SMBG4737E3/TR13

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Diodes - Zener - Single

The SMBG4737E3/TR13 is a single zener diode, typically used as a voltage regulator. It is a Silicon Epitaxial Planar Zener Diode with a built-in resistor that makes devices easier to mount on printed circuit boards.

Application fields

A Zener diode operates in the reverse-breakdown region of operation. The SMBG4737E3/TR13 is mainly utilized as a stabilizer, a voltage regulator and an overvoltage protector.

• As a voltage regulator: It is capable of maintaining a stable voltage output regardless of the magnitude of varying input voltage.
• As an overvoltage protector: This diode can protect sensitive electronic components from getting damaged by sudden surges in current.
• As a stabilizer: It is useful in sensitive electronic applications where current fluctuations may damage components.

Working principle

A Zener diode is an active electronic component that controls voltage. The SMBG4737E3/TR13 is specially designed to allow avalanche breakdown to occur at a specific reverse voltage, called the Zener voltage (VZ). This breakdown effect occurs when the diode reaches a certain reverse voltage, causing a large amount of current to flow through the diode. The resulting current can be used to regulate the voltage at the output, thus providing stabilizing power.

In operation, the SMBG4737E3/TR13 can be connected in series with a load with the anode connected to the power supply and the cathode connected to the load. This diode can also be connected in parallel to the load, with the cathode connected to the power supply and the anode connected to the load. In either case, when reverse voltage is applied, the diode will enter the breakdown region and allow a large current to pass through. This current is used to regulate the output voltage to the desired level.

Conclusion

The SMBG4737E3/TR13 is a highly specialized single Zener diode suitable for a variety of electronic applications. It is used primarily to provide a regulated output voltage, regardless of the magnitude of varying input voltage. It can also be used to protect sensitive electronic components from damage by sudden surges of current. The SMBG4737E3/TR13 can be easily connected in series or in parallel with the load, and it uses the avalanche breakdown region to regulate output voltage.

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