1N737

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	91V
Tolerance:	±10%
Power - Max:	250mW
Impedance (Max) (Zzt):	340 Ohms
Operating Temperature:	--
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

A 1N737 is a single zener diode. It has a wide range of applications in electronics due to its relatively low voltage drop and ability to handle higher currents than many other zener diodes. In this article we’ll look at the 1N737\'s application field and working principle.

Applications of 1N737

1N737 is widely used in various fields, from basic circuits to high-end applications. One of the most common applications for 1N737 is to provide a stable voltage reference for circuits, such as circuit voltage dividers, analog comparators, and voltage regulators. It is also used as an AC voltage limiter, as it can clamp the voltage at a predetermined level. It can also be used for overvoltage protection in power supplies, reducing the risk of an accidental hot spot in the circuit, and protecting against surges in voltage. 1N737 can also be used in the output stages of amplifiers, minimising the distortion in the signal. It is also used to limit the peak voltage of a signal waveform, allowing it to travel through circuit elements without damage, or to act as a thermistor in temperature sensors to regulate the temperature in a specified range.

Working Principle of 1N737

The 1N737 zener diode is based on the regular PN junction diode structure. However, it has a special P-N junction called a Zener junction, which provides it with unique characteristics, due to its built-in reverse breakdown voltage. When the diode is forward biased, the electrons from the P side of the diode move towards the N side, inducing a current flow and setting up a forward voltage drop across the diode, like any other normal diode. But when the diode is reverse biased, the current flow becomes limited due to the higher electric field at the junction. When the electric field exceeds the breakdown voltage of the diode (in the case of the 1N737, this voltage is 6.2V), a sudden surge of electrons will rush to neutralize the opposite charge, creating an avalanche breakdown effect. This avalanche breakdown sets up a predictable reverse voltage across the diode, allowing it to act as a stable voltage reference in circuits. It is this breakdown voltage which is an important factor used to rate a zener diode and the 1N737’s IS 6.2V is considered to be one of the highest breakdown voltage ratings available in a zener diode of its size.

Conclusion

The 1N737 single zener diode is a useful component in a wide range of applications, due to its low voltage drop and excellent currents handling ability. It is based on the PN junction diode structure, but it also has a built-in reverse breakdown voltage, allowing it to act as a stable voltage reference in circuits. It is used for overvoltage protection, voltage dividers, amplifier output stages, AC voltage limiters, temperature to regulating sensors and much more. Overall, its versatile application makes it a popular choice among engineers and hobbyists alike.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description