Schematik raised $4.6M to help anyone build hardware with AI$4.6MIL PRE-SEED ANNOUNCEMENT
CommunityPartsBlogAbout
CommunityPartsBlogAbout

Product

  • Home
  • Try Schematik
  • Download

Resources

  • Community
  • ESP32 projects
  • Blog
  • Press
  • Information for AI

Compare

  • Schematik or Fritzing
  • Schematik or Tinkercad
  • Schematik or Wokwi
  • Schematik or Claude Code

Company

  • Company
  • Jobs
  • Privacy
Making
hardware
less hard

Built with love in Europe. For makers everywhere.

© 2026 Schematik

All rights reserved

  1. Parts
  2. /Components
  3. /Passives

1N4148 General Purpose Fast Switching Diode

OverviewAlternates
1N4148 General Purpose Fast Switching Diode - Diotec - 1N4148
Availability
Out of stock

Small-signal silicon switching diode in DO-35 package rated 100V, 150mA with a fast recovery time of 4ns. Standard choice for signal rectification, clamping, and logic-level switching. Not rated for power rectification.

Parts tray full · 5 max · remove a part to add another
1N4148 General Purpose Fast Switching Diode — Diotec — 1N4148
STEP

Offers

  • ?DigiKey$0.10
  • Kiwi Electronics€0.96
  • ?OpenCircuit€2.45

Offers

  • ?DigiKey$0.10
  • Kiwi Electronics€0.96
  • ?OpenCircuit€2.45

Pinout

Logical pinout · physical placement not verified
1N4148 GENERAL PURPOSECathodeAnode
  • CathodeDO-35 axial lead at banded end

    Cathode terminal, identified by black band on DO-35 package

    Type · UnknownVoltage · reverse/forward diode terminal
  • AnodeDO-35 axial lead opposite band

    Anode terminal, opposite the cathode band

    Type · UnknownVoltage · reverse/forward diode terminal
PinPositionTypeFunctionVoltage
CathodeDO-35 axial lead at banded endUnknownCathode terminal, identified by black band on DO-35 packagereverse/forward diode terminal
AnodeDO-35 axial lead opposite bandUnknownAnode terminal, opposite the cathode bandreverse/forward diode terminal
Logical pinout · physical placement not verified
1N4148 GENERAL PURPOSECathodeAnode

Pin details

2 connections
  1. Cathode

    Cathode terminal, identified by black band on DO-35 package

    UnknownVoltage · reverse/forward diode terminal
    DO-35 axial lead at banded end
  2. Anode

    Anode terminal, opposite the cathode band

    UnknownVoltage · reverse/forward diode terminal
    DO-35 axial lead opposite band

Passives

57 other options

E12 resistor kits, ceramic and electrolytic capacitor sets, 1N4148/1N4007 diodes, TIP120 Darlingtons, IRLZ44N MOSFETs and 100F supercapacitors — bench stock in kit quantities.

View all 57
  • 1/4W Resistor Pack - 400 PCS visual preview

    1/4W Resistor Pack - 400 PCS

  • 1N4001 Diode - 10 pack visual preview

    1N4001 Diode - 10 pack

    $1.50
  • 1N4007 Diode visual preview

    1N4007 Diode

    ?
  • 220 Ω Metal Film Resistors, 1/4 W (Pack of 10) visual preview

    220 Ω Metal Film Resistors, 1/4 W (Pack of 10)

    ?
  • 3mm LED Blue - 25 PCs visual preview

    3mm LED Blue - 25 PCs

  • 3mm LED Pack (50 PCS) visual preview

    3mm LED Pack (50 PCS)

  • 5mm Green LED visual preview

    5mm Green LED

    ?
  • 5mm LED Pack (6 PCS) visual preview

    5mm LED Pack (6 PCS)

  • 6-Ch High Current Driver 1X3 Kit v1 visual preview

    6-Ch High Current Driver 1X3 Kit v1

  • 74HC165 Parallel-In Serial-Out Shift Register visual preview

    74HC165 Parallel-In Serial-Out Shift Register

    ?
  • 74HC4067 16-Channel Analog Multiplexer visual preview

    74HC4067 16-Channel Analog Multiplexer

    ?
  • Adafruit LM73100 23V 5A Max Ideal Diode Breakout visual preview

    Adafruit LM73100 23V 5A Max Ideal Diode Breakout

    $4.95

Related groups

4 groups
10W Super Bright LED - Violet visual preview

LED pixels

WS2812/SK6812 NeoPixel strips, rings and Jewels, APA102 DotStar pixels, and plain analog RGB strips — each matched to its protocol and host, not just its connector.

Components · Addressable LEDs · 180 parts

18-Channel 8-bit PWM LED Driver w/ I2C Interface visual preview

Bare ICs

74HC logic gates, MCP3008/MCP23017 ADCs and expanders, 24LC256 EEPROM, 4N25-series optocouplers and ULN2803A drivers — bare DIP chips with no breakout-board conveniences like pull-ups or level shifting.

Components · Integrated circuits · 68 parts

10-bit ADC (SPI) visual preview

Converters

ADS1115/MCP3421 ADCs, MCP4725 and GP8413 DACs, CP2102 USB-UART boards, and I2C plumbing like the LTC4316 address shifter — matched to bus, resolution and signal range.

Components · Interface converters · 114 parts

256MB Micro SD Memory Card visual preview

Memory

24LC32/25LC256 EEPROM, I2C FRAM, 64Mbit PSRAM, and microSD breakouts up to 64GB — matched to write frequency and data volume, not just interface.

Components · Memory & storage · 39 parts