1N4904A

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	12.8V
Tolerance:	±5%
Power - Max:	400mW
Impedance (Max) (Zzt):	100 Ohms
Operating Temperature:	-55°C ~ 100°C
Mounting Type:	Through Hole
Package / Case:	DO-204AA, DO-7, Axial
Supplier Device Package:	DO-7

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

The 1N4904A diode is a single Zener diode that is used for many different applications. It has a wide range of operating voltages and excellent stability characteristics, making it suitable for many applications. This article provides an overview of the 1N4904A’s application field and working principles.

Applications

The 1N4904A diode is designed for use in a variety of applications. Some of the most common applications include over-voltage protection, surge protection, and ESD protection. It is also widely used in automotive, communications, and industrial applications.In addition, it is also used in applications such as voltage regulation, circuit protection, and signal conditioning. It can be used to protect sensitive electronic components from reverse voltages and prevent over-current conditions.

Operating Voltage and Physical Specifications

The 1N4904A diode has a wide operating voltage range, making it suitable for many applications. The nominal operating voltage (VZ(nom)) is rated between 5.6V and 30V. It also has a wide range of reverse breakdown voltages (V(BR)) ranging from 5V to 70V.The 1N4904A has a small size, making it easy to integrate into small spaces. The device is packaged in a SOD-123 package and measures 1.3mm x 1.3mm x 0.6mm. This small size makes the diode ideal for use in portable or mobile applications.

Working Principle

The 1N4904A operates using a Zener breakdown mechanism. When an excessive forward voltage is applied to the diode, electrons and holes are passed through the device. This produces a large electric field within the diode that causes the free electrons to become accelerated and again collision with each other and the lattice atoms, which in turn causes the Zener breakdown.Once the Zener breakdown occurs, the electric field within the diode is reversed. This causes the diode to clamp the voltage between the diode’s anode and cathode. This prevents any further voltage from rising above the Zener breakdown voltage and protects the device from voltage spikes.

Conclusion

The 1N4904A diode is a single Zener diode that is used in a variety of applications. It has a wide operating voltage range, making it suitable for over-voltage and surge protection. The 1N4904A diode operates using a Zener breakdown mechanism, in which it clamps the voltage between the diode’s anode and cathode to protect against voltage spikes.

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

Part Number	Manufacturer	Price	Quantity	Description