Series:	--
Part Status:	Active
Voltage - Zener (Nom) (Vz):	10V
Tolerance:	±5%
Power - Max:	1.25W
Impedance (Max) (Zzt):	7 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 7.6V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-214AC, SMA
Supplier Device Package:	DO-214AC (SMA)

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1PGSMA4740 R3G Application Field and Working Principle

Overview

1PGSMA4740 R3G is an avalanche-capable 24V Zener diode, designed to reduce overvoltage voltage spikes and regulate voltage in many applications. This device belongs to the category of single Zener diodes and can be used in a wide range of applications, including USB power supplies, medical systems, and automotive electronics. In this article, we\'ll give an overview of 1PGSMA 4740 R3G application field and working principle.

Application Field

1PGSMA4740 R3G is designed as a robust power component, making it suitable for industrial, automotive, and medical applications. This device can be used in USB power supplies that use the USB 3.1 standard, and can reduce voltage spikes resulting from plugging, unplugging, or connecting into the USB 3.1 bus.This diode is also an ideal choice for automotive electronics because of its low on-state resistances. 1PGSMA4740 R3G is able to protect automotive systems by effectively regulating voltage spikes during high-current and high-voltage applications.In addition, this device is suitable for medical systems, such as radiography machines, and can reduce any overvoltage voltage spikes that might cause injury in the short term.

Working Principle

The 1PGSMA4740 R3G diode is a 24V avalanche diode, meaning it uses reverse voltage between its anode and cathode pins to create an avalanche effect in the diode. This avalanche effect causes electrons to avalanche across the diode junction, creating a current that is strong enough to shunt any overvoltage.In other words, the purpose of the avalanche effect is to create an electrical breakdown of the diode, resulting in a large current flow through it. This current flow is able to reduce any overvoltage spikes from entering the system and protecting the internal components from any potential damage.

Conclusion

In conclusion, 1PGSMA 4740 R3G is a single Zener diode ideal for a wide range of applications, specifically for USB 3.1 power supplies and automotive electronics. This diode is able to protect the system by creating an avalanche effect, resulting in a large current that is able to reduce any potential overvoltage voltage spikes from entering the system.

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