C&H Technology 70HF(R) Series - Manual (Page 5)

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4 Revision: 20-Jun-08
70HF(R) Series
Vishay High Power Products Standard Recovery Diodes
(Stud Version), 70 A
Fig. 5 - Forward Power Loss Characteristics
Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Forward Power Loss Characteristics
0 20 40 60 80 100 120 140 160 180
Maximum Allowable Ambient Temperature (°C)
1.5
K/W
2 K
/W
3 K/W
5 K/W
R
=
0
.3
K
/W
-
D
e
lta
R
th
S
A
0
.5
K
/W
0
.7
K
/W
1
K
/W
4 K/W
0
10
20
30
40
50
60
70
80
90
0 10 20 30 40 50 60 70 80
Average Forward Current (A)
RMS Limit
M
a
xi
m
u
m
A
v
e
ra
g
e
F
o
rw
a
rd
P
o
w
e
r L
o
ss
(W
)
Conduction Angle
180°
120°
90°
60°
30°
70HF(R) Series
(100V to 1200V)
T = 180°C
J
0 20 40 60 80 100 120 140 160 180
Maximum Allowable Ambient Temperature (°C)
5 K/W
3 K/W
2 K
/W
1.5
K/W
1
K/W
0.7
K
/W
0.
5
K
/W
R
=
0.
3
K
/W
-
D
elt
a
R
th
SA
0
20
40
60
80
100
120
0 20 40 60 80 100 120
DC
180°
120°
90°
60°
30°
Average Forward Current (A)
RMS Limit
Ma
x
im
u
m
Av
er
ag
e F
o
rw
a
rd Po
w
e
r L
o
s
s
(
W
)
Conduction Period
70HF(R) Series
(100V to 1200V)
T = 180°C
J
0 25 50 75 100 125 150
Maximum Allowable Ambient Temperature (°C)
1.5
K/W
2 K
/W
3 K/W
5 K/W
R
=
0.
3
K
/W
-
D
e
lta
R
th
S
A
0.5
K
/W
4 K/W
0.7
K
/W
1 K
/W
0
10
20
30
40
50
60
70
80
90
0 10 20 30 40 50 60 70 80
Average Forward Current (A)
RMS Limit
M
a
xi
m
u
m
A
v
e
ra
g
e
Fo
rw
a
rd
P
o
w
e
r L
o
s
s
(W
)
Conduction Angle
180°
120°
90°
60°
30°
70HF(R) Series
(1400V to 1600V)
T = 150°C
J