TH3A474M025F8500

Tantalum capacitors (also referred to as tantalum electrolytic capacitors) are SMD capacitors that are suitable for use in demanding applications where more traditional electrolytic capacitors are not ideal. The tantalum capacitor, also known as tantalum electrolytic capacitor, is a kind of solid capacitor with tantalum as anode and other material as cathode. Generally, the dielectric between two electrodes is made of deposit oxides or polymer materials. Among all electronic components, press the volume of many times higher than normal components, with small structure and low equivalents, connecting it to the circuit and completing the circuit, and become a good help of electrical power.

The TH3A474M025F8500 is a Mmax B45 tantalum capacitor designed for high reliability and high stability. It has a voltage rating of 25 volts and capacitance of 47μF ± 20%. It is designed for use in hostile environments and meets the qualifications of AEC-Q200, REACH and RoHS requirements. Its operating temperature range is -55°C to 125°C, with a maximum ESR of 0.90 Ohm.

A tantalum capacitor offers several unique benefits compared to other types of capacitor. First, tantalum casings are made of a dense, corrosion-resistant metal, which makes them less susceptible to damage than other types of capacitors. Second, the electrolyte used in tantalum capacitors is a non-corrosive gel-type liquid, which has a lower failure rate than that of other types of capacitors. Third, the dielectric used in tantalum capacitors has the highest capacitance-to-volume ratio of all dielectric materials.

The TH3A474M025F8500 Tantalum Capacitor is a general-purpose device (Type A) intended for use in applications that require high reliability, such as aviation, space, and critically demanding industrial applications. The capacitor can be used as a filter capacitor in switch-mode power supplies and battery-powered devices, as well as other applications such as communication, electron tube control, pulse power supply and waveform generation.

The working principle of a tantalum capacitor is based on an electrochemical process whereby the surface of the anode is coated with an oxide layer, which acts as a “dielectric”. This dielectric forms an electric field that is proportional to the applied voltage, resulting in a capacitance value. When a positive voltage is applied to the anode, a current flows through the capacitor, charging the system from the anode to the cathode. During charging, electrons are pushed from one surface of the oxide layer to the other resulting in the formation of a charge. When the voltage is suddenly removed, the oxide acts as an insulator, preventing the electron flow and hence, preserving the stored energy.

In conclusion, the TH3A474M025F8500 Tantalum Capacitor is a high performance product designed for critical applications. With its low ESR, high reliability and high capacitance-to-volume ratio, it is perfect for high stability applications, and is suitable for use in harsh environments. Its overriding characteristics, in combination with its unique working principle, make it an ideal choice for many applications.