decreases with increasing voltage. This property makes tantalum capacitors particularly suitable for high voltage applications where current flow needs to be managed or limited. The dielectric layer also helps to protect the capacitor from voltage spikes or electrical surges which can cause permanent damage or destruction of the device if they are not managed correctly. This protection is also known as the capacitors ‘flash over’ protection. In addition to the dielectric layer, the capacitor also includes a set of small plates which function as a voltage multiplier. These plates are typically made from tantalum or ceramics, and they are responsible for increasing the capacitance of the device. <h3>Applications</h3>M39003/01-2409 series of tantalum capacitors are designed to meet the needs of applications in the military, aerospace, and high-temperature environments. The series offers three major design capabilities, namely a wide operating temperature range of -55℃ to +125℃, excellent voltage regulation capability, and low ESR (Equivalent Series Resistance).The series is ideal for high-temperature applications, as the internal structure of the capacitor prevents oxidation on the contacts and the dielectric layer, thereby improving the device’s capacitance and reliability. The device also offers excellent voltage regulation capability, which is mainly attributed to the small plates, as well as reduced ESR, enabling the device to maintain a reasonable current level even when the voltage is increased. These properties make the M39003/01-2409 series suitable for use in military and aerospace products where performances have to be optimized under high-temperature and extreme voltage conditions. The series is also suitable for high-density circuits, as the device is available in a range of small case sizes (as small as 2.5×2.5mm). The device also offers low case inductance levels, which contributes to the reduction of ESR, making it ideal for critical circuits. In summary, the M39003/01-2409 series of tantalum capacitors is specifically designed for critical application fields such as military, high-temperature, and density-critical applications. The device is known for its excellent voltage regulation capability, wide operating temperature range and low ESR (Equivalent Series Resistance). Additionally, the device is also available in small case sizes, making it suitable for high-density circuits.

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