Continental Device India Limited
An IS/ISO 9002 and IECQ Certified Manufacturer
IS/ISO 9002
Lic# QSC/L- 000019.2
NPN POWER TRANSISTORS
BU508F, BU508AF,
BU508DF
TO- 3P Fully Isolated
Plastic Package
B
C
E
Fast Switching, High Voltage Devices for use in Horizontal Deflection Circuits of Colour TV
ABSOLUTE MAXIMUM RATINGS
DESCRIPTION
Collector -Emitter Voltage
Collector -Emitter Voltage
Emitter Base Voltage
Collector Current
Collector Peak Current
Total Power Dissipation upto T
a
=25º C
T
c
=25º C
Storage Temperature Range
Max Operating Junction Temperature
THERMAL RESISTANCE
Thermal Resistance Junction - Case
SYMBOL
V
CES
V
CEO
V
EBO
I
C
I
CM
P
tot
T
stg
T
j
VALUE
1500
700
5
8
15
34
60
- 65 to +150
150
UNIT
V
V
V
A
W
ºC
ºC
R
th (j-c)
2.08
ºC/W
ELECTRICAL CHARACTERISTICS (T
C
=25ºC unless specified otherwise)
.
TEST CONDITIONS
DESCRIPTION
SYMBOL
I
CES
V
CE
=V
CES
, V
BE
=0
Collector Cut off Current
V
CEO (sus)
*
I
B
=0, I
C
=100mA
Collector Emitter Sustaining Voltage
V
EBO
I
E
=10mA, I
C
=0
Emitter Base Voltage
BU508F, AF
I
EBO
V
EB
=5V, I
C
=0
Emitter Cut-off Current
BU508DF
h
FE
I
C
=4.5A, V
CE
=5V
DC Current Gain
V
F
I
F
=4.0A
Diode forward Voltage
BU508DF
V
CE(sat) *
I
C
=4.5A, I
B
=2.0A
Collector Emitter Saturation Voltage
BU508AF, DF
I
C
=4.5A, I
B
=2.0A
BU508F
Base Emitter Saturation Voltage
V
BE(sat) *
I
C
=4.5A, I
B
=2.0A
SWITCHING TIME
Storage Time
Fall Time
MIN
700
5.0
TYP
MAX
1.0
UNIT
mA
V
V
mA
300
2.25
2.0
1.0
5.0
1.5
V
V
V
V
t
s
t
f
I
C
=4.5A,h
FE
=2.5,V
CC
=140V
L
C
=0.9mH, L
B
=3µH
7.0
0.5
µs
µs
* Pulse test: Pulse Duration <300µs , Duty cycle < 1.5%.
µ
Continental Device India Limited
Data Sheet
Page 1 of 3
Notes
BU508F, BU508AF,
BU508DF
TO- 3P Fully Isolated
Plastic Package
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
BU508F_BU508DFRev230202E
Continental Device India Limited
Data Sheet
Page 3 of 3
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