SMBJ5936A/TR13

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SMBJ5936A/TR13 Application Field and Working Principle

Diodes - Zener - Single, also known as voltage regulated diodes, are components that can maintain a constant voltage output, irrespective of the changes in the current or voltage of the input. The SMBJ5936A/TR13 Diode, a high power surface mount voltage regulator diode, is an example of such a component. It has a power dissipation of 1.5W and an operating junction temperature range of -55 to +125°C.

This SMBJ5936A/TR13 Diode is a single 78V Zener Diode that is a critical component of many power supply designs and circuit protection applications. Its Zener breakdown voltage has a tolerance of ±5%, with maximum reverse leakage current at its rated voltage of 1mA. It features an ESD rating of Class 3 service at 1500V for human body model.

The diode works by passing conventional current in its forward direction and voltage regulation when passing current in reverse direction. Forward biased current from the input side will be passing through the diode with a reduced voltage drop. This is ensured by the junction of the diode. In the reverse direction, when a voltage higher than the diode’s rated voltage is applied, the diode will enter a breakdown region as known as Zener Breakdown. In this Zener Breakdown region, a small amount of reverse current flows, and the voltage across the diode will be clamped to its Zener Voltage.

The SMBJ5936A/TR13 Zener Diode has a wide range of applications. It is widely used in wide range of DC power supply system such as AC/DC converters, DC power supply, and regulated DC power supplies. It is also used as a transient suppressor device, clamping device to protect against voltage surges, voltage regulator device, speed regulation circuitry in motor control systems, surge Current Clamping Device, Voltage Reference circuits, audio amplifier circuits and more.

The Zener Diode obtained its name from Clarence Zener who discovered the Zener Breakdown effect. This effect is used in the Zener Diode, making it possible for the diode to maintain reverse breakdown when it exceeds its rated voltage, the diode will then continue to regulate the voltage in spite of the constant change in current.

In summary, the SMBJ5936A/TR13 Diode is a 78V high power surface mount voltage regulator diode which is used in a wide range of DC power supply systems and circuit protection applications. This Zener Diode is named after Clarence Zener who discovered the Zener Breakdown effect which is used to regulate the voltage in spite of the constant changes in current. The Zener Diode can maintain a constant voltage output, irrespective of the changes in the input current or voltage.

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