1N5337C/TR8

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	4.7V
Tolerance:	±2%
Power - Max:	5W
Impedance (Max) (Zzt):	2 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 1V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 1A
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	T-18, Axial
Supplier Device Package:	T-18
Base Part Number:	1N5337

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Introduction

1N5337C/TR8 is a single Zener diode. This type of diode is specially designed to conduct current in only one direction and is also known as being a voltage regulator. These thermal and low power Zener diodes are specifically designed for power supplies and safety applications, providing a very stable voltage source. The 1N5337C/TR8 acts as a voltage reference for two-terminal current limiting circuits and is usually found in applications such as peak current limiters, high noise immunity, ESD protection and voltage regulating circuits.

Specifications

The 1N5337C/TR8 diode has a nominal Zener voltage of 5.6V and is designed to handle a minimum power dissipation of 500mW at a junction temperature of 25°C. The diode has a positive temperature coefficient of 0.61mV/K. The 1N5337C/TR8\'s zener breakdown voltage is measured to be 5.1V. The maximum DC reverse current for the 1N5337C/TR8 is 150µA. The device has a maximum DC power dissipation of 925mW and an operating temperature range of -65°C to +175°C, making it suitable for use in a variety of thermal and power supply applications.

Applications

The 1N5337C/TR8 is typically used in applications such as overvoltage protection, electricity storage/retrieval, ESD protection, overcurrent protection, irregular load protection and peak current limiters. This diode can also be used in low noise and low consumption circuits, as well as in automotive applications. Additionally, it is suitable for use in voltage regulating circuits, as it provides a relatively stable and reliable voltage reference.

Working Principle

A Zener diode, such as the 1N5337C/TR8, consists of a conventional diode with a heavily doped p-n junction. This p-n junction act as a voltage-controlled rectifier at voltages over a specified breakdown or zener voltage. When a forward voltage is applied across this type of diode, electrons move into the p-n junction to fill the empty holes at the depleted layer near the junction. When the applied voltage increases, the depletion layer of the junction will become thinner and thinner, allowing more electrons to move into the junction. When the applied voltage reaches the breakdown voltage, the depletion layer completely disappears and the current starts flowing in both directions through the junction. In this way, the Zener diode can be used to provide a stable voltage reference source.

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