1N4148 Datasheet PDF – 100V, 0.3A, Vishay ( Diode, Rectifier )

Part Number: 1N4148

Function: 100V, 300mA, Switching Diode, Rectifier

Package: Axial type

Manufacturer: Vishay Semiconductors


1N4148 datasheet


What is 1n4148 zener diode voltage?

This is 100V, Small signal switching diode for general purpose applications.

1N4148 is a small, signal-level switching diode with a maximum voltage rating of 100V and a maximum current rating of 300mA. It is commonly used in low-power applications such as signal detection, RF circuits, and digital electronics.


1. Silicon epitaxial planar diode

2. Electrically equivalent diodes : 1N4148 – 1N914


Mechanical Data :

1. Case : DO-35 (DO-204AH)

2. Weight : approx. 105 mg

3. Cathode band color : black


1. Repetitive peak reverse voltage : VRRM = 100 V

2. Reverse voltage : VR = 75 V

3. Peak forward surge current tp = 1 μs : IFSM = 2 A

4. Repetitive peak forward current : IFRM = 500 mA

5. Forward continuous current : IF = 300 mA

1N4148 and 1N4007?

(1) voltage and current:

The 1N4007 diode is a general destination rectifier diode having a maximum voltage rating of 1000V and a maximum current, while the 1N4148 is a maximum voltage 100V and a maximum current grade 200mA. .

(2) Application devices:

Since the voltage and current rating are different, the 1N4007 diode is generally used in the power supply and other applications, while the 1N4148 diode is generally a low -power application such as signal detection, RF circuit and digital electronics It is commonly used in the field.

(3) Characteristics:

The 1N4148 is faster than the 1N4007, making it more suitable for high frequency applications. The 1N4007 has a greater Junction capacitance than the 1N4148, which can affect the performance in a specific circuit.

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