BF423

DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D186 BF421; BF423 PNP high-voltage transistors Product specification Supersedes data of September 1994 File under Discrete Semiconductors, SC04 1996 Dec 09 Philips Semiconductors Product specification PNP high-voltage transistors FEATURES Low feedback capacitance. APPLICATIONS Class-B video output stages in colour television and professional monitor equipment. DESCRIPTION PNP transistors in a TO-92 plastic package. NPN complements: BF420 and BF422. 1 handbook, halfpage 2 3 BF421; BF423 PINNING PIN 1 2 3 base collector emitter DESCRIPTION 2 1 3 MAM285 Fig.1 Simplified outline (TO-92) and symbol. QUICK REFERENCE DATA SYMBOL VCBO PARAMETER collector-base voltage BF421 BF423 VCEO collector-emitter voltage BF421 BF423 ICM Ptot hFE Cre fT peak collector current total power dissipation DC current gain feedback capacitance transition frequency Tamb ≤ 25 °C IC = −25 mA; VCE = −20 V IC = ic = 0; VCE = −30 V; f = 1 MHz IC = −10 mA; VCE = −10 V; f = 100 MHz open base − − − − 50 − 60 −300 −250 −100 830 − 1.6 − pF MHz V V mA mW open emitter − − −300 −250 V V CONDITIONS MIN. MAX. UNIT 1996 Dec 09 2 Philips Semiconductors Product specification PNP high-voltage transistors LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VCBO BF421 BF423 VCEO collector-emitter voltage BF421 BF423 VEBO IC ICM IBM Ptot Tstg Tj Tamb Note 1. Transistor mounted on a printed-circuit board. THERMAL CHARACTERI...