The Standard Rectifiers characteristics 1. Excel in use as freewheeling of boost diode. 2. Low stored charge. 3. Hyperfast soft: (1) Recovery minimize electrical noise. (2) Reducing power loss.
The Super-Fast Recovery Diode has characteristics 1. High efficiency. 2. Low leakage current. 3. High surge current capability. 4. Super-fast switching.
The Small Signal Switching Diodes has characteristics. 1. Fast switching speed. 2. Low forward voltage. 3. Fast reverse recovery. 4. Low capacitance. 5. Surface mount package.
They offer a wide range of performance characteristics. 1. High-speed switching. 2. Exceptional temperature stability. 3. High efficiency. 4. Wide operating temperature range.
NPN type is driven (or turned on) by positive current biased.(Control the current flow from Collector to Emitter)
PNP type is driven by a negative current biased.(Control the current flow from Emitter to Collector)