SMD Schottky Barrier Diode 230mW – Taiwan Semiconductor BAT54 RF, 0.2A 30V SMT Schottky Barier Diode; Single Chip A surface mount BAT54 Schottky barrier diode that has a single chip configuration. The device has a fast switching speed and comes in a SOT-23 package. Taiwan Semiconductor BAT54 RF 0.2A 30V SMT Schottky Barier Diode; Single Chip