Diode - 1N4148 Small Signal Fast Switching Diode

Description

Common small signal fast switching diode. Perfect for converting 5V level logic to 3.3V level compatible logic. Connect two of these diodes in series between a 5V level device and a 3.3V level device to get a voltage drop of around 1.4V, effectively converting your 5V logic level to a 3.6V logic level which is usually acceptable on 3.3V logic level devices (check the specifications of your specific device to be sure).

Specifications

• Forward Voltage: 0.4 to 1.2V depending on forward current
• Reverse Breakdown Voltage: 100V
• Diode Capacitance: 4pF
• Absolute Maximum Ratings:
  • Peak Forward Surge Current: 4A (1 microsecond)
  • Repetitive Peak Forward Current: 500mA (1 second)
  • Average Forward Current: 200mA
  • Repetitive Peak Reverse Voltage: 100V
  • Reverse Voltage: 75V
  • Power Dissipation: 500mW

Resources

• 1N4148 Datasheet