Continental Device India Limited
An IS/ISO 9002 and IECQ Certified Manufacturer
NPN POWER TRANSISTORS
BU508F, BU508AF,
BU508DF
TO- 3P Fully Isolated
Plastic Package
Fast Switching, High Voltage Devices for use in Horizontal Deflection Circuits of Colour TV
ABSOLUTE MAXIMUM RATINGS
DESCRIPTION
SYMBOL
UNIT
Collector -Emitter Voltage
V
CES
V
Collector -Emitter Voltage
V
CEO
V
Emitter Base Voltage
V
EBO
V
Collector Current
I
C
A
Collector Peak Current
I
CM
Total Power Dissipation upto T
a
=25 C
P
tot
W
T
c
=25 C
Storage Temperature Range
T
stg
C
Max Operating Junction Temperature
T
j
C
THERMAL RESISTANCE
Thermal Resistance Junction - Case
R
th (j-c)
C/W
ELECTRICAL CHARACTERISTICS (T
C
=25C unless specified otherwise)
.
DESCRIPTION
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Collector Cut off Current
I
CES
V
CE
=V
CES
, V
BE
=0
1.0
mA
Collector Emitter Sustaining Voltage
V
CEO (sus)
*
I
B
=0, I
C
=100mA
700
V
Emitter Base Voltage
V
EBO
I
E
=10mA, I
C
=0
5.0
V
BU508F, AF
Emitter Cut-off Current
I
EBO
V
EB
=5V, I
C
=0
300
mA
BU508DF
DC Current Gain
h
FE
I
C
=4.5A, V
CE
=5V
2.25
Diode forward Voltage
V
F
I
F
=4.0A
2.0
V
BU508DF
Collector Emitter Saturation Voltage
V
CE(sat) *
I
C
=4.5A, I
B
=2.0A
1.0
V
BU508AF, DF
I
C
=4.5A, I
B
=2.0A
5.0
V
BU508F
Base Emitter Saturation Voltage
V
BE(sat) *
I
C
=4.5A, I
B
=2.0A
1.5
V
SWITCHING TIME
Storage Time
t
s
I
C
=4.5A,h
FE
=2.5,V
CC
=140V
7.0
s
Fall Time
t
f
L
C
=0.9mH, L
B
=3
H
0.5
s
* Pulse test: Pulse Duration <300
s , Duty cycle < 1.5%.
8
15
34
60
- 65 to +150
150
2.08
VALUE
1500
700
5
IS/ISO 9002
Lic# QSC/L- 000019.2
B
C
E
Continental Device India Limited
Data Sheet
Page 1 of 3
BU508F, BU508AF,
BU508DF
TO- 3P Fully Isolated
Plastic Package
TO-3P (TO-218) Plastic Package
Pin Configuration
1.
2. Collector
3.
Base
Emitter
1
2
3
All diminsions in mm.
DIM
MIN
MAX
A
B
C
D
E
F
33.25
20.75
21.25
11.50
12.25
1.00
1.30
18.75
21.65
15.80
5.20
3.80
3.30
14.50
15.10
0.40
3.15
3.45
5.21
5.72
18.75
19.25
16.40
5.70
4.20
3.60
36.75
0.60
G
H
K
L
M
N
P
S
N
A
D
B
C
H
M
G
E
S
F
1
2
3
K
P
P
L
TO-3P
100 pcs/polybag 628 gm/100 pcs
3" x 7.5" x 7.5"
0.3K
17" x 15" x 13.5"
4.8K
42 kgs
PACKAGE
Net Weight/Qty
Details
STANDARD PACK
INNER CARTON BOX
Qty
OUTER CARTON BOX
Qty
Gr Wt
Size
Size
Packing Detail
Continental Device India Limited
Data Sheet
Page 2 of 3
Notes
BU508F, BU508AF,
BU508DF
TO- 3P Fully Isolated
Plastic Package
BU508F_BU508DFRev230202E
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 in the Data Sheet and
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
Continental Device India Limited
Data Sheet
Page 3 of 3
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