1N4148 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

1N4148 product

1N4148

Diodes

Fast SwitchingDO-35Signal Diode

The 1N4148 is a widely used, high-speed switching diode in a DO-35 package, ideal for general-purpose signal rectification and high-frequency switching tasks.

Best for

  • High-speed signal switching
  • General-purpose rectification

Avoid if

  • High-power rectification applications exceeding 150mA
  • Applications requiring low forward voltage drop (Schottky diodes may be better)

Check before use

  • Peak forward surge current
  • Reverse recovery time requirements

Key specifications

Reverse Voltage
75 V
Forward Current
150 mA
Reverse Recovery Time
4 ns
Power Dissipation
500 mW

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

General SwitchingSignal Processing

CAD Models

Download ECAD models for 1N4148: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

1

A pin-compatible switching diode from ST with equal or better voltage, current, and temperature ratings.

Needs validation

Design and risk insights

Questions & answers

The 1N4148 is a hermetically sealed glass fast switching diode commonly used in electronic circuits for signal rectification and high-speed switching.