199D225X0025A6C1E3

Tantalum Capacitors

Tantalum capacitors are a type of electrolytic capacitor, a component of electronic circuits. They are widely used in consumer electronics, medical equipment, military applications and aerospace systems. These capacitors are composed of a tantalum metal oxide anode, an electrolyte of alkaline or aqueous electrolyte, and a titanium case. There are two main types of tantalum capacitors; wet slab tantalyte and dry slab tantalyte, which each have different construction and working principles.

The model code 199D225X0025A6C1E3 is a wet slab tantalum capacitor. The first two characters "19" indicate the company name (in this case, Vishay), the other characters indicate capacitance, voltage and tolerance. The capacitor has an impedance of 155mΩ which is relatively low for its rated capacitance, making it useful for high frequency applications. The capacitor has an anode of tantalum metal oxide and electrolyte of a mixture of alkaline or aqueous electrolyte, such as KOH and potassium hydroxide. The anode consists of pellets of high purity powder, which is used to form a thin film of tantalum pentoxide on the anode surface. The electrostatic force holds the electrolyte between the anode and cathode, and the voltage applied to the capacitor causes the current flow. The electrolytic action causes the cathode to dissolve osomates into the electrolyte as cations, causing cations to form a thin film of pentoxide on the anode.

The VRI rating of the 199D225X0025A6C1E3 specifies the amount of voltage required to reverse the charge of the capacitor. With increased voltage, the capacitor begins to leak and eventually fails. The capacitor also has a limited life cycle of 3,500 hours. The life cycle of the capacitor is important to consider when choosing a capacitor for a particular application.

The working principle for the capacitor is simple; current flows through the anode and electrolyte, which increases the capacitance. The gap between the anode and cathode acts as an insulator, preventing current from passing through the other side. The capacitor stores energy and only releases it when a current sourced is applied. When a reverse current is applied, the capacitor begins to leak, eventually failing due to increased voltage.

In conclusion, the 199D225X0025A6C1E3 application field and working principle belong to the tantalum capacitors category. The capacitor is used in a variety of applications such as in consumer electronics, medical equipment, military applications and aerospace systems. The anode consists of pellets of high purity powder and electrolyte of a mixture of alkaline or aqueous electrolyte. The VRI rating of the capacitor specifies the amount of voltage required to reverse the charge of the capacitor. The working principle is simple; the current flows through the anode and electrolyte, which increases the capacitance, while the gap between the anode and cathode acts as an insulator preventing current from passing through the other side.