1N4148W 1206 SMD Diode
The 1N4148W 1206 SMD Diode is a fast‑switching, small‑signal diode designed for high-performance applications in power electronics. Its compact 1206 / SOD-123 surface‑mount package allows efficient use of space on printed circuit boards. With nanosecond-level switching performance, it supports precise signal routing, logic-level clipping, and transient protection in circuits requiring fast response.
In industrial and commercial use — including telecommunications, automotive modules, and consumer electronics — the 1N4148W provides reliable operation. Its Silicon epitaxial planar construction, along with RoHS compliance, ensures consistent performance under varying conditions. Low forward voltage drop and minimal leakage current contribute to energy efficiency, while the small package suits dense PCB layouts.
The diode is suitable for voltage clipping, logic-level signal steering, reverse-polarity protection, and high-frequency switching applications. Its performance remains stable even in space-constrained and high-speed circuits.
Key Specs
| Parameter | Value |
|---|---|
| Reverse (DC) Voltage (VR) | 75 V |
| Peak Repetitive Reverse Voltage (VRRM) | 100 V |
| Maximum Average Forward (Rectified) Current (IF(AV)) | 150 mA |
| Non‑Repetitive Peak Forward Surge Current (IFSM) | up to 2 A (short pulse) |
| Forward Voltage (VF) | ~0.715 V @ 1 mA; ~1.2 V @ 100 mA |
| Reverse Recovery Time (trr) | ≤ 4 ns |
| Total Capacitance (Cj) | ~2–4 pF |
| Package / Case | SOD-123 / 1206 SMD, surface‑mount plastic package |
| Operating / Storage Temperature | –55 °C to +150 °C |
For more detailed information, please refer to the official datasheet from the manufacturer 1N4148W Datasheet PDF.









