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 VCES V
Collector -Emitter Voltage VCEO V
Emitter Base Voltage VEBO V
Collector Current ICA
Collector Peak Current ICM
Total Power Dissipation upto Ta=25º C Ptot W
Tc=25º C
Storage Temperature Range Tstg ºC
Max Operating Junction Temperature TjºC
THERMAL RESISTANCE
Thermal Resistance Junction - Case Rth (j-c) ºC/W
ELECTRICAL CHARACTERISTICS (TC=25ºC unless specified otherwise)
.
DESCRIPTION SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Collector Cut off Current ICES VCE=VCES, VBE=0 1.0 mA
Collector Emitter Sustaining Voltage VCEO (sus)*IB =0, IC=100mA 700 V
Emitter Base Voltage VEBO IE=10mA, IC =0 5.0 V
BU508F, AF
Emitter Cut-off Current IEBO VEB=5V, IC=0 300 mA
BU508DF
DC Current Gain hFE IC=4.5A, VCE=5V 2.25
Diode forward Voltage VF IF=4.0A 2.0 V
BU508DF
Collector Emitter Saturation Voltage VCE(sat) * IC=4.5A, IB=2.0A 1.0 V
BU508AF, DF
IC=4.5A, IB=2.0A 5.0 V
BU508F
Base Emitter Saturation Voltage VBE(sat) * IC=4.5A, IB=2.0A 1.5 V
SWITCHING TIME
Storage Time tsIC=4.5A,hFE=2.5,VCC=140V 7.0 µs
Fall Time tfLC=0.9mH, LB=3µH0.5 µs
* Pulse test: Pulse Duration
<
300
µµ
s , Duty cycle
<
1.5%.
8
15
34
60
- 65 to +150
150
2.08
VALUE
1500
700
5
BC
Transys
Electronics
LI
M
ITE
D
BU508F, BU508AF,
BU508DF
TO- 3P Fully Isolated
Plastic Package
TO-3P (TO-218) Plastic Package
Pin Configuration
1.
2. Collector
3.
Base
Emitter
123
All diminsions in mm.
DIM MIN MAX
A
B
C
D
E
F33.25
20.75 21.25
11.50 12.25
1.00 1.30
18.75 21.65
15.80
5.20
3.80
Ø 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
Ø 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/QtyDetails
STANDARD PACK INNER CARTON BOX
Qty
OUTER CARTON BOX
Qty Gr WtSize Size
Packing Detail