Nxp Semiconductors BU2708AF BU Transistor NPN SOT 199 8A 825V BU2708AF Data Sheet

Product codes
BU2708AF
Page of 8
Philips Semiconductors
Product specification
 Silicon Diffused Power Transistor
BU2708AF 
THERMAL RESISTANCES
SYMBOL
PARAMETER
CONDITIONS
TYP.
MAX.
UNIT
R
th j-hs
Junction to heatsink
without heatsink compound
-
3.7
K/W
R
th j-hs
Junction to heatsink
with heatsink compound
-
2.8
K/W
R
th j-a
Junction to ambient
in free air
35
-
K/W
ISOLATION LIMITING VALUE & CHARACTERISTIC
T
hs
 = 25 ˚C unless otherwise specified
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
isol
Repetitive peak voltage from all
R.H. 
 65 % ; clean and dustfree
-
2500
V
three terminals to external
heatsink
C
isol
Capacitance from T2 to external f = 1 MHz
-
22
-
pF
heatsink
STATIC CHARACTERISTICS
T
hs
 = 25 ˚C unless otherwise specified
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
I
CES
Collector cut-off current 
2
V
BE
 = 0 V; V
CE
 = V
CESMmax
-
-
1.0
mA
I
CES
V
BE
 = 0 V; V
CE
 = V
CESMmax
;
-
-
2.0
mA
T
j
 = 125 ˚C
I
EBO
Emitter cut-off current
V
EB
 = 6 V; I
C
 = 0 A
-
-
70
µ
A
BV
EBO
Emitter-base breakdown voltage
I
B
 = 1 mA
7.5
13.5
-
V
V
CEOsust
Collector-emitter sustaining voltage
I
B
 = 0 A; I
C
 = 100 mA;
825
900
-
V
L = 25 mH
V
CEsat
Collector-emitter saturation voltage
I
C
 = 4 A; I
B
 = 1.33 A
-
-
1.0
V
V
BEsat
Base-emitter saturation voltage
I
C
 = 4 A; I
B
 = 1.33 A
0.83
0.91
1.00
V
h
FE
DC current gain
I
C
 = 100 mA; V
CE
 = 5 V
-
21
-
h
FE
I
C
 = 4 A; V
CE
 = 1 V
3
6
7.3
DYNAMIC CHARACTERISTICS
T
hs
 = 25 ˚C unless otherwise specified
SYMBOL
PARAMETER
CONDITIONS
TYP.
MAX.
UNIT
Switching times (line deflection
I
Csat
 = 4 A; I
B(end)
 = 0.8 A; -I
BM
 = I
CM
/2;
circuit 16 kHz)
L
B
 = 6 
µ
H; -V
BB
 = 4 V; L
C
 = 1 mH;
C
FB
 = 12.2 nF
t
s
Turn-off storage time
4.8
5.5
µ
s
t
f
Turn-off fall time
0.4
0.52
µ
s
Measured with half sine-wave voltage (curve tracer).
September 1997
2
Rev 1.200