1N4148 Diode – 100V, 500mW, NXP ( Rectifier )

Part Number: 1N4148

Function: High-speed Diode / Continuous reverse voltage: max. 100 V

Package: SOD-27, DO-35 Type

Manufacturer: NXP Semiconductors.

Image and Pinouts:

1N4148 datasheet


What is 1N4148?

The 1N4148 and 1N4448 are high-speed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass SOD27 (DO-35) packages.

The 1N4148 diode is a small, signal-level switching diode widely used in electronic circuits. It is a fast-switching, general-purpose diode with a maximum current rating of 200mA and a maximum voltage rating of 100V.

The 1N4148 diode is commonly used in electronic circuits for a variety of purposes, such as rectification, voltage clamping, and signal detection. Its fast switching speed makes it suitable for high-frequency applications, such as radio-frequency (RF) circuits and digital electronics.


1. High switching speed: max. 4 ns
2. continuous forward current: 200mA
3. Continuous reverse voltage: max. 100 V
4. Repetitive peak reverse voltage: max. 100 V
5. Repetitive peak forward current: max. 450 mA.
6. Total power dissipation : Ptot = 500 mW
7. Junction temperature : Tch = -65 ~ 200 °C
8. Storage temperature: Tstg = 200 °C


1. High-speed switching.

The difference between 1N4148 and 1N4007?

1. 1N4148 is a switching diode with a fast reverse recovery speed, while 1N4007 is a rectifier diode with a slow reverse recovery speed.

2. The 1N4148 has a faster switching speed than the 1N4007, making it more suitable for high-frequency applications.

3. If high voltage and current are required, the 1N4007 may be a better choice, while the 1N4148 may be preferred for low-power and high-frequency applications.

1N4148 Datasheet PDF Download

1N4148 pdf

Other data sheets are available within the file: IN4148, 1N4148PH, 1N4448, 4148PH

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