BC177
BC178
BC179
MECHANICAL DATA
Dimensions in mm (inches)
5 .8 4 (0 .2 3 0 )
5 .3 1 (0 .2 0 9 )
4 .9 5 (0 .1 9 5 )
4 .5 2 (0 .1 7 8 )
GENERAL PURPOSE
SMALL SIGNAL
PNP BIPOLAR TRANSISTOR
APPLICATIONS
5 .3 3 (0 .2 1 0 )
4 .3 2 (0 .1 7 0 )
)
)
0
0
1
7
2
1
.
.
0
0
(
(
3
2
3
3
.
.
5
4
)
0
0
5
.
.
0 .4 8 (0 .0 1 9 )
0 .4 1 (0 .0 1 6 )
d ia .
n
0
i
(
m
7
.
2
1
The BC 177, BC 178 & BC 179 are silicon
epitaxial planar PNP transistors in TO-18
metal case. They are suitablefor use in
driver audio stages, low noise input audio
stages and as low power, high gain general
purpose transistors.
2 .5 4 (0 .1 0 0 )
N o m .
1 2 .7 (0 .5 0 0 )
m in .
FEATURES
• SILICON NPN
!
• HERMETICALLY SEALED TO18
• SCREENING OPTIONS AVAILABLE
TO–18 METAL PACKAGE
Underside View
PIN 1 – Emitter
PIN 2 – Base
PIN 3 – Collector
BC177
-50V
-45V
-50V
BC178
-30V
-25V
-30V
-5V
-0.1A
0.3W
500W/°C
0.75W
200W/°C
-65 to +175°C
BC179
-25V
-20V
-25V
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25°C unless otherwise stated)
V
CBO
V
CEO
V
CES
V
EBO
I
C
P
D
P
D
T
j,
T
stg
Collector – Base Continuous Voltage
Collector – Emitter Continuous Voltage With Zero Base Current
Collector – Emitter Continuous Voltage With Base Shortcircuited to Emitter
Emitter – Base Continuous Voltage Reverse Voltage
Continuous Collector Current
Power Device Dissipation @ T
A
= 25°C
Derate above 25°C
Power Device Dissipation @ T
C
= 25°C,
Derate above 25°C
Operating and Storage Junction to Case
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
Document Number 5760
Issue 1
BC177
BC178
BC179
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise stated)
Parameter
I
CES
Collector-Emitter Leakage Current
Test Conditions
V
CE
= -20V
I
C
= -10µA
V
BE
= 0
T
amb
= 150°C
BC177
BC178
BC179
I
C
= -2mA
BC177
BC178
BC179
I
C
= 0
BC177A
BC177B
BC178A
BC178B
BC179A
BC179B
I
B
= -0.5mA
I
B
= -5mA
I
B
= -0.5mA
I
B
= -5mA
V
CE
= -5V
V
CE
= -5V
f = 100MHz
V
CE
= -5V
BC177
BC178
BC179
V
CB
= -10V
f = 1kHz
I
C
= -0.2mA
I
C
= -0.2mA
I
C
= -10mA
I
C
= -100mA
I
C
= -10mA
I
C
= -100mA
I
C
= -2mA -5V
I
C
= -10mA
Min.
Typ.
Max. Unit
-100
-10
nA
µA
V
-50
-30
-25
-45
-25
-20
-5
125
240
125
240
125
240
-0.075
-0.2
-0.72
-0.86
-0.55
-0.64
200
2
2
1.2
5.0
10
10
4
-0.75
-0.8
260
500
260
500
260
500
-0.25
V
(BR)CBO
Collector Base Breakdown Voltage
V
(BR)CEO
V
(BR)EBO
Collector Emitter Breakdown Voltage
Emitter Breakdown Voltage
I
E
= 0
I
E
= -10µA
V
CE
= -5V
I
C
= -2mA
f = 1kHz
V
V
h
FE
DC Current Gain
—
V
CE(sat)
V
BE(sat)
V
BE(on)
fT
Collector – Emitter Saturation Voltage
Base – Emitter Saturation Voltage
Base – Emitter on Voltage
Transition Frequency
V
V
V
MHz
NF
C
cbo
Noise Figure
Collector Base Capacitance
dB
pF
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
Document Number 5760
Issue 1
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