199D684X0035A7V1

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Tantalum capacitors are miniature, solid electrolytic capacitors with an anode made of sintered tantalum powder, a thin oxide layer and a solid electrolyte of manganese dioxide. Their unique features are their wide capacitance and voltage range, low internal resistance and extremely small size.

The part number 199D684X0035A7V1 is an Axial lead molded tantalum capacitor. It consists of a sintered tantalum anode and a solid manganese dioxide electrolyte. The 199D684X0035A7V1 is rated at 6.8uF and 35V. Its temperature range is -55°C to 125°C, its capacitance tolerance is ±20%. The maximum ESR at 120kHz and 25°C is 6.8 Ohms.

Tantalum capacitors have a wide range of applications, from small integrated circuits, couplers and receiving circuits, to large-scale electrical applications. For example, in power supply design, tantalum capacitors are used to filter, stabilize and smooth the output voltage, reduce ripple and other AC components of the output voltage. Tantalum capacitors can also be used to replace electrolytic capacitors in some applications.

The working principle of tantalum capacitors is based on the principle of electro-chemical reactions. When a voltage is applied across the terminals of the capacitor, a current flows, causing the anode material to ionize and form a thin dielectric layer of oxide at the anode surface. This layer of oxide acts as a dielectric material and helps store charge in the form of an electric field. The solid electrolyte, in conjunction with the underlying surface of the anode, is responsible for conduction.

The main advantage of tantalum capacitors is their small size relative to their capacitance. This allows them to be used in circuits where space is limited. In addition, they have higher ripple current rating, lower equivalent series resistance (ESR), better frequency response and higher temperature stability than electrolytic capacitors. Therefore, tantalum capacitors are widely used in consumer electronics, automobile electronics, medical equipment and aerospace electronics.

Tantalum capacitors offer many advantages over their conventional counterparts such as their small size, low tolerance for temperature changes, long service life and reliability. Their ESR is lower than that of aluminum electrolytic capacitors, allowing better filtering and high-frequency operation. In addition, their low equivalent series inductance (ESL) means that this type of capacitor is well suited for high-frequency applications. Therefore, tantalum capacitors are widely used in many applications.

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