BF420 GE | Alldatasheet
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FEATURES
Case: TO-92 Plastic Package Weight: approx. 0.18 g MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Small Signal Transistors (NPN) C BE .181 (4.6) .142 (3.6) Dimensions in inches and (millimeters) TO-92 Ratings at 25 °C ambient temperature unless otherwise specified .098 (2.5) max. ∅ .022 (0.55) BF420, BF422 Symbol Value Unit Collector-Base Voltage BF420 BF422 VCBO VCBO 300 250 V V Collector-Emitter Voltage BF422 VCEO 250 V Collector-Emitter Voltage BF420 VCER 300 V Emitter-Base Voltage V EBO 5V Collector Current I C 50 mA Peak Collector Current I CM 100 mA Power Dissipation at Tamb = 25 °C P tot 8301) mW Junction T emperature T j 150 °C Storage T emperature Range T S –65 to +150 °C 1) Valid provided that leads are kept at ambient temperature at a distance of 2 mm from case NPN Silicon Epitaxial Planar Transistors especially suited for application in class-B video output stages of TV receivers and monitors. As complementary types, the PNP transistors BF421 and BF423 are recommended
ELECTRICAL CHARACTERISTICS
Ratings at 25 °C ambient temperature unless otherwise specified Symbol Min. Typ. Max. Unit Collector-Base Breakdown VoltageBF420 at IC = 100 µA, IB = 0 BF422 V(BR)CBO V(BR)CBO 300 250 V V Collector-Emitter Breakdown VoltageBF422 at IC = 10 m A, IE = 0 V(BR)CEO 250 – – V Collector-Emitter Breakdown VoltageBF420 at RBE = 2.7 kΩ , IC = 10 mA V(BR)CER 300 – – V Emitter-Base Breakdown Voltage at IE = 100 µA, IB = 0 V(BR)EBO 5––V Collector-Base Cutoff Current at VCB = 200 V , IE = 0 ICBO ––1 0 n A Collector-Emitter Cutoff Current at RBE = 2.7 kΩ , VCE = 250 V at RBE = 2.7 kΩ , VCE = 200 V , Tj = 150 °C ICER ICER nA µA Collector Saturation Voltage at IC = 30 mA, IB = 5 mA VCEsat ––0 . 6 V DC Current Gain at VCE = 20 V , IC = 25 mA hFE 50 – – – Gain-Bandwidth Product at VCE = 10 V , IC = 10 mA fT 60 – – MHz Feedback Capacitance at VCE = 30 V , IC = 0, f = 1 MHz C re ––1 . 6 p F Thermal Resistance Junction to Ambient AirRthJA – – 150 1) K/W 1) Valid provided that leads are kept at ambient temperature at a distance of 2 mm from case BF420, BF422