SMPZ3936B-E3/85A

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SMPZ3936B-E3/85A is a type of diode in the classification of Diodes - Zener - Single. It is widely used for various applications due to its advantages in terms of reliability, excellent performance, and low cost. In this article, we will discuss the application field and working principle of SMPZ3936B-E3/85A.

The SMPZ3936B-E3/85A is a uni-polar component with its cathode connected to the device body and an anode to the component’s tip. It is a high speed and fast switching Zener diode with a Repetitive Reverse Voltage rating of up to 85V and an average forward current of 396mA. The most common application of this device is in voltage regulating and ESD circuit applications for protection and prevention of damage to sensitive devices.

The SMPZ3936B-E3/85A works by allowing current to flow in one direction when the voltage is positive, and in the other direction when the voltage is negative. Thus, the device can help to protect against spikes and surges that could potentially damage the connected device. Additionally, the Zener diode helps regulate voltage so that the connected device receives the correct voltage. This is especially important in applications that require a steady, reliable voltage.

Aside from the protection and voltage regulation functions, the SMPZ3936B-E3/85A is also useful in a wide range of other applications. It is used in switching power supplies for controlling and limiting the voltage levels, in active filters for filtering unwanted signals, and in other applications such as rectification and signal conditioning. Additionally, the SMPZ3936B-E3/85A offers very fast switching times, making it suitable for applications involving high speed signal transmission and protection.

The SMPZ3936B-E3/85A works using the Zener breakdown principle, which is a phenomenon in which an electric current passes through a diode when the voltage across the device exceeds the breakdown voltage of the device. Specifically, the device allows only one type of current flow depending on the polarity of the voltage across the device - either forward (anode to cathode) or reverse (cathode to anode). When forward biasing is applied, the current is passed normally and it follows Ohm’s law. When reverse biasing is applied, the current increases exponentially until it reaches the breakdown voltage, at which point it will reach a saturation current.

In summary, the SMPZ3936B-E3/85A is a high speed, reliable, and low-cost Zener diode with a Repetitive Reverse Voltage rating of up to 85V and an average forward current of 396mA. It is suitable for both protection and voltage regulation applications, as well as for many other applications. The device works using the Zener breakdown principle, making it capable of detecting and controlling the voltage levels to ensure optimal performance on the connected device.

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