1N4001 BK

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	50V
Current - Average Rectified (Io):	1A
Voltage - Forward (Vf) (Max) @ If:	1.1V @ 1A
Speed:	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr:	5µA @ 50V
Capacitance @ Vr, F:	--
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-41
Operating Temperature - Junction:	-65°C ~ 175°C

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

1N4001 BK is a kind of diode rectifier which is single and popular in today’s electronic application. It is a general-purpose diode which can serve several applications. This article mainly focuses on 1N4001 BK application field and working principle.

Application Field

1N4001 BK is a low-cost and small package diode which is often used in many applications. It is mainly used in DC bridge rectifier, power supply and polarity protection. Besides, it can also act as a signal diode, voltage multipliers, and free wheeling diode.

DC Bridge Rectifier

1N4001 BK is commonly applied in DC Bridge rectifier. DC Bridge Rectifier converts AC voltage to DC voltage. By assembling four 1N4001 BK in a bridge rectifier circuit, the AC voltage is rectified and filtered then outputs a DC voltage. The bridge rectifier circuit is a popular low-cost and wide-range voltage DC power supply.

Power Supply and Polarity Protection

1N4001 BK is also used in power supply and polarity protection. It is commonly connected across a voltage source to protect the device from reverse voltage. The characteristics of 1N4001 BK is perfect for the purpose. It is not only easy to be applied in any circuit and able to cope with large current and large voltage but also break down the reverse voltage.

Signal Diode

1N4001 BK is able to serve as a signal diode to amplify and also process the signal by modifying the biasing of an amplifier circuit. It is much suitable for rectifying or splitting incoming signals or pulse.

Voltage Multipliers

Voltage multipliers can use 1N4001 BK to increase the voltage up to few hundred volts. The 1N4001 BK is a perfect choice for its ability to withstand large voltage and current.

Free Wheeling Diode

Free wheeling diode also use 1N4001 BK to pass large current and withstand large voltage. It provides a safe path for the discharge of electrical energy stored in the inductors and transformers.

Working Principle

1N4001 BK works with the “high voltage - low current” operation principle. When the forward voltage is higher than the breakdown voltage, only a small amount of current will flow through the diode. As the voltage increases further, the current value increases rapidly. However, when the reverse voltage is higher than the breakdown voltage, the diode will not allow any current flow through the diode.

Forward voltage - low current operation

Under the forward voltage condition, the voltage applied across the diode should be higher than the breakdown voltage to have the diode conduct. In this case, the current will be low. As the voltage rises, so does the current.

Reverse voltage - high current block operation

In the reverse voltage condition, the anode voltage should be higher than the breakdown voltage and the cathode voltage should be lower than the breakdown voltage. The diode will block all current. Therefore, it works as the protection circuit or devices.

Conclusion

In a word, 1N4001 BK is a widely used diode which has many advantages including low cost, small package, widely range of application, and easy to use. It is able to serve DC bridge rectifier, power supply and polarity protection, signal diode, voltage multipliers and free wheeling diode. What’s more, the working principle is the “high voltage-low current” operation principle. 1N4001 BK is really a useful device to help us with our electric application. It can make the application easier, more reliable and more secure.

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

Part Number	Manufacturer	Price	Quantity	Description