SML4742A-E3/61

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Diodes come in a variety of shapes and sizes and are an integral part of any electronic system. The SML4742A-E3/61 Zener diode is a particular type of diode that has a wide variety of applications. Understanding this diode\'s characteristics and mode of operation is necessary to selecting the appropriate device for an application.

The SML4742A-E3/61 is a three-terminal, 500mW Zener diode. It has a maximum voltage rating of 6.1V, a forward voltage drop of 1V for currents up to 200mA, a maximum reverse leakage current of 10μA, and an operating temperature range of -5 to 65°C. Its three terminals are the anode, cathode and the S numerator.

The SML4742A-E3/61 can be used in a range of applications such as voltage regulators, surge suppressors, and stabilizers. As a voltage regulator, the device is used to limit the output voltage of a circuit. It is connected in series with the source so that the output voltage is clamped at the breakdown voltage of the diode. This prevents excessive currents from flowing into the load and damaging it. It can also be used as a surge suppressor to reduce high voltage spikes that can damage sensitive electronic components. Finally, it can be used as a voltage stabilizer to maintain a constant voltage in a circuit, regardless of changes in the input voltage.

In addition to its various applications, the SML4742A-E3/61 also has a distinct working principle. It works on the principle of avalanche breakdown. This occurs when the reverse bias voltage across the junction reaches a certain value, known as the breakdown voltage. At this point, the diode undergoes an abrupt increase in voltage drop and allows a rapid rise in current through it, resulting in an avalanche of electrons at the junction known as the “Zener Breakdown”. The breakdown voltage is determined by the doping level and junction thickness of the diode, and is typically 6.1V for this type of device.

The SML4742A-E3/61 Zener diode is a versatile three-terminal device with a wide range of applications including voltage regulator, surge suppressor and voltage stabilizer. It operates on the principle of avalanche breakdown and is rated for a maximum voltage of 6.1V, a forward voltage drop of 1V and a reverse leakage current of 10μA. These properties make it an ideal choice for various electronic systems.

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