The 1N4148W is a switching diode manufactured by WPMtek. It is designed to operate in a wide range of temperatures, from as low as -55? up to 150?. The 1N4148W also features a peak reverse voltage of 100V and a power dissipation of 500mW. Additionally, it has a maximum forward voltage drop of 1.25V at 150mA and a reverse current of 1uA at 70V. It also has an extremely fast switching time of 4ns, making it great for many different applications. The 1N4148W is a SOD-123 packaged diode, and follows the ROHS standards for safety and environmental sustainability.