1PGSMA4742 R3G Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	12V
Tolerance:	±5%
Power - Max:	1.25W
Impedance (Max) (Zzt):	9 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 9.1V
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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1PGSMA4742 R3G - Introduction

A 1PGSMA4742 R3G is a type of single zener diode, which offers excellent characteristics and performance under a range of operating conditions. The diode offers high reverse breakdown voltage and low leakage current, in addition to a wide temperature operating range and a wide operating temperature range. It is widely used in a variety of applications including motor control, DC-DC converters, power supplies, switching devices, and communications systems.

1PGSMA4742 R3G - Applications

A 1PGSMA4742 R3G can be used in a variety of applications. It is frequently used in power electronics, automotive and industrial applications, as well as broadband communications applications. It is also an effective choice in the design of various types of switching and current sensing applications.The diode can be employed in low voltage regulators, voltage reference circuits, DC-DC converters and switching power supplies for its superior temperature stability, low leakage current and high reverse breakdown voltage. It is also commonly used in hot swap power supply designs, power factor correction circuits, motor control applications and motor drive systems, or any other applications that could benefit from a robust and efficient diode design.

1PGSMA4742 R3G - Working Principle

The working principle of a 1PGSMA4742 R3G is fairly straightforward. It is a diode which works on the same principle as other diodes. When it is forward biased, current flows from anode to cathode, and when it is reversed biased, current does not flow and the current is blocked. The diode also has a very specific reverse breakdown voltage which if exceeded, significantly increases the current flow through it. When the diode is subjected to the reverse breakdown voltage, it is important to ensure that the current flow through it is limited in order to prevent any damage to the device. This is accomplished by using a current limiting resistor, commonly known as a Zener resistor, which limits the current flow through the diode to a safe level.

Conclusion

The 1PGSMA4742 R3G is a single zener diode which offers high reverse breakdown voltage, low leakage current and wide temperature range. The diode is employed in a large range of applications, such as low voltage regulators, voltage references, DC-DC converters and switching power supplies. It is also used in motor control and switching applications. The diode uses a Zener resistor to limit current flow and prevent damage to the device.

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