TCP0J685M8R Capacitors

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Tantalum Capacitors

Tantalum capacitors are electrolytic capacitors with a tantalum oxide anode and an electrolyte made of a mixture of manganese dioxide and other compounds. The 3 letter e-code TC denotes a tantalum electrolytic capacitor. The first letter denotes its polarity, T for a polarised capacitor. The second and third letters denote the encapsulation, C indicates that the capacitor is a so-called molded case.The must popular TC codes are TCN, TCS, TCR, TCD, TCP and TCB. Commonly used tantalum capacitors include TCN, TCS, TCR and TCB.

In the TCN series, TCN-85M8R is a high impedance, conformal coated solid tantalum capacitor. This series features capacitors with an E-coat featuring a leakage current of under 1 μA. It has a capacitance range of 4.7 μF to 220 μF, a voltage range of 2-35V and an operating temperature range of -55 °C to +125 °C. The ESR of this series is low and can reach 0.001 ohm.

TCN-85M8R Application Field and Working Principle

The TCN-85M8R series of tantalum capacitors is widely used in many electrical and electronic circuits due to its small size and high reliability. Its applications include voltage conversion and filtering in computing, communications and automotive electronics, as well as dc-to-dc converters and off-line switching applications. It is also used to replace pervious generartion\'s components in emerging digital and RF communications schemes.

The working principle of the TCN-85M8R series of tantalum capacitors involves the formation of an oxide layer on the tantalum anode. This oxide layer acts as a dielectric insulation between the anode and the cathode, and stores an electrical charge. The electric charge is held across the dielectric interface, enabling the capacitor to store and discharge current. As current flows through the capacitor, the charge stored on the capacitor\'s plates is removed, allowing current to flow.

The key performance characteristics of TCN-85M8R capacitors include low ESR, high temperature performance, and long life under harsh environments. The ESR of the TCN-85M8R series of tantalum capacitors varies from 0.001 ohms to 0.030 ohms, decreasing with increasing capacitance. This ESR is much lower than that of other types of capacitors, leading to improved reliability. The capacitors in the series also feature an improved temperature performance, with a maximum operating temperature range of -55°C to +125°C, and a maximum temperature range of -55°C to +150°C.

The TCN-85M8R series of tantalum capacitors also have a long shelf life and an extended operating life even under harsh conditions. The series has an expected shelf life of up to 15 years, and an expected operating life of up to 50,000 hours. This makes it suitable for applications that require long-term reliability, such as power management and portable electronics.

In conclusion, the TCN-85M8R series of tantalum capacitors are widey used in many electrical and electronic applications due to its small, compact size and high reliability. They have a low ESR, a wide temperature range, and a long shelf life and operating life. This makes them the ideal choice for applications that require long life and reliability.

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