M39003/09-0284

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Tantalum capacitors are a type of electrolytic capacitor that are notably used for their superior frequency and temperature characteristics. First developed in the late-1920s, Tantalum capacitors are typically polarized, meaning that they require a correct application of positive and negative voltage to function. The M39003/09-0284 is a miniaturized, surface mounted, tantulum capacitor with a capacitance of 4.7 μF and rated working voltage of 16V.

The application fields of the M39003/09-0284 are typically in low-frequency control circuits, such as automotive engine control systems, solenoid valves, fuel injectors, power relays and brake systems. The miniature size of the capacitor makes it ideal for use in tight spaces with limited space. Additionally, these capacitors can be used in multiple parallel, allowing for higher capacitance values.

The M39003/09-0284 consists of two electrodes that are separated by an electrolytic dielectric. The electrode closest the dielectric is made of tantalum, and the other, normally the negative electrode, is composed of aluminium. A voltage is applied to the two electrodes, creating an electrostatic field across the dielectric. As a result, a current passes between the two electrodes, charging the capacitor. The dielectric material determines the amount of capacitance that is created when voltage is applied.

The M39003/09-0284 is relatively unique in that it offers a very wide temperature range of -55°C to +125°C with no negative effects. This makes it ideal for use in especially hot and cold conditions, as the temperature exerted on the device has relatively little effect on its performance or lifespan. The capacitor also has very low ESR and ESL, which further increases its performance in high-frequency switching applications. The M39003/09-0284 is RoHS compliant and rated for 250V disc ceramic, although the voltage rating should not be exceeded.

The M39003/09-0284 is also a low impedance device, meaning that it can handle higher frequencies with less voltage loss. This makes it ideal for use in radio frequency (RF) applications, where low inductance and low ESR are essential for optimal performance.The capacitor can also be used in high-voltage applications, such as in alternators and AC motor drives. However, they should never be used in high-voltage circuits as they can be damaged due to the increased voltage.

In conclusion, the M39003/09-0284 is a miniature, surface mounted, tantalum capacitor with excellent performance characteristics such as wide temperature range, low ESR and ESL, and high performance in RF applications. It is ideal for use in automotive control systems, solenoid valves, fuel injectors, power relays and brake systems. The voltage rating should not be exceeded, and the capacitor should not be used in high-voltage applications.

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