Continental Device India Limited
Data Sheet
Page 1 of 3
BD949, 951, 953, 955
NPN PLASTIC POWER TRANSISTORS
BD950, 952, 954, 956
PNP PLASTIC POWER TRANSISTORS
Power Amplifier and Switching Applications
ABSOLUTE MAXIMUM RATINGS
949 951 953 955
950 952 954 956
Collector-base voltage (open emitter)
V
CBO
max. 60
80
100 120
V
Collector-emitter voltage (open base)
V
CEO
max. 60
80
100 120
V
Collector current
I
C
max.
5.0
A
Total power dissipation up to T
mb
= 25C P
tot
max.
40
W
Junction temperature
T
j
max.
150
C
Collector-emitter saturation voltage
I
C
= 2 A; I
B
= 0.2 A
V
CEsat
max.
1.0
V
D.C. current gain
I
C
= 2 A; V
CE
= 4 V
h
FE
min.
20
RATINGS (at T
A
=25C unless otherwise specified)
Limiting values
949 951 953 955
950 952 954 956
Collector-base voltage (open emitter)
V
CBO
max. 60
80
100 120
V
Collector-emitter voltage (open base)
V
CEO
max. 60
80
100 120
V
Emitter-base voltage (open collector)
V
EBO
max.
5.0
V
Collector current
I
C
max.
5.0
A
BD949, BD951, BD953, BD955
BD950, BD952, BD954, BD956
PIN CONFIGURATION
1. BASE
2. COLLECTOR
3. EMITTER
4. COLLECTOR
B
1 2
3
J
M
G
D
H
A
O
O
K
N
L
F
E
C
DIM
MIN .
MAX.
A
ll
d
i
min
s
io
n
s
in
m
m
.
A
14.42
16.51
B
9.63
10.67
C
3.56
4.83
D
0.90
E
1.15
1.40
F
3.75
3.88
G
2.29
2.79
H
2.54
3.43
J
0.56
K
12.70
14.73
L
2.80
4.07
M
2.03
2.92
N
31.24
O
DEG 7
1
2
3
4
IS / IECQC 700000
IS / IECQC 750100
IS/ISO 9002
Lic# QSC/L- 000019.2
Continental Device India Limited
An IS/ISO 9002 and IECQ Certified Manufacturer
TO-220 Plastic Package
Continental Device India Limited
Data Sheet
Page 2 of 3
Collector current (Peak value)
I
CM
max.
8.0
A
Total power dissipation upto T
mb
=25C
P
tot
max.
40
W
Junction temperature
T
j
max.
150
C
Storage temperature
T
stg
65 to +150
C
THERMAL RESISTANCE
From junction to ambient
R
th ja
70
K /W
From junction to mounting base
R
th jmb
3.12
K /W
CHARACTERISTICS
T
amb
= 25C unless otherwise specified
949 951 953 955
950 952 954 956
Collector cutoff current
I
E
= 0; V
CB
= V
CBO
I
CBO
max.
50
A
I
E
= 0; V
CB
= V
CBO
; Tj = 150C
I
CBO
max.
1.0
mA
I
B
= 0; V
CE
= V
CEO
I
CEO
max.
0.1
mA
Emitter cut-off current
I
C
= 0; V
EB
= 5 V
I
EBO
max.
0.2
mA
Breakdown voltages
I
C
= 1 mA; I
B
= 0
V
CEO
min. 60
80
100 120
V
I
C
= 1 mA; I
E
= 0
V
CBO
min. 60
80
100 120
V
I
E
= 1 mA; I
C
= 0
V
EBO
min.
5.0
V
Saturation voltage
I
C
= 2 A; I
B
= 0.2 A
V
CEsat
*
max.
1.0
V
Base emitter on voltage
I
C
= 2 A; V
CE
= 4 V
V
BE(on)
*
max.
1.4
V
D.C. current gain
I
C
= 0.5 A; V
CE
= 4 V
h
FE
*
min.
40
I
C
= 2 A; V
CE
= 4 V
h
FE
*
min.
20
Transition frequency
I
C
= 0.5 A; V
CE
= 4 V; f = 1 MHz
f
T
min.
3
MHz
Switching time
V
CC
= 20 V; I
C
= 1 A
I
con
= 1A; I
Bon
= I
Boff
= 0.1A
R
L
= 20
Turn on time
NPN
t
on
typ.
0.3
s
Turn off time
NPN
t
off
typ.
1.5
s
PNP
t
on
typ.
0.1
s
PNP
t
off
typ.
0.4
s
* Measured under pulse conditions: t
p
300s; duty cycle
2%
BD949, BD951, BD953, BD955
BD950, BD952, BD954, BD956
Continental Device India Limited
Data Sheet
Page 3 of 3
Notes
Disclaimer
The product information and the selection guides facilitate selection of the CDIL's Discrete 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 on the CDIL Web Site/
CD is 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 Discrete 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 + 91-11-579 6150 Fax + 91-11-579 9569, 579 5290
e-mail sales@cdil.com www.cdil.com
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