SMBJ4763AE3/TR13

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The SMBJ4763AE3/TR13 is a single, Zener diode. A Zener diode is a type of diode that works in reverse bias and operates at a voltage below its breakdown voltage, but does not become permanently damaged even when subjected to much higher voltages. This makes it popular for applications such as voltage regulation, overvoltage protection, reverse-flow protection, surge suppression, and voltage clamping.

Specifically, the SMBJ4763AE3/TR13 has a Zener voltage of 4.7V and a nominal Zener current of 250mA. This makes it suitable for a variety of applications, from consumer electronics to automotive circuitry and power supplies.

When applying a current through the diode in the reverse direction, it will be able to hold a fixed voltage of approximately 4.7V. This is because, when the reverse bias is lower than the breakdown voltage, the depletion region of the diode begins to widen and current starts to flow through it. This process effectively creates a voltage divider across the resistance of the diode, so the output voltage will remain roughly constant.

The SMBJ4763AE3/TR13 also features immunity to electrostatic discharge, making it well-suited for protecting sensitive components from voltage overspikes. This is an important feature for circuits that operate in high-risk environmental conditions, such as factory settings with high levels of electromagnetic interference.

The SMBJ4763AE3/TR13 also features a low peak pulse power rating of 500W, with a maximum operating temperature of +175°C. This makes it well-suited for high-temperature applications, such as power supplies and motor controls.

In conclusion, the SMBJ4763AE3/TR13 is a single Zener diode designed for applications that require a fixed voltage of approximately 4.7V and protection from electrostatic discharge. It is well-suited for use in a variety of settings ranging from consumer electronics to industrial power supplies and automotive circuitry. It has an exceptionally high peak pulse power rating and prolonged immunity from electrostatic discharge, making it well-suited for high-risk environments.

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