UPM2W100MHD1TN Capacitors

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Aluminum electrolytic capacitors, or simply called electrolytic capacitors, are widely used in various electronic applications due to their large capacitance in small size. The UPM2W100MHD1TN is an electrolytic capacitor produced by Murata, a Japanese components manufacturer. It is categorised as a miniaturized high-temperature electrolytic capacitor and is one of the most popular capacitors on the market.

The UPM2W100MHD1TN capacitor is commonly used in telecommunications, consumer electronics, and automotive electronics applications. It is widely applied in surge absorption, peak load current support, anti-interference in input and output signal circuits, and frequency or voltage conversion circuits. The UPM2W100MHD1TN capacitor is also utilized for smoothing and power-supply filtering, timing circuits, signal buffering, and digital logic power-supply circuits.

The working principle of an electrolytic capacitor is based on the physical process of electrolysis. In this process, an electrolyte solution is separated into positive and negative ions by electric current. This causes a metallic film to form on the opposite surfaces of an electrolytic capacitor’s plates. The positive metallic film made out of a solid electrolyte acts as the capacitor’s anode, while the negative film acts as the capacitor’s cathode.

When a voltage is applied, charge carriers accumulate in the gap between the metallic film of the anode and cathode plates. This causes the anode plate to accumulate negative charges while the cathode plate accumulates positive charges. The total amount of charge that can be stored on the capacitor’s anode and cathode plates is determined by the capacitance. Therefore, the capacitance of the UPM2W100MHD1TN capacitor can be adjusted by varying the size and the amount of its plates.

In order to be able to withstand higher working voltages, the anode and cathode of an electrolytic capacitor are separated by a diaphragm. This diaphragm is made of a highly porous material so that ions can pass through it easily. The porous diaphragm acts as a barrier between the two sides, allowing charge carriers to pass through but preventing direct leakage current.

The UPM2W100MHD1TN capacitor has a dielectric temperature rating of -30 to 105℃, a capacitance tolerance of ±20%, and a leakage current of maximum 0.2µA (0.05µA typical). All of these features enable it to be used in high-temperature and high-voltage applications.

In summary, the UPM2W100MHD1TN capacitor is an aluminum electrolytic capacitor that is widely used in telecommunications, consumer electronics, and automotive electronics applications. Its working principle is based on the physical process of electrolysis, forming a metallic film on the capacitor’s plates which allows charge carriers to pass through. The dielectric temperature rating, capacitance tolerance, and leakage current allow the capacitor to be used in high-temperature and high-voltage applications.

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