BF257 MICRO-ELECTRONICS

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es | Ye BF 257 - BF258 - BF259 , , be iY. YO NPN HIGH VOLTAGE VIDEO AMPLIFIER . Ae ee | (NRE Garo Nie | THE BF257, BF258, BF259 ARE.NPN SILICON CASE 10-39 PLANAR TRANSISTORS DESIGNED FOR HIGH VOLTAGE VIDEO OUTPUT STAGES IN BLACK- Of, AND-WHITE AND COLOUR TV-RECEIVERS. | ‘CEB ABSOLUTE MAXIMUM RATINGS BR257 BF258 BF259 Collector-Base Voltage Vopo 160V. 250V 300V Collector-Emitter Voltage Vero 160V 250V 300V Emitter-Base Voltage VEBO 5v Collector Current Ic 100mA \\ Total Power Dissipation @ Tc <25°C PLot Sw of @ Ta< 2500 800mW Operating Junction & Storage Temperature T5, Tstg -65 to 200°C THERMAL RESISTANCE Junction to Case O50 35°C/w max. Junction to Ambient Oja 220°¢/w max. re 5 Ptot ve Ta 100 SAFE OPERATING AREA (D.C.) N Seesae iin eee time rneriit | ESSE F-EH Seaaiiiiinemstin semeai | . 4 a CC NSN 3 | [| tT Re aaa 30 [TTI Avs “TT Ci rot IIT Re COO TS | EEE CUTTING NI w 7OOCTT Xe CO ° DEANE | PTT TTT Ke TT (ma) 10 ASHES SH ary DNS: Eee Se | . PTT Tt Te [| a a LS 1 [ {| A TINE] ; 5 ash INC SR teat sig NO a 27S c jCCETTT REN LTT ee 254i , 0 100 200 1 10 100 1000 | ! Ta (°C) Vor (v) 27 38 HUNG TO ROAD, KWUN TONG, HONG KONG. TELEX <?3510 ~ MICRO ELECTRONICS LTD. agua rors F 0, BOXIS477 CABLE ADORESS “MICROTRON" | FAX: 3-410321 eee Neeeeeeeeeeeeeeeeeeeeeeerreeeee eee

  • PARAMETER SYMBOL we von vax MAN tax UNIT| TEST CONDITIONS | , ollector-Base Breakdown Voltage| BVoxo 160 250 300 v Ig=0.1lmA Ig=0 ollector-Emitter Breakdown LVcgo * 160 250 300 v Ic=10mA Ip=0 Voltage mitter-Base Breakdown Voltage BV EEO 5 5 5 v Ig=0.1lmA Ip¢=0 ollector Cutoff Current IcBo 50 nA | VcB=100V Ig=0 50 nA | VcB=200V Ig=0 50} nA | Vop=250V Ig=0 nitter Cutoff Current TERO 50 50 50] nA | Vep=3V Ic=0 .C. Current Gain ire * 25 25 25 Ic=30mA VCE=10V ollector-Emitter Saturation Vor(sat)* 1 1 1} Vv Ic=30mA Ip=6mA Voltage arrent Gain-Bandwidth Product | fp 50 50 50 MHz | Ig=l5mA Vog=20V dllector-Base Capacitance Ceb 5 5 5| pF Yopes0v Ig=0 '=1MHz * Pulse Test : Pulse Width=0.3mS, Duty Cycle=1% i ' Reg (NORMALIZED) vs Ig “fp vs Ig OT TMT TMI 2-250 200 FO Tt CLOUT 0 ai a pt ee LT TN Bo CIN Sern tx go LATIN

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