M39003/01-5736H

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Tantalum capacitors are a type of electrolytic capacitor, and in comparison to other types, offer some distinct advantages. The M39003/01-5736H is an axial-lead surface mount tantalum capacitor. Capable of handling 2.5V DC with a capacitance of 100uF, this capacitor is considered small and manageable, making it ideal for applications with limited space. Due to their unique construction, tantalum capacitors ae often found in military, automotive, and other applications that require a relatively high temperature component.

Uses and Applications

The M39003/01-5736H is mainly used in military and aerospace applications. Principally, this capacitor is employed in these applications because of its high temperature capabilities, allowing it to withstand extreme temperatures and intense vibration. It is also often found in communications equipment, such as satellite radio components and two-way radios. In addition, it is used in portable electronic devices, such as cell phones, cameras, and computers.

Due to its smaller size and lower profile, the M39003/01-5736H is an ideal capacitor choice for use in medical equipment. It is commonly used for filtering and smoothing purposes in medical diagnostic equipment, portable ECGs, and hearing aids. Furthermore, because of its long-term reliability, it can be found in heavy-duty medical apparatus, such as X-ray machines and automatic external defibrillators.

Working Principle

The M39003/01-5736H takes advantage of a unique property of tantalum metal by using a layer of ceramic anodic oxide which forms on the metal surface and acts as an insulator. This is referred to as the capacitor’s dielectric layer. The layer appears as a tan substance, which gives the capacitor its name.

The capacitor is constructed of an anode which is formed by the powder tantalum, and a cathode which is formed by a slurry of either manganese dioxide or, in the case of axial tantalum capacitors such as the M39003/01-5736H, conductive polymer. The anode is connected to one lead, and the cathode is connected to the other lead. Current flows through the capacitor when it is charged, and the oxide layer forms when the capacitor is discharged.

The charging and discharging of the M39003/01-5736H is controlled by the applied voltage. During discharge, the oxide layer dissipates and allows the current to flow. When it is charged, the voltage is increased and the dielectric layer reforms, preventing the current from flowing. This process is repeated as long as an external voltage supply is present.

Advantages and Disadvantages of Tantalum Capacitors

Tantalum capacitors, and the M39003/01-5736H in particular, have several advantages over conventional types. One of the most notable is their small size. The oxide layer is extremely thin, making the capacitors compact in comparison to other types. This allows them to be used in space-limited applications without sacrificing performance.

Tantalum capacitors are also known for their high-temperature capabilities, making them ideal for use in automotive, military, and aerospace applications. Additionally, they have a long lifespan and are more reliable than other types of capacitors, which makes them suitable for use in medical equipment.

Despite their advantages, there are some drawbacks to using them. Tantalum capacitors are more expensive than conventional electrolytic capacitors, and their high-temperature capabilities can make them prone to failure if not used correctly. Furthermore, they are sensitive to static discharge, so proper handling precautions must be taken to prevent accidental damage.

Conclusion

The M39003/01-5736H is a small, axial-lead surface mount tantalum capacitor. Capable of handling up to 2.5V DC with a capacitance of 100uF, this capacitor has a number of distinct advantages that make it an ideal choice for applications with limited space such as those found in military and aerospace systems. Furthermore, because of its long-term reliability, it is also suitable for use in medical equipment.

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