1N4001 | Diode Datasheet, Specifications, Equivalent, Voltage Drop Rectron USA

1N4001 Voltage

1n4001 Picture

The 1N4001 is a rectifier diode seen in many circuits and is the starter in the 1N400X series. Its greatest strength is its ability to withstand reverse voltages of up to 50 volts. This article will look at the voltage characteristics of the 1N4001.

1. Reverse voltage characteristics

The maximum reverse voltage that 1N4001 can withstand is 50V, which means that it can work properly at 50V, but when the voltage exceeds 50V, the diode may breakdown, which can cause damage to the circuit. So when we design the circuit, we have to make sure that the reverse voltage on the 1N4001 in the circuit will not exceed 50V.

2. Forward conduction voltage drop

In the case of positive conduction, the positive conduction voltage drop (VF) of 1N4001 is about 0.7V, which is relatively small forward voltage drop. Due to the small positive conduction voltage drop, the extra loss in the case of conduction is low, which improves the overall efficiency of the circuit very well.

3. Application Scenarios

1N4001 is widely used in rectifier circuits and protection circuits due to its large reverse voltage. In a power adapter, four 1N4001‘s are usually used to convert AC power to DC power through rectification. 1N4001’s can also be used to protect circuits from reverse current damage to other components (for example, USB port circuits usually add a 1N4001 to the power input pin, which is used to prevent us from plugging in the opposite way when plugging in the USB to prevent the device from being burned out).