BF421, BF423
Small Signal Transistors (PNP)
TO-92
.181 (4.6) min. .492 (12.5) .181 (4.6) .142 (3.6)
FEATURES ♦ PNP Sili...
BF421, BF423
Small Signal
Transistors (
PNP)
TO-92
.181 (4.6) min. .492 (12.5) .181 (4.6) .142 (3.6)
FEATURES ♦
PNP Silicon Epitaxial
Transistors
especially suited for application in class-B video output stages of TV receivers and monitors.
♦ As complementary types, the
NPN tran-
sistors BF420 and BF422 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
BF421 BF423 BF423 BF421
–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
BF421, BF423
ELECTRICAL CHARACTERISTICS
Ratings at 25 °C ambient temperature unless otherwise specified
Symbol Collector-Base Breakdown Voltage at –IC = 100 µA, IE = 0 Collector-Emitter Breakdown Voltage at –IC = 10 mA, IB = 0 Collector-Emitter Breakdown Voltage at RBE = 2.7 kΩ, at –IC = 10 mA Emitter-Base Breakdown Voltage at –IE = 100 µA, IC = 0 Collector-Base Cutoff Current at –VCB = 200 V, IE = 0 Collector-Emitter Cutoff ...