BF422 MICRO-ELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 1
Technical content
th OILIVUN FLANAR ECPPAAIN\\R LT RIAINOIOIUP | A ELECTRONICS | GENERAL DESCRIPTION : MECHANICAL OUTLINE | The BF422 is a NPN silicon planar . | TO-92B | epitaxial transistor. It features high i [ - 1 voltage and is intended for high voltage i 1 class A output stage of audio frequency : F amplifiers, video amplifiers in colour ‘ ! ake ied television receivers including grid drive ‘ and in driver stages of high voltage line Ec sB deflection circuits. i It is complementary to BF423. » : ' a eS ee THERMAL CHARACTERISTICS : 1 Thermal Resistance from Junction to Ambient, 6(j-amb) ‘| 0.15°C/mW (mounted on a copper plate of length 3mm max and area lem?) ' . | Maximum Collector Junction Temperature, Tj : 150°C Storage Temperature Range, Tstg . -65°C to +150°C ABSOLUTE MAXIMUM RATINGS + | ontinuous Power Dissipation @ Ta 25°C, P max | 830mW (mounted on a copper plate of length 3mm max.and area lem?) | Continuous Collector Current, I¢ max ! 20mA Peak Collector Current, Igy max | 100mA Collector-Base Voltage, Vcgo 250V Collector-Emitter Voltage, Vopg 250V Emitter-Base Voltage, Vppo SV ELECTRICAL CHARACTERISTICS @ TA=25°C (unless otherwise stated) : Collector-Base Breakdown Voltage BVcBO 250 V_ | Tc=l0uA Ig=0 } collector-Emitter Breakdown Voltage | LVc¢Eo 250 v | Ic=lmA—Ig=0 | mitter-Base Breakdown Voltage BVEBO 5 Vv | Igsl0uA = Ig=0 | Collector Cutoff Current Topo 10 nA Vop=200V I,=0 | Collector Cutoff Current IcER 10 | uA | Vog=200V Rpg=10Kohm| TJ7150°C | Emitter Cutoff Current EB lo | uA | Vgp=5V — Ic=0 [pD.c. Current Gain hE 50 Vog=20V Ig=25mA | ransition Frequency fy 60 MHz | Vcp=10V Ig=10mA High Frequency Knee -Voltage~ Vork (HF) * 20 v Ig=25mA — Tj=150°C | Feedback Capacitance Cob 2 pF | Vcg=30V Ig=0 . f=1MHz [Feedback Time Constant Cotrpy' 100 ' ps Vop=20V Ig=-30mA . £=10.7MHz | The value of Collector-Emitter Voltage at which the small signal gain measured | in a pratical circuit, has dropped to 80% of the gain at Vog=50V. | | i MICRO ELECTRONICS LTD. ivin'tone #5: soxssar7 caste avoness “MicROTRON® FAX: 34102 TELEPHONE:- 3-430181-6 -2-899363, -S-OSf4ES / lJ. BmP — eC aaa