TOSHIBA Transistor Silicon NPN Triple Diffused Type 2SC5684 Switching Regulator and High-Voltage Switching Applications 2SC5684 Unit: mm Excellent switching times (IC = 0.3 A) : tr = 0.7 µs (max), tf = 0.5 µs (max) High collector breakdown voltage: VCEO = 800 V High-speed DC-DC converter applications Maximum Ratings (Ta = 25°C) Characteristics Collector-base voltage Collector-emitter voltage Emitter-base voltage Collector current DC Pulse Base current Col.