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 micro second)
  • 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 (pdf)