The 1N4148 Rectifier Diode is a general purpose silicon diode commonly used as a blocking diode or as a rectifier in power supplies that convert AC to DC power. The 1N4148 has a continuous blocking voltage of 75V and can sink up to 200mA of current. The 1N4148 diode has a fast switching speed of 4 ns. The forward voltage drop of the diode is 1.0V.
Features of 1N4148
- High Reliability
- Low forward voltage
- High-speed switching
- Low reverse leakage current
- Lead-free finish, RoHS compliant
Pinout of 1N4148
Specification of 1N4148
| Package Type | DO-35 |
| Diode Type | RECTIFIER DIODE |
| Diode Element Material | SILICON |
| Reverse Recovery Time | 4ns |
| Operating Temperature-Max | 175.0 Cel |
| Output Current-Max | 200 mA |
| Peak Repeat. Reverse Voltage | 75 V |
| Max. Reverse Current (Ir) | 0.025 mA |
| Max. RMS Reverse Voltage (Vr) | 75 V |
| Max. Forward Voltage Drop (Vf) | 1.0V |
| Max Power Dissipation | 500 mW |
| Reverse Current | 5 µA |
| Average Rectified Current (Io) | 0.2 A |
Uses of 1N4148
The 1N4148 can be used in a variety of electronic applications. It can be used when you need to convert AC power to DC power, it can be used to block power surges to protect electronic components from being burned or damaged, and it can also be used in digital logic circuits. It is also suitable for battery charging circuits, power supply circuits, and voltage doubler circuits.
Advantages of 1N4148
- Cheap construction
- Low forward voltage drop
- Low reverse leakage
- High forward surge current capability
Applications
- High-speed switching
- General switching
- Rectification
- Components protection
- Blocking incoming voltage was not required
- Signal filtering
Equivalent of 1N4148
- 1N4448, 1N4150, 1N4151, 1N4448WS, 1N914, 1N916A