onsemi / Fairchild 1N4148 – Small-Signal Fast Switching Diode (DO‑35)

The 1N4148 is a versatile, high-speed silicon signal diode known for its robustness, reliability, and broad adoption in electronic designs.

Key Specifications:

• Package: DO‑35 glass axial through-hole
• Peak Reverse Voltage (VRRM): 100 V
• Average Forward Current (IF(av)): 200 mA
• Peak Forward Current (IF): 300 mA (DC); surge up to 4 A (1 µs)
• Forward Voltage Drop (VF): ≈1.0 V at 10 mA
• Reverse Recovery Time (trr): ≤ 4 ns (suitable for frequencies up to ~100 MHz)
• Capacitance (CD): ~4 pF
• Reverse Leakage Current (IR): ~5 µA at 75 V
• Operating Temperature: –55 °C to +175 °C

Applications:

• High-speed switching (fiber-optic, digital logic)
• Signal conditioning and waveform shaping
• Protection and steering in low-power circuits
• Widely used in hobby electronics (e.g., keyboards, microcontrollers)

Datasheet: 1N4148

Sold in a pack of 10 pc.