Continental Device India Limited
An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company
PNP SILICON PLANAR TRANSISTORS
BCY77, BCY78
BCY79
TO-18
Metal Can Package
Low Noise Audio Amplifier input stages and Driver Applications
Complementary BCY57/58/59
ABSOLUTE MAXIMUM RATINGS
DESCRIPTION
Collector Emitter Voltage
Collector Emitter Voltage
Emitter Base Voltage
Collector Current Continuous
Base Current
Power Dissipation @ T
a
=25ºC
Power Dissipation @ T
c
=45ºC
Operating and Storage Junction
Temperature Range
THERMAL CHARACTERISTICS
Junction to Ambient in free air
Junction to Case
SYMBOL
V
CEO
V
CES
V
EBO
I
C
I
B
P
D
P
D
T
j
, T
stg
BCY77
60
60
5
100
50
BCY78
32
32
5
200
50
0.39
1.00
- 65 to +200
BCY79
45
45
5
200
50
UNIT
V
V
V
mA
mA
W
W
ºC
R
th(j-a)
R
th(j-c)
450
150
BCY77
>60
>60
>5
<100
<20
BCY78
>32
>32
>5
<100
<20
<20
<10
<10
<10
<20
<20
Typ 0.55
0.6 - 0.75
Typ 0.68
Typ 0.72
Typ 0.75
BCY79
>45
>45
>5
<100
K/W
K/W
UNIT
V
V
V
nA
nA
nA
nA
µA
µA
µA
µA
nA
V
V
V
V
V
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise )
DESCRIPTION
SYMBOL
TEST CONDITION
V
CEO
I
C
=2mA, I
B=
0
Collector Emitter Voltage
V
CES
I
C
=10µA, V
BE=
0
Collector Emitter Voltage
V
EBO
I
E
=1µA, I
C
=0
Emitter Base Voltage
I
CES
V
CE
=V
CE
max, V
BE
=0
Collector Cut off Current
V
CE
=50V, V
BE
=0
V
CE
=25V, V
BE
=0
V
CE
=35V, V
BE
=0
V
CE
=60V, V
BE
=0, T
a
=150ºC
V
CE
=25V, V
BE
=0, T
a
=150ºC
V
CE
=35V, V
BE
=0, T
a
=150ºC
V
CE
=V
CE
max, V
BE
=0.2V,
I
CEX
Collector Cut off Current
T
a
=100ºC
I
EBO
V
EB
=4V, I
C
=0
Emitter Cut off Current
V
BE (on)
I
C
=10µA, V
CE
=5V
Base Emitter on Voltage
I
C
=2mA, V
CE
=5V
I
C
=10mA, V
CE
=1V
**I
C
=50mA, V
CE
=1V
*I
C
=100mA, V
CE
=1V
*ONLY BCY78/79
BCY77_ 79Rev_4 050707E
**ONLY BCY77
Continental Device India Limited
Data Sheet
Page 1 of 5
PNP SILICON PLANAR TRANSISTORS
BCY77, BCY78
BCY79
TO-18
Metal Can Package
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise)
DESCRIPTION
Collector Emitter Saturation Voltage
SYMBOL
V
CE (sat)
TEST CONDITION
I
C
=10mA, I
B
=0.25mA
**I
C
=50mA, I
B
=1.25mA
*I
C
=100mA, I
B
=2.5mA
I
C
=10mA, I
B
=0.25mA
**I
C
=50mA, I
B
=1.25mA
*I
C
=100mA, I
B
=2.5mA
I
C
=10µA, V
CE
=5V
Group-7
Group-8
Group-9
Group-10 Only BCY78/79
I
C
=2mA, V
CE
=5V
BCY77/78/79
Group-7
Group-8
Group-9
Group-10 Only BCY78/79
I
C
=10mA, V
CE
=1V
BCY77/78/79 & Group-7,
Group-8
Group-9
Group-10 Only BCY78/79
*I
C
=100mA, V
CE
=1V
BCY77/78/79 & Group-7
Group-8
Group-9
Group-10 Only BCY78/79
**I
C
=50mA, V
CE
=1V
BCY77/78/79 & Group-7
Group-8
Group-9
MIN
TYP
MAX
0.25
0.80
0.80
0.85
1.20
1.20
UNIT
V
V
V
V
V
V
Base Emitter Saturation Voltage
V
BE (sat)
0.60
0.70
0.70
140
30
40
100
120
120
180
250
380
80
120
160
240
40
45
60
60
40
45
60
DC Current Gain
h
FE
630
220
310
460
630
400
630
1000
DYNAMIC CHARACTERISTICS
DESCRIPTION
Noise Figure
Transition frequency
Collector Base Capacitance
Emitter Base Capacitance
*ONLY BCY78/79
BCY77_ 79Rev_4 050707E
SYMBOL
NF
f
T
C
cbo
C
ebo
TEST CONDITION
I
C
=0.2mA,V
CE
=5V, Rg=2kΩ,
f=1kHz, B=200Hz
I
C
=10mA,V
CE
=5V,f=100MHz
V
CB
=10V, I
E
=0, f=1MHz
V
EB
=0.5V, I
C
=0, f=1MHz
MIN
TYP
MAX
6
UNIT
dB
MHz
180
7
15
pF
pF
**ONLY BCY77
Continental Device India Limited
Data Sheet
Page 2 of 5
PNP SILICON PLANAR TRANSISTORS
BCY77, BCY78
BCY79
TO-18
Metal Can Package
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise)
SMALL SIGNAL CHARACTERISTICS
DESCRIPTION
Small Signal Current Gain
SYMBOL
h
fe
TEST CONDITION
I
C
=2mA, V
CE
=5V, f=1kHz
BCY77/78/79
Group-7
Group-8
Group-9
Group-10 Only BCY78/79
I
C
=2mA, V
CE
=5V, f=1kHz
Group-7
Group-8
Group-9
Group-10 Only BCY78/79
I
C
=2mA, V
CE
=5V, f=1kHz
Group-7
Group-8
Group-9
Group-10 Only BCY78/79
I
C
=2mA, V
CE
=5V, f=1kHz
Group-7
Group-8
Group-9
Group-10 Only BCY78/79
MIN
125
125
175
250
350
1.6
2.5
3.2
TYP
MAX
700
250
350
500
700
4.5
6.0
8.5
UNIT
Input Impedance
h
ie
7.5
1.5
2.0
2.0
3.0
30
50
60
100
MIN
TYP
35
50
400
80
800
5.0
50
150
250
200
800
15
50
150
300
150
800
MAX
kΩ
kΩ
kΩ
kΩ
x10
-4
x10
-4
-4
x10
x10
-4
µS
µS
µS
µS
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Voltage Feedback Ratio
h
re
Output Admittance
h
oe
SWITCHING TIMES
DESCRIPTION
Delay Time
Rise Time
Turn on Time
Storage Time
Fall Time
Turn off Time
Delay Time
Rise Time
Turn on Time
Storage Time
Fall Time
Turn off Time
Delay Time
Rise Time
Turn on Time
Storage Time
Fall Time
Turn off Time
BCY77_ 79Rev_4 050707E
SYMBOL
TEST CONDITION
t
d
BCY77/78/79
t
r
I
C
=10mA, I
B1
=I
B2
=1mA,
t
on
V
BB
=3.6V, R
1
=R
2
=5kΩ,
t
s
t
f
R
L
=990Ω
t
off
t
d
t
r
BCY78/79
I
C
=100mA,
t
on
I
B1=
I
B2
=10mA, V
BB
=5V,
t
s
R
1
=500
Ω,
R
2
=700Ω, R
L
=98Ω
t
f
t
off
t
d
t
r
BCY77
I
C
=50mA,
t
on
I
B1=
I
B2
=5mA, V
BB
=4.7V,
t
s
R
1
=1kΩ, R
2
=1.3kΩ, R
L
=195Ω
t
f
t
off
150
Continental Device India Limited
Data Sheet
Page 3 of 5
BCY77, BCY78
BCY79
TO-18
Metal Can Package
A
B
TO-18 Metal Can Package
G
2
1
H
L
J
D
3
K
F
3
2
1
PIN CONFIGURATION
1. EMITTER
2. BASE
3. COLLECTOR
Component Disposal Instructions
1. CDIL Semiconductor Devices are RoHS compliant, customers are requested to please
dispose as per prevailing Environmental Legislation of their Country.
2.
In Europe, please dispose as per EU Directive 2002/96/EC on Waste Electrical and
Electronic Equipment (WEEE).
Packing Detail
PACKAGE
Details
TO-18
1K/
polybag
STANDARD PACK
Net Weight/ t
Qy
350 gm/ pcs
1K
Size
3" x 7.5" x 7.5"
INNER CARTON BOX
Qty
5K
Size
17" x 15" x 13.5"
OUTER CARTON BOX
Qty
80K
Gr Wt
34 kgs
BCY77_ 79Rev_4 050707E
Continental Device India Limited
Data Sheet
All diminsions in mm.
DIM
A
B
C
D
E
F
G
H
J
K
L
MIN
MAX
5.24
5.84
4.52
4.97
4.31
5.33
0.40
0.53
—
0.76
—
1.27
—
2.97
0.91
1.17
0.71
1.21
12.70
—
45 DEG
E
C
Page 4 of 5
Customer Notes
BCY77, BCY78
BCY79
TO-18
Metal Can Package
Disclaimer
The product information and the selection guides facilitate selection of the CDIL's Semiconductor Device(s) best suited for application in
your product(s) as per your requirement. It is recommended that you completely review our Data Sheet(s) so as to confirm that the
Device(s) meet functionality parameters for your application. The information furnished in the Data Sheet and on the CDIL Web Site/CD
are believed to be accurate and reliable. CDIL however, does not assume responsibility for inaccuracies or incomplete information.
Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any CDIL product; neither does it convey
any license under its patent rights nor rights of others. These products are not designed for use in life saving/support appliances or
systems. CDIL customers selling these products (either as individual Semiconductor Devices or incorporated in their end products), in
any life saving/support appliances or systems or applications do so at their own risk and CDIL will not be responsible for any damages
resulting from such sale(s).
CDIL strives for continuous improvement and reserves the right to change the specifications of its products without prior notice.
CDIL is a registered Trademark of
Continental Device India Limited
C-120 Naraina Industrial Area, New Delhi 110 028, India.
Telephone + 91-11-2579 6150, 4141 1112 Fax + 91-11-2579 5290, 4141 1119
email@cdil.com www.cdilsemi.com
BCY77_ 79Rev_4 050707E
Continental Device India Limited
Data Sheet
Page 5 of 5
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