TOSHIBA Transistor Silicon NPN Epitaxial Type 2SC4684 Strobe Flash Applications Medium Power Amplifier Applications 2SC4684 Unit: mm High DC current gain : hFE (1) = 800 to 3200 (VCE = 2 V, IC = 0.5 A) : hFE (2) = 250 (VCE = 2 V, IC = 4 A) Low collector saturation voltage : VCE (sat) = 0.5 V (max) (IC = 4 A, IB = 40 mA) High power dissipation : PC = 10 W (Tc = 25°C), PC = 1.0 W (Ta = 25°C) Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Collec.