SMBJ4761E3/TR13

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	75V
Tolerance:	±10%
Power - Max:	2W
Impedance (Max) (Zzt):	175 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 56V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	DO-214AA, SMB
Supplier Device Package:	SMBJ (DO-214AA)
Base Part Number:	SMBJ4761

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SMBJ4761E3/TR13 – Zener Single Diode

Application Field and Working Principle

The SMBJ4761E3/TR13 is a zener single diode that manufactured in an ultra-small, miniature Surface Mount package. It has a low profile design that allows it to fit in tight spaces efficiently while still delivering top-notch performance. This diode is suitable for use in a wide range of power supply and general circuit applications, including protection circuits, polarity protection, and voltage-balancing circuits. It meets all the requirements of the IEEE standard and provides reliability and superior performance.

Overview of Working Principle

The working principle of the SMBJ4761E3/TR13 is based on the fact that it is a Zener diode, a type of diode that is specifically designed to regulate voltage and electrical current when it is subjected to reverse bias. A reverse bias is when the positive terminal of a source of electricity is connected to the diode\'s cathode and the negative terminal of the source is connected to the diode\'s anode. This reverse biasing creates a large reverse voltage across the diode resulting in a strong electric field which causes electrons to move in the reverse direction. The diode is designed so that when the reverse voltage reaches a certain level (the Zener voltage of the diode) a “Zener breakdown” occurs in the depletion region. The Zener breakdown is caused by the heavy ionization of the electrons in the depletion region which leads to a rapid increase in the current, resulting in a large current flow through the diode and a regulated voltage across it. This regulated voltage is determined by the breakdown level of the diode and is known as the Zener voltage.

Application Fields

The SMBJ4761E3/TR13 is used in various power supply and general circuit applications such as: • Clipping circuits, • Clamped circuits, • Voltage-balancing circuits, • Polarity protection, • Protection circuits, • Regulators and • Inverters.This diode is particularly popular in low voltage and medium power applications, especially in the automotive industry because of its robust and reliable performance. As an example, it is often used in fuel pumps, safety and convenience systems, engine control systems, and emission control systems. In addition, it is also used in consumer electronics and audio-visual systems, where its miniature size and low-profile design make it ideally suited for space-constrained and board-constrained applications.

Conclusion

The SMBJ4761E3/TR13 is a zener single diode that provides reliable and superior performance in a variety of power supply and general circuit applications. It is an ideal solution for low voltage and medium power applications, especially in the automotive industry, and its miniature size and low-profile design make it ideal for space-constrained and board-constrained applications.

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