BF420, BF422
Small Signal Transistors (NPN)
TO-92
.181 (4.6) min. .492 (12.5) .181 (4.6) .142 (3.6)
♦ NPN Silicon Epita...
BF420, BF422
Small Signal
Transistors (
NPN)
TO-92
.181 (4.6) min. .492 (12.5) .181 (4.6) .142 (3.6)
♦
NPN Silicon Epitaxial Planar
Transistors
especially suited for application in class-B video output stages of TV receivers and monitors.
FEATURES
♦ As complementary types, the
PNP
transistors BF421 and BF423 are recommended
max. ∅ .022 (0.55) .098 (2.5) E C B
MECHANICAL DATA
Case: TO-92 Plastic Package Weight: approx. 0.18 g
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 °C ambient temperature unless otherwise specified
Symbol Collector-Base Voltage Collector-Emitter Voltage Collector-Emitter Voltage Emitter-Base Voltage Collector Current Peak Collector Current Power Dissipation at Tamb = 25 °C Junction Temperature Storage Temperature Range
1)
Value 300 250 250 300 5 50 100 8301) 150 –65 to +150
Unit V V V V V mA mA mW °C °C
BF420 BF422 BF422 BF420
VCBO VCBO VCEO VCER VEBO IC ICM Ptot Tj TS
Valid provided that leads are kept at ambient temperature at a distance of 2 mm from case
4/98
BF420, BF422
ELECTRICAL CHARACTERISTICS
Ratings at 25 °C ambient temperature unless otherwise specified
Symbol Collector-Base Breakdown Voltage at IC = 100 µA, IB = 0 Collector-Emitter Breakdown Voltage at IC = 10 mA, IE = 0 Collector-Emitter Breakdown Voltage at RBE = 2.7 kΩ, IC = 10 mA Emitter-Base Breakdown Voltage at IE = 100 µA, IB = 0 Collector-Base Cutoff Current at VCB = 200 V, IE = 0 Collector-Emitter Cutoff Current at R...