The SOD4004 with Diodes General Purpose SOD-123FL RoHS is a small, power efficient, and low-cost diode manufactured by Microdiode Electronics. The component measures only 1.2 x 1.4 mm in size but offers high current-carrying capacity, making it suitable for many different applications. The diode has a maximum forward surge current of 400 mA and a reverse breakdown voltage of 4 volts. It is also RoHS-compliant, meaning that it is free from hazardous substances like lead, mercury, and cadmium. The SOD4004 is a popular choice for high-density and high-speed applications, as it provides excellent performance at a reasonable cost.