SMBJ4750C/TR13

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The SMBJ4750C/TR13 diode is a single Zener diode meant for application specific circuit protection and voltage clamping. This diode is designed to provide 4.7 volts with a minimum breakdown voltage of 5.1 volts, making it suitable for various types of circuitry. Additionally, the SMBJ4750C/TR13 is capable of dissipating a maximum power of 62.5mW and can handle transients up to 533mA.

The SMBJ4750C/TR13 is suitable for a variety of applications, such as reset circuitry, surge protection, or ESD protection. Its fast response time and ability to protect against voltage transients make it ideal for protecting high-speed digital circuits. Additionally, its low power consumption make it highly suitable for battery-powered devices, making it essential when considering portability.

The internal construction of a Zener diode is what makes it so unique. A Zener diode is essentially a p-n junction diode that has been reverse-biased, with a separate layer of silicon oxide insulation above the junction. This insulation protects the p-n junction from mechanical damage, while also stabilizing the diode\'s breakdown voltage. When the diode’s reverse-bias voltage reaches the value of the breakdown voltage, an electrical avalanche occurs, which in turn creates a conductive channel across the diode’s junction, allowing current to flow from cathode to anode.

The SMBJ4750C/TR13 also features guard ring construction, which can reduce the rate of tunneling breakdown, decrease capacitance, and increase the clamping voltage of the diode. This guard ring construction works by blocking a small part of the junction area from breakdown, increasing the forward bias required for a breakdown surge to occur. This increases the breakdown voltage of the diode, making it suitable for handling higher voltages.

In summary, the SMBJ4750C/TR13 single Zener diode is designed to provide 4.7 volts of voltage protection along with fast response times and low power consumption. With its high breakdown voltages and increased clamping voltage, this diode is ideal for voltage protection in a variety of circuit designs, such as reset circuitry, surge protection, and ESD protection. Its guard ring construction provides added protection, making it a great choice for protecting digital circuits and any device requiring portability.

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