893D336X96R3C2TE3

Tantalum Capacitors

Tantalum capacitors are commonly used passive components in electronic circuits; their most frequently used type is the solid electrolytic capacitor. Capacitors are elements of an electrical system that store electrical energy temporarily. In a primitive circuit, energy flows in an open loop circuit; but in a capacitor, it continues to flow, even in a closed loop circuit.

The 893D336X96R3C2TE3 capacitor is a type of tantalum capacitor. It is usually used in applications such as hybrid computer circuit boards, power supplies, motor starters, buffer amplifiers, DC-DC converters, and resonant circuits. In addition, they are used to filter and suppress electrical noise in circuits.

Working Principle

Tantalum capacitors are constructed using two flat-plate electrodes, one of which is immersed in a liquid electrolyte, enclosed in a small housing. The electrolyte is an anode, the capacitor\'s positively charged plate, and the electrolyte is a cathode, the capacitor\'s negatively charged plate. The plate that is immersed in the liquid electrolyte will draw the electricity from the electrolyte and act as a filter for the electric charge.

When the capacitor is charged, the electric current passes through the electrolyte and directly to the anode, charging the capacitor. When a voltage is then applied, the electrons flow through the capacitor\'s dielectric material (which acts as an insulator) and into the cathode. This flow of electrons discharges the capacitor, at a rate determined by the size and type of material used as the dielectric.

Tantalum capacitors are versatile and can be used in a wide range of applications. They can be found in small electronic devices such as cell phones and MP3 players, as well as larger devices, such as computers and medical equipment.

Types of Tantalum Capacitors

Tantalum capacitors come in two main types, organic and electrolytic. Organic tantalum capacitors are typically constructed with a solid dielectric rather than a liquid electrolyte, allowing them to operate at higher temperatures and reduce the risk of electrolyte leakage. The two halves of the capacitor are metalized or aluminum-laminated. Electrolytic capacitors are constructed with a liquid electrolyte and two electrolytic plates, allowing them to withstand higher voltages and temperatures.

Tantalum capacitors can also be categorized based on their construction. These types include solid tantalum capacitors, surface-mount tantalum capacitors, molded tantalum capacitors, hybrid tantalum capacitors, and wet tantalum capacitors.

Advantages of Tantalum Capacitors

Tantalum capacitors offer a number of advantages over other types of capacitors. First, they are highly resistant to changes in temperature, and are capable of operating at temperatures up to 125°C. Second, they have a high volumetric efficiency and cost-effectiveness, making them ideal for applications that require a large amount of capacitance in a small amount of space. Third, they can withstand high voltages and are well-suited for power supplies, amplifiers, and other high-voltage circuits.

In addition, tantalum capacitors have low equivalent series resistance (ESR), high self-inductance, and low equivalent series inductance (ESL). This helps ensure that they maintain constant capacitance over a wide range of frequencies, making them well-suited for use in filters and other circuits that require precise tuning.

Disadvantages of Tantalum Capacitors

Tantalum capacitors also have their drawbacks. They have low capacitance compared to some other types of capacitors, and they are not tolerant of reverse voltage. In addition, the liquid electrolyte used in electrolytic capacitors is corrosive, and can cause corrosion of the metal casing and eventually, failure of the capacitor. It is also difficult to repair tantalum capacitors, as the electrodes and electrolyte used are highly specialized.