BC857T PNP General Purpose Transistor FEATURES * Ideally suited for automatic insertion * For Switching and AF Amplifier Applications MECHANICAL DATA * Case: SOT-523 Plastic * Case material: "Green" molding compound, UL flammability classification 94V-0, (No Br. Sb. CI) * Lead Free in RoHS 2002/95/EC Compliant Maximum Ratings @ TA = 25 Characteristic Symbol Value Unit Collector-Base Voltage VCBO -50 V Collector-Emitter Voltage VCEO -45 V Emitter-Base Voltage VEBO -6 V Collector Current -Continuous IC -100 mA Collector Power Dissipation PC 150 mW Junction Temperature TJ 150 TSTG -55~+150 Storage Temperature Range Electrical Characteristics @ TA = 25 unless otherwise specified Characteristic Test Condition Symbol Min. Typ. Max. Unit Collector-base breakdown voltage IC=-10A,IE=0 VCBO -50 V Collector-emitter breakdown voltage IC=-10mA,IB=0 VCEO -45 V Emitter-base breakdown voltage IE=-1A,IC=0 VEBO -6 V Collector-base cut-off current VCB=-30V ICBO DC current gain VCE=-5V,IC=-2mA Collector-emitter saturation voltage Base-emitter saturation voltage Base-emitter voltage Transition frequency IC=-10mA,IB=-0.5mA IC=-100mA,IB=-5mA IC=-10mA,IB=-0.5mA IC=-100mA,IB=-5mA IC=-2mA,VCE=-5V IC=-10mA,VCE=-5V VCE=-5V,IC=-10mA, f=100MHz AT BT CT hFE -15 125 220 420 250 475 800 -0.3 -0.66 VCE(sat) VBE(sat) VBE fT -600 -0.7 -0.9 -660 nA V V -750 -820 100 mV MHz Collector output capacitance VCB=-10V,f=1MHz Cob 4.5 pF Noise figure VCE=-5V,IC=-0.2mA, f=1KHz,RS=2K Bandwidth=200Hz NF 10 dB REV. 2, Jun-2012, KSPR07 SOT-523 Outline Dimension Device Marking : Device P/N Classification of hFE Marking code BC857AT 125-250 3E BC857BT 220-475 3F BC857CT 420-800 3G Electrical characteristic curves Fig.1 Power Derating Curve Fig.2 DC Current Gain vs. Collector Current Fig.3 Collector Saturation Voltage vs. Collector Current Fig.4 Current Bandwidth Product vs. Collector Current Legal Disclaimer Notice BC857T Important Notice and Disclaimer LSC reserves the right to make changes to this document and its products and specifications at any time without notice. Customers should obtain and confirm the latest product information and specifications before final design, purchase or use. LSC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does LSC assume any liability for application assistance or customer product design. LSC does not warrant or accept any liability with products which are purchased or used for any unintended or unauthorized application. No license is granted by implication or otherwise under any intellectual property rights of LSC. LSC products are not authorized for use as critical components in life support devices or systems without express written approval of LSC.