NPN SILICON PLANAR TRANSISTORSBC107/A/B/C BC108/A/B/C BC109/A/B/CTO-18 Metal Can PackageELECTRICAL CHARACTERISTICS (Ta=25ºC unless specified otherwise) DESCRIPTIONSYMBOLTEST CONDITIONMINTYPMAXUNITCollector Emitter Saturation Voltage VCE (sat) IC=10mA, IB=0.5mA 0.25 V IC=100mA, IB=5mA 0.60 V Base Emitter Saturation Voltage VBE (sat) IC=10mA, IB=0.5mA 0.83 V IC=100mA, IB=5mA 1.05 V Base Emitter On Voltage V BE (on) IC=2mA, VCE=5V 0.55 0.70 V IC=10mA, VCE=5V 0.77 V I Collector Knee Voltage V C=10mA, IB=the value for which CE (K) 0.60 V I C=11mA at VCE=1V Transition frequency fT IC=10mA, VCE=5V, f=100MHz 150 MHz Output Capacitance Cobo VCB=10V, IE=0, f=1MHz 4.5 pF Noise Figure NF IC=0.2mA, VCE=5V, Rg=2KΩ, f=30Hz to 15KHz BC109 4.0 dB f=1KHz, ∆F=200Hz , BC109 4.0 dB BC107/108 10 dB SMALL SIGNAL CHARACTERISTICS DESCRIPTIONSYMBOLTEST CONDITIONMINTYPMAXUNITSmall Signal Current Gain hfe IC=2mA, VCE=5V, f=1KHz BC107 125 500 BC108 125 900 BC109 240 900 A Group 125 260 B Group 240 500 C Group 450 900 Input Impedance hie IC=2mA, VCE=5V, f=1KHz A Group 1.6 4.5 KΩ B Group 3.2 8.5 KΩ C Group 6.0 15 KΩ Output Admittance hoe IC=2mA, VCE=5V, f=1KHz A Group 30 µmhos B Group 60 µmhos C Group 110 µmhos BC107_109Rev_3 231202E Continental Device India Limited Data Sheet Page 2 of 4