SMBG4747/TR13

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	20V
Tolerance:	±10%
Power - Max:	2W
Impedance (Max) (Zzt):	22 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 15.2V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-215AA, SMB Gull Wing
Supplier Device Package:	SMBG (DO-215AA)
Base Part Number:	SMBG4747

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Introduction to SMBG4747/TR13

The SMBG4747/TR13 is a type of diode, commonly known as a Zener diode. It is a single diode that works to regulate a voltage source. Diodes are electronic components that act as a one-way conductor for current: allowing current to move in one direction, and blocking its movement in the opposite direction. The diode can be thought of as a switch, where its relationship with voltage is analogous to the relationship between a switch and a light bulb. If a switch is "on," electricity can flow through it and the light bulb will turn on. If the switch is "off," the light bulb will not be lit. Similarly, if the voltage is greater than a certain level, the diode will be in its "on" state, allowing current to flow; if the voltage is below that level, the diode will be in its "off" state, and will not permit current to flow.

Application of SMBG4747/TR13

The SMBG4747/TR13 diode is commonly used in voltage regulation applications. It is used to stabilize the output voltage from a power supply, so that it remains constant regardless of the load put upon it or the input voltage. It is also used in electronic circuits to protect against transient voltage spikes, it can help to limit or control the current in a circuit, and it can act as a DC-DC converter between two different voltage levels.

Working Principle of SMBG4747/TR13

The working principle of the SMBG4747/TR13 diode is based on the behavior of a Zener diode. The most important characteristic of a Zener diode is a region known as the “Zener breakdown” which occurs in a region of the diode\'s voltage-current (I-V) characteristics. When the breakdown region is reached, the Zener diode changes its behavior and instead of reducing current as the voltage increases, it suddenly allows a large amount of current to flow. This sudden increase in current produces a large voltage drop across the diode, resulting in a much more stable voltage output.

Conclusion

The SMBG4747/TR13 diode is a single diode that belongs to the Zener diode category. It is often used in voltage regulation applications, to stabilize the output of a power supply and protect the circuit from transient voltage spikes. It also helps to control the current in a circuit and can act as a DC-DC converter between two different voltage levels. The diode is able to regulate voltage due to the presence of a Zener breakdown region in its I-V characteristics, where it will suddenly allow a large amount of current to flow, resulting in a much more stable voltage output.

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