Datasheet BC557B (Multicomp) - 3

BC557B General Purpose Transistors
Electrical Characteristics (Ta = 25°C Unless Otherwise Specified) Parameters Symbol Test Condition Rating Unit
I <0.30 Collector Emitter Saturation Voltage V C = 10mA, IB = 0.5mA CE (Sat) IC = 100mA, IB = 5mA <0.65 I Typical 0.70 Base Emitter Saturation Voltage V C = 10mA, IB = 0.5mA BE (sat) V IC = 100mA, IB = 5mA Typical 0.90 I 0.55 - 0.70 Base Emitter on Voltage V C = 2mA, VCE = 5V BE (on) IC = 10mA, VCE = 5V <0.82
Dynamic Characteristics
I Transition Frequency f C = 10mA, VCE = 5V T Typical 150 MHz f = 100MHz Collector output Capacitance Ccbo VCB = 10V, f = 1MHz <6.0 pF Emitter Input Capacitance Cib VEB = 0.5V, f = 1MHz Typical 9.0 IC = 0.2mA, VCE = 5V Noise Figure NF RS = 2kΩ, f = 1kHz <10 dB B = 200Hz Small Signal Current Gain hfe IC = 2mA, VCE = 5V -
BC557B
Typical 330 - Input Impedance hie IC = 2mA, VCE = 5V -
BC557B
3.2 - 8.5 KΩ Voltage Feedback Ratio hre IC = 2mA, VCE = 5V -
BC557B
Typical 2.0 x10-4 Out put Admittance hoe IC = 2mA, VCE = 5V -
BC557B
<60 umhos
Specifications VCEO VCBO h F I FE T C Ptot Maximum Maximum Minimum Minimum Package Part Number (A) (mW) (V) (V) at IC = 2mA (MHz)
45 50 0.1 75 75 625 TO-92 BC557B Page <3> 13/05/08 V1.1