C&H Technology ST303SPbF Series - Manual (Page 6)

Document Number: 94375 For technical questions, contact: [email protected] www.vishay.com
Revision: 30-Apr-08 5
ST303SPbF Series
Inverter Grade Thyristors
(Stud Version), 300 A
Vishay High Power Products
Fig. 4 - On-State Power Loss Characteristics
Fig. 5 - Maximum Non-Repetitive Surge Current
Fig. 6 - Maximum Non-Repetitve Surge Current
Fig. 7 - On-State Voltage Drop Characteristics
Fig. 8 - Thermal Impedance Z
thJC
Characteristics
25 50 75 100 125
Maximum Allowab le Ambient Temperature (°C)
R
=
0.0
1
K/
W
- D
elt
a
R
th
SA
0.3 K/
W
0.5 K/ W
0.2
K/ W
0.1
2 K
/ W
0.0
6
K/W
0.0
3
K/
W
0
100
200
300
400
500
600
700
800
900
0 50 100 150 200 250 300 350 400 450 500
DC
180°
120°
90°
60°
30°
RMS Limit
Conduction Period
Ma
x
imu
m
A
v
e
ra
g
e
O
n
-s
ta
te
P
o
w
e
r
Lo
ss
(
W
)
Average On-state Current (A)
ST303S Series
T = 125°C
J
3000
3500
4000
4500
5000
5500
6000
6500
7000
1 10 100
Numb er Of Eq ual Amplitude Half Cycle Current Pulses (N)
Pe
a
k
Ha
lf
S
in
e
W
a
v
e
O
n
-s
ta
te
C
u
rr
e
n
t
(A
)
Initial T = 125°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
J
ST303S Series
At Any Rated Load Condition And With
Rated V Applied Following Surge.
RRM
3000
3500
4000
4500
5000
5500
6000
6500
7000
7500
8000
0.01 0.1 1
Pulse Train Duration (s)
Versus Pulse Train Duration. Control
Of Conduc tion May Not Be Maintained.
P
e
a
k
H
a
lf
S
in
e
W
a
v
e
O
n
-s
ta
te
C
u
rr
e
n
t (
A
)
Initial T = 125°C
No Voltage Reapplied
Rated V Reapplied
RRM
J
ST303S Series
Maximum Non Repetitive Surge Current
100
1000
10000
1 2 3 4 5 6 7 8
T = 25°C
J
In
st
a
n
ta
n
e
o
u
s On
-s
ta
te
Cu
rr
e
n
t (
A
)
Instantaneous On-state Voltage (V)
T = 125°C
J
ST303S Series
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10
Square Wave Pulse Duration (s)
th
J
C
Tr
a
n
si
en
t T
h
e
rm
a
l I
m
pedan
c
e Z
(
K
/W
)
Steady State Value
R = 0.10 K/ W
(DC Operation)
thJC
ST303S Series