JAN1N4974DUS

Series:	Military, MIL-PRF-19500/356
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	47V
Tolerance:	±1%
Power - Max:	5W
Impedance (Max) (Zzt):	25 Ohms
Current - Reverse Leakage @ Vr:	2µA @ 35.8V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 1A
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	E-MELF
Supplier Device Package:	D-5B

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Introduction

The JAN1N4974DUS is a Zener diode widely used in a variety of electrical applications. This diode has a wide range of applications in the fields of power management, motor control, sensing, automotive, and telecommunications. The JAN1N4974DUS is a single Zener diode that can regulator voltage and device ratings of 600 mW in a SOD-123 package. This diode is advantageous for its fast switching speed, reverse leakage current, and its low temperature coefficient (TC).

Application Fields

The JAN1N4974DUS is a widely used Zener diode in various application fields. In power management, this diode is used to regulate voltage in power supplies and as surge protection in electrical voltage regulators. In motor control, it is used for designing motor drivers, speed controllers, and for noise suppression in switching regulators. This diode is also commonly used for sensing applications such as current sensing. In automotive, it is essential for providing protection against both positive and negative voltage conditions. It is also used for power supply designs in automotive electronics. In telecommunications, it is used for regulating transmission power and for surge protection.

Working Principle

The JAN1N4974DUS is a single Zener diode that works under the principle of avalanche breakdown. When the applied voltage to a diode reaches the breakdown voltage of that diode, it begins to conduct current. The breakdown voltage of the JAN1N4974DUS is 2.4 V and its Zener voltage is 3.2 V. This means that when the voltage applied to the diode exceeds 2.4 V, current will begin to flow in reverse, creating a constant voltage level across the diode. Thus, the JAN1N4974DUS is able to regulate voltage in power supplies and provide surge protection for sensitive electronic circuits.

Summary

The JAN1N4974DUS is a single Zener diode used in various application fields such as power management, motor control, sensing, automotive, and telecommunications. This diode has a wide range of advantages and can be used for regulating voltage in power supplies, providing surge protection in electronic circuits, and for noise suppression. It works under the principle of avalanche breakdown and is able to regulate the voltage by creating a constant voltage level across the diode when the applied voltage exceeds its breakdown voltage.

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