KL4 Diode BAT54S Diode Schottky SOT23 0.2A 30V BAT54S

The BAT54S is a 30V, 200mA surface-mount small-signal dual Schottky barrier diode manufactured by Fairchild Semiconductor for high-speed signal switching, low-voltage rectification, and reverse polarity protection applications. Housed in a compact surface-mount SOT-23 molded plastic package, this discrete component integrates two diodes connected in a series configuration designed to save board space and optimize automated placement. It operates with a maximum repetitive peak reverse voltage of 30V and an average forward rectified current of 200mA while carrying the package top-side marking code "KL4". Engineered with an ultra-fast switching speed, low forward voltage drop, and a reverse recovery time of 5 ns, this robust device delivers reliable performance across an operating junction temperature range from minus 55 to plus 150 degrees Celsius.