KE C SEMICONDUCTOR BF420 KOREA ELECTRONICS CO.LTD. TECHNICAL DATA SILICON NPN TRIPLE DIFFUSED TYPE HIGH VOLTAGE SWITCHING AND AMPLIFIER APPLICATION. COLOR TV CHROMA OUTPUT APPLICATIONS. B Cc FEATURES * High Voltage : Vcero>300V * Complementary to BF421. * I t =| N DIM MILLIMETERS MAXIMUM RATINGS (Ta=25T) K ae i xf A a ae | : CHARACTERISTIC SYMBOL | RATING | UNIT > - roe | E 1.00 Collector-Base Voltage Vero 300 Vv : E Collector-Emitter Voltage Vero 300 Vv LH i 4001050 F F K 0.55 MAX Emitter-Base Voltage VeEno 5 Vv i oa wax DC I 50 TET te Cc = Collector Current mA . couECTOR Peak Tcp 100 3. BASE Collector Power Dissipation Pe 625 mW TO-92 Base Current Ip 50 mA Junction Temperature T; 150 Cc Storage Temperature Range Tstg -65 ~ 150 Cc ELECTRICAL CHARACTERISTICS (Ta=25T ) CHARACTERISTIC SYMBOL TEST CONDITION MIN. TYP. | MAX. | UNIT Vcp=200V, Ip=0 - - 10 nA Collector Cut-off Current Tcno Vcp=200V, Ip=0, Tj=150C - - 10 uA Emitter Cut-off Current Trno Ven=oV, Ic=0 - - 50 nA DC Current Gain hr Vor=20V, Ic=25mA 50 - - - Collector-Emitter _- _ _ _ Saturation Voltage Vertsat) Ic=30mA, Ip=omA 0.6 Vv Base-Emitter Voltage Ver Vcn=20V, Ic=25mA - 0.75 - Vv Transition Frequency fy Vor=10V, Ic=10mA 60 - - MHz Reverse Transfer Capacitance Cre Vcp=30V, In=0, f=1 MHz - - 16 pF 1998. 10. 31 Revision No : 2 KEC 131.6 BF420 COMMON EMITTER 12 Ta=25'C 0.8 0.6 0.4 0.3 0.2 0.1 0 COMMON EMITTER VcE=10V COMMON EMITTER Ic /Ip=5 COMMON EMITTER Ta=25C COMMON EMITTER Ta=25C Ic/Ip=10 COMMON EMITTER VcE=10V 1998. 10. 31 Revision No 72 KEC 2/3BF420 Br) Cop -Cre Vep fr Ic 500 COMMON EMITTER 300PF ta=25'c TRANSITION FREQUENCY fr (MHz) QQ oo O05 8 AZ Be om aZ ay 100 ve 50 > Bu fx 30 ale) PZ od Cre 2 a 10 29 0 40 80 120 160 200 240 280 0.3 1 3 10 30 & Be COLLECTOR-BASE VOLTAGE Vcp (V) COLLECTOR CURRENT Ic (mA) OR 2 Po Ta SAFE OPERATING AREA io} E 200 TTT _T_TT a = Ig MAX.(PULSED) wn g 100 BRS ~ DN a ~ FI MAX.(CONTINUOUS) HoXe a o 50 xX _I Ne I 30 D Se me al ION = a an o 4 LEN a a LN Y 10 oy a S Hf 2 ~ 5 cH S 3 } SINGLE NONREPETITIVE 4 S PULSE Te=25'C gS 4 CURVES MUST BE DERATED 0 40 80 120 160200 8 { _ LINEARLY WITH INCREASE AMBIENT TEMPERATURE Ta (C) 05 FIN TEMPERATURE. = 3 10 30 100 300 COLLECTOR-EMITTER VOLTAGE Vcg_ (V) 1998. 10. 31 Revision No : 2 KEC 3/3