M39003/01-7283/HSD

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Tantalum Capacitors

Tantalum capacitors, also known as tantalum electrolytic capacitors, are surface-mounted capacitors composed of a tantalum anode surrounded by an electrolyte liquid, along with a solid-state capacitor etched from a metal coating. These capacitors are unique due to their high capacitance density in a relatively small package. Commonly utilized for pulsed-wave applications, such as radio transmitters, audio amplifiers, and pulse generators, their capacitance range can be anywhere from between several picofarads to several hundred microfarads.

The capacitance of a tantalum capacitor is highly dependent on applied voltage. Therefore, they are suitable for applications where voltage is constantly increasing or decreasing. The maximum voltage rating of a given capacitor can differ greatly, depending on the application and the capacitor\'s overall design. Most tantalum electrolytic capacitors are rated at 4.5V or 6.3V, and come in various sizes such as 1206, 0603, 0402, 1812, 2220.

M39003/01-7283/HSD components are specific to a type of surface-mount tantalum capacitor. These components carry a maximum voltage rating of 8.3V and a capacitance range of 10µF to 470µF with a 5% tolerance. Their temperature range is – 55° to + 155°C; acceptable working voltage is 4V to 6V; and the size of the component is 1210-case, allowing it to fit into more tightly packed applications. With an ESR as low as 3mΩ, these capacitors offer higher energy density in comparison to other surface mount tantalum capacitors.

The operation of a tantalum capacitor is essentially based on the same principles as those of other capacitors. However, since this capacitor consists of a liquid electrolyte rather than ceramic dielectric, it will contain a second electrode that is surrounded by the electrolyte. The dual electrodes of a tantalum capacitor are called an anode and a cathode. The anode is typically made of a powdered tantalum mixed with manganese dioxide, while the cathode is typically composed of material such as aluminum. The capacitance of the capacitor is established by applying an AC or DC voltage, which causes an oxalic acid layer to form on the anode, and draws electrons towards the cathode. Thus, a transfer of electrical charge is established between the two electrodes that creates an impedance that will affect the overall capacitance.

Tantalum capacitors offer an array of benefits, which have made these components a popular choice for many embedded and control applications. Their small size makes them ideal for tight fitting designs, giving them the capability to exist in more compact products. Additionally, their high capacitance density, low ESR, and excellent frequency characteristics make them an ideal choice for applications requiring increased performance and stability.

The M39003/01-7283/HSD component is an excellent choice for a variety of applications requiring a high-reliability tantalum capacitor. Offering a higher energy density, in comparison to other SMD tantalum capacitors, this component is suitable for a vast array of applications. Furthermore, the stringent quality control entered into the production process of M39003/01-7283/HSD components ensures that they have consistently reliable performance and long lifespans.

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