FEATURES
MECHANICAL DATA
Case: TO-92 Plastic Package
Weight: approx. 0.18 g
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Small Signal Transistors (NPN)
B
CE
.181 (4.6)
mi
n. .492
(
12.5)
.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)
4/98
NPN Silicon Epitaxial Transistor
for switching and amplifier applications.
Especially suitable for AF-driver and
low-power output stages.
As complementary type, the PNP
transistor 2N4126 is recommended.
2N4124
Symbol Value Unit
Collector-Emitter Voltage V
CEO
25 V
Collector-Base Voltage V
CBO
30 V
Emitter-Base Voltage V
EBO
5V
Collector Current I
C
200 mA
Peak Collector Current I
CM
800 mA
Base Current I
B
50 mA
Power Dissipation at T
amb
= 25 °C P
tot
625
1)
mW
Junction Temperature T
j
150 °C
Storage Temperature 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.
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