BU508DF.PDF

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199620726 UNPDF
[
BU208D
BU508D/BU508DFI
HIGH VOLTAGE FAST-SWITCHING
NPN POWER TRANSISTORS
n
BU208D AND BU508DFI ARE STM
PREFERRED SALESTYPES
HIGH VOLTAGE CAPABILITY
n
U.L. RECOGNISED ISOWATT218 PACKAGE
(U.L. FILE # E81734 (N)
n
TO-3
JEDEC TO-3 METAL CASE
n
1
NPN TRANSISTOR WITH INTEGRATED
FREEWHEELING DIODE
n
2
APPLICATIONS:
n
HORIZONTAL DEFLECTION FOR COLOUR
TV
DESCRIPTION
The BU208D, BU508D and BU508DFI are
manufactured using Multiepitaxial Mesa
technology for cost-effective high performance
and uses a Hollow Emitter structure to enhance
switching speeds.
3
3
2
2
TO-218
1
ISOWATT218
1
INTERNAL SCHEMATIC DIAGRAM
For TO-3 :
C = Tab
E = Pin2.
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V CES
Collector-Emitter Voltage (V BE =0)
1500
V
V CEO
Collector-Emitter Voltage (I B = 0)
700
V
V EBO
Emitter-Base Voltage (I C =0)
10
V
I C
Collector Current
8
A
I CM
Collector Peak Current (t p <5ms)
15
A
TO - 3
TO - 218 ISOWATT218
P tot
Total Dissipation at T c =25 o C
150
125
50
W
T stg
Storage Temperature
-65 to 175 -65 to 150 -65 to 150
o C
T j
Max. Operating Junction Temperature
175
150
150
o C
June 1998
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199620726.002.png
BU208D / BU508D / BU508DFI
THERMAL DATA
TO-3 TO-218 ISOWATT218
R thj-case Thermal Resistance Junction-case
Max
1
1
2.5
o C/W
ELECTRICAL CHARACTERISTICS (T case =25 o C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
I CES
Collector Cut-off
Current (V BE =0)
V CE =1500V
V CE =1500V
T j =125 o C
1
2
mA
mA
I EBO
Emitter Cut-off Current
(I C =0)
V EB =5V
300
mA
V CEO(sus) Collector-Emitter
Sustaining Voltage
I C = 100 m A
700
V
V CE(sat)
*
Collector-Emitter
Saturation Voltage
I C =4.5A
I B =2A
1
V
V BE(s at)
*
Base-Emitter
Saturation Voltage
I C =4.5A
I B =2A
1.3
V
t s
t f
INDUCTIVE LOAD
Storage Time
Fall Time
I C =4.5A h FE =2.5 V CC =140V
L C =0.9mH L B =3
m
7
550
ms
ns
V F
Diode Forward Voltage I F =4A
2
V
f T
Transition Frequency
I C =0.1A V CE =5V f=5MHz
7
MHz
*
Pulsed: Pulse duration = 300
m
s, duty cycle 1.5 %
Safe Operating Area (TO-3)
Safe Operating Area (TO-218/ISOWATT218)
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H
199620726.003.png
BU208D / BU508D / BU508DFI
DC Current Gain
Collector Emitter Saturation Voltage
Base Emitter Saturation Voltage
Switching Time Inductive Load
Switching Time Inductive Load (see figure 1)
Switching Time Percentance vs. Case
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199620726.004.png
BU208D / BU508D / BU508DFI
Figure 1: Inductive Load Switching Test Circuit.
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199620726.005.png
BU208D / BU508D / BU508DFI
TO-3 MECHANICAL DATA
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
11.00
13.10
0.433
0.516
B
0.97
1.15
0.038
0.045
C
1.50
1.65
0.059
0.065
D
8.32
8.92
0.327
0.351
E
19.00
20.00
0.748
0.787
G
10.70
11.10
0.421
0.437
N
16.50
17.20
0.649
0.677
P
25.00
26.00
0.984
1.023
R
4.00
4.09
0.157
0.161
U
38.50
39.30
1.515
1.547
V
30.00
30.30
1.187
1.193
P
A
D
G
C
R
P003F
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199620726.001.png

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