1N4151 Diode

Specifications of 1N4151 diode

  • Maximum Recurrent Peak Reverse Voltage: 75 V
  • Maximum Average Forward Output Current: 0.15 A
  • Maximum Forward Voltage Drop per element at 1.0A DC: 1 V
  • Maximum reverse recovery time: 2 ns
  • Typical Junction Capacitance: 4 pF
  • Package: DO-35
  • Weight: 0.13 grams
  • Operating and Storage Temperature Range: -65...+150 °C

Polarity and Pinout

The 1N4151 diode has a cathode (-) and anode (+). In the schematic symbol, the tip of the triangle with the line on top of it is the cathode. The cathode is marked on the body of a diode by a band as shown below.
1N4151 diode polarity
The current can flow from only the anode to the cathode and never from the cathode to the anode - the 1N4151 diode is like a one way electric valve.

Dimensions of 1N4151 diode

Dimensions 1N4151 diode

Replacement and Equivalent

You can replace the 1N4151 with the 1N4151W