1N4148

1N4148 Diode - DO-35 Switching diode

The 1N4148 is a widely used high-speed switching diode with the following key specifications:

General Specifications

- Type: Small Signal Diode / Switching Diode

- Package:** DO-35 (through-hole)

Electrical Characteristics

- Maximum Reverse Voltage (V\_R):** 100 V

- *Forward Voltage Drop (V\_F):** Typically 0.7 V at 10 mA (max 1.0 V at 100 mA)

- Average Forward Current (I\_F(AV)):** 200 mA

- Non-Repetitive Peak Surge Current (I\_FSM): 2 A (for a duration of 1 µs pulse width)

- Power Dissipation (P\_tot):** 500 mW (typically, depending on ambient conditions and cooling)

Switching Characteristics

- Reverse Recovery Time (t\_rr):** ~4 ns (measured at I\_F = 10 mA and I\_R = 1 mA, with R\_L = 100 Ω)

- Max Switching Speed:** ~100 MHz

Thermal Characteristics

- Junction Temperature Range (T\_J):** -65°C to +175°C

- Storage Temperature Range (T\_stg):** -65°C to +200°C

Applications

The 1N4148 is commonly used in:

- High-speed switching applications

- Logic circuits

- Signal processing circuits

- General-purpose switching in low-voltage, low-current applications