NPN SILICON PLANAR TRANSISTORS
BC171 , A, B
BC172, A, B, C
BC174, A, B
TO-92
Plastic Package
DESCRIPTION
SYMBOL TEST CONDITION
MIN
VALUE
TYP
MAX
UNIT
DC Current Gain
BC171A, 2A, 4A
BC171B, 2B, 4B
BC172C
h
FE
V
CE
=5V,I
C
=10µA
90
150
270
V
CE
=5V,I
C
=2mA
120
120
120
120
180
380
V
CE
=5V,I
C
=100mA
120
180
300
450
800
800
220
460
800
BC174
BC171
BC172
BC171A, 2A, 4A
BC171B, 2B, 4B
BC172C
BC171A, 2A, 4A
BC171B, 2B, 4B
BC172C
Base Emitter Saturation Voltage
Collector Emitter Saturation
Voltage
Base Emitter on Voltage
DYNAMIC CHARACTERISTICS
Transition Frequency
BC171
BC172
BC174
Output Capacitance
Input Capacitance
C
ob
C
ib
f
T
I
C
=10mA, V
CE
=5V
f=100MHz
V
BE(sat)
I
C
=10mA,I
B
=0.5mA
V
CE (sat )
I
C
=10mA,I
B
=0.5mA
I
C
=100mA,I
B
=5mA
V
BE (on)
I
C
=2mA, V
CE
= 5V
0.7
0.25
0.60
0.55
0.70
V
V
V
V
150
150
150
4.50
10
MHz
I
E
=0, V
CB
=10V
f=1MHz
Ic=0, V
EB
=0.5V
f=1MHz
V
CE
=5V,I
C
=2mA
f=1KH
Z
pF
pF
Small Signal Current Gain
BC171, 2, 4
BC171A, 2A, 4A,
BC171B, 2B, 4B
BC172C
Noise Figure
BC171
BC172
BC174
| h
fe
|
125
125
240
450
900
260
500
900
10
10
10
dB
NF
V
CE
=5V,I
C
=0.2mA
R
S
=2KΩ,f=1KH
Z,
f=200Hz
Data Sheet
Continental Device India Limited
Page 2 of 4
CDIL [ Continental Device India Limited ]
