M39003/09-0371

Tantalum capacitors are a type of electronic component that use an electrical double layer formed on the surface of a tantalum material to achieve a capacitance effect. The M39003/09-0371 is an extended temperature range, axial leaded, tantalum capacitor, designed for use in military, industrial, and commercial applications. It offers superior delivery of high frequency performance, shock and vibration resistance, environmental friendly production, and is also used in applications such as aerospace, communications, automotive, medical, and consumer electronics.

The M39003’s operating temperature range of -55°C to +125°C and storage temperature range of -55°C to +85°C makes it especially suitable for environments where thermal cycling is possible. The capacitor also features low impedance and voltage coefficient. This ensures reliable operation along with a long lasting lifespan. Additionally, this type of capacitor features a high tolerance to element variations, helping to reduce failure rates.

The M39003 consists of a spacer, wire lead, anode body, and dielectric. The spacer is made of glass-reinforced epoxy resin and is designed to provide electrical insulation and isolation between the anode body and wire lead. The wire lead has a wire cut-in process to ensure that the lead is mechanically strong and will not break at high vibration and mechanical shock. The anode body is constructed with an anode cap and a cylindrical tantalum core. The core is covered with a coating of epoxy resin and a dielectric

The M39003 operates on the principle of Electrical Double Layer Capacitance (EDLC). The layer of electrons on an anode surface forms an electrical boundary which separates between two surfaces with different electrical potentials. This causes a displacement current between the two layers. EDLC capacitance is formed with the help of an electrolyte in the capacitor, which is typically an alkali solution.

The M39003 is commonly used in military and industrial applications due to its high frequency performance and its resistance to shock and vibration. The capacitor is also used in civilian applications such as automotive, consumer electronics, medical and communications. In these applications, the capacitor is used to filter electronic signals, protect circuits from inrush currents, store energy, and also as a means of providing damping to electrical signals.

The M39003 is also known to be highly reliable and durable, as it features a built-in self-healing process that allows it to repair itself after receiving any damage. This is due to the way the dielectric layer is designed. When the cathode and anode terminals of the capacitor experience current, the electrochemical reaction creates an electrochemical double layer that prevents further damage.

The M39003 is an exceptionally reliable and versatile capacitor, making it the perfect choice for a variety of applications. It offers excellent delivery of high frequency performance, shock and vibration resistance, and environment friendly production. The capacitor also features low impedance and voltage coefficient, making it suitable for a range of applications. With its extended temperature range, high tolerance to element variations, and its built-in self-healing process, the M39003 is a reliable and long-lasting choice.