The SS54A with 500µA@40V 40V 550mV@2A 5A SMA Schottky Barrier Diodes (SBD) ROHS manufactured by WPMtek is a type of semiconductor device that uses an extremely thin Schottky barrier formed at the junction between n-type and p-type silicon. This design advantaged the SS54A with high current carrying capability, low forward voltage, and very low reverse leakage current. The ROHS certification on this device assures that it is free of hazardous and toxic materials. The SMA pin configuration and packaging provides further advantages in overall design such as superior power dissipation and durability in hostile and high vibration environments.