Owner's manual

Document Number: 94375 For technical questions, contact: ind-modules@vishay.com
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 Allowable Ambient Temperature (°C)
R
=
0
.
0
1
K
/
W
-
D
e
l
t
a
R
t
h
S
A
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 100150200250300350400450500
DC
180°
120°
90°
60°
30°
RM S Li m i t
Conduction Period
Maximum Average On-state Power Loss (W)
Average On-state Current (A)
ST3 0 3 S Se r i e s
T = 12C
J
3000
3500
4000
4500
5000
5500
6000
6500
7000
110100
Numb er Of Eq ua l Amplitud e Half Cycle Current Pulses (N)
Pe a k Ha lf Sine Wave On-state Current (A)
Initia l T = 125°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
J
ST3 0 3 S Se r i e s
At Any Rated Load Condition And With
Rat e d V Ap p lied Follow ing Surg e .
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 Conduction May Not Be Maintained.
Peak Half Sine Wave On-state Current (A)
Init ial T = 125°C
No Voltage Reapplied
Rated V Reapplied
RRM
J
ST3 0 3 S Se r i e s
Maximum Non Repetitive Surge Current
100
1000
10000
12345678
T = 2 5 ° C
J
Instantaneous On-state Current (A)
Instantaneous On-state Voltage (V)
T = 1 2 5 ° C
J
ST3 0 3 S Se r i e s
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10
Sq u a r e W a v e Pu l se D u r a t i o n ( s)
thJC
Transient Thermal Impedance Z (K/W)
St e a d y St a t e V a l u e
R = 0. 1 0 K/ W
(DC Operation)
thJC
ST3 0 3 S Se r i e s