BC857UF Semiconductor PNP Silicon Transistor Descriptions * General purpose application * Switching application Features * High voltage : VCEO=-45V * Complementary pair with BC847UF Ordering Information Type NO. Marking BC857UF Package Code BV SOT-323F : hFE rank Outline Dimensions unit : mm 2.10.1 0.30~0.40 3 2 +0.1 0.70-0.15 1.30 BSC 1 0~0.1 0.110.05 2.00.1 1.300.1 KST-3042-001 PIN Connections 1. Base 2. Emitter 3. Collector 1 BC857UF (Ta=25C) Absolute maximum ratings Characteristic Symbol Ratings Unit Collector-Base voltage VCBO -50 V Collector-Emitter voltage VCEO -45 V Emitter-Base voltage VEBO -5 V Collector current IC -100 mA Collector dissipation PC 200 mW Junction temperature Tj 150 C Storage temperature Tstg -55~150 C (Ta=25C) Electrical Characteristics Characteristic Symbol Collector-Emitter breakdown voltage BVCEO IC=-2mA, IB=0 Base -Emitter turn on voltage VBE(ON) Base -Emitter saturation voltage Collector-Emitter saturation voltage Collector cut-off current DC current gain Transition frequency Collector output capacitance Noise Figure Test Condition Min. Typ. Max. Unit -45 - - V VCE=-5V, IC=-2mA - - -700 mV VBE(sat) IC=-100mA, IB=-5mA - -900 - mV VCE(sat) IC=-100mA, IB=-5mA - - -650 mV VCB=-35V, IE= 0 - - -15 nA 110 - 800 - VCB=-5V, IC=-10mA - 150 - MHz Cob VCB=-10V, IE=0, f=1MHz - - 4.5 pF NF VCE=-5V, IC=-200A, f=1KHz,Rg=2K - - 10 dB ICBO hFE * fT VCE=-5V, IC=-2mA * : hFE rank / A : 110 ~ 220, B : 200 ~ 450, C : 420 ~ 800 KST-3042-001 2 BC857UF Electrical Characteristic Curves Fig. 1 PC-Ta Fig. 2 IC-VBE Fig. 3 IC-VCE Fig. 4 hFE-IC Fig. 5 VCE(sat)-IC KST-3042-001 3