Thyristor Modules
Thyristor/Diode Modules
Preliminary Data Sheet
PSKT 255
PSKH 255
I
TRMS
I
TAVM
V
RRM
= 2x 450 A
= 2x 250 A
= 1200-1800 V
V
RSM
V
DSM
V
1300
1500
1700
1900
V
RRM
V
DRM
V
1200
1400
1600
1800
Type
3
2
76
5
4
PSKT
PSKT
PSKT
PSKT
255-12io1
255-14io1
255-16io1
255-18io1
PSKH
PSKH
PSKH
PSKH
255-12io1
255-14io1
255-16io1
255-18io1
1
3
6 7 1
5 4 2
Symbol
I
TRMS
, I
FRMS
I
TAVM
, I
FAVM
I
TSM
, I
FSM
Test Conditions
T
VJ
= T
VJM
T
C
= 85°C; 180° sine
T
VJ
= 45°C;
V
R
= 0
T
VJ
= T
VJM
V
R
= 0
t = 10 ms (50 Hz)
t = 8.3 ms (60 Hz)
t = 10 ms (50 Hz)
t = 8.3 ms (60 Hz)
t = 10 ms (50 Hz)
t = 8.3 ms (60 Hz)
t = 10 ms (50 Hz)
t = 8.3 ms (60 Hz)
repetitive, I
T
= 860 A
non repetitive, I
T
= I
TAVM
Maximum Ratings
450
250
9000
9600
7800
8600
405 000
382 000
304 000
307 000
100
500
1000
120
60
20
10
-40...+130
130
-40...+125
A
A
A
A
A
A
A
2
s
A
2
s
As
A
2
s
2
PSKT
3
1
5 42
PSKH
∫
i
2
dt
T
VJ
= 45°C
V
R
= 0
T
VJ
= T
VJM
V
R
= 0
(di/dt)
cr
T
VJ
= T
VJM
f =50 Hz, t
P
=200 µs
V
D
= 2/3 V
DRM
I
G
= 1 A,
di
G
/dt = 1 A/µs
A/µs
A/µs
V/µs
W
W
W
V
°C
°C
°C
V~
V~
Features
International standard package
Direct copper bonded Al
2
O
3
-ceramic
with copper base plate
Planar passivated chips
Isolation voltage 3600 V~
UL registered E 148688
Keyed gate/cathode twin pins
●
●
●
●
●
●
(dv/dt)
cr
P
GM
P
GAV
V
RGM
T
VJ
T
VJM
T
stg
V
ISOL
M
d
Weight
T
VJ
= T
VJM
; V
DR
= 2/3 V
DRM
R
GK
=
∞;
method 1 (linear voltage rise)
T
VJ
= T
VJM
I
T
= I
TAVM
t
P
= 30 µs
t
P
= 500 µs
Applications
Motor control, softstarter
Power converter
Heat and temperature control for
industrial furnaces and chemical
processes
Lighting control
Solid state switches
●
●
●
●
●
50/60 Hz, RMS
I
ISOL
≤
1 mA
t = 1 min
t=1s
3000
3600
●
●
Mounting torque (M6)
Terminal connection torque (M8)
Typical including screws
4.5-7/40-62 Nm/lb.in.
11-13/97-115 Nm/lb.in.
750
g
●
Advantages
Simple mounting
Improved temperature and power
cycling capability
Reduced protection circuits
Data according to IEC 60747 and refer to a single thyristor/diode unless otherwise stated.
2002 POWERSEM reserves the right to change limits, test conditions and dimensions
POWERSEM GmbH, Walpersdorfer Str. 53
D - 91126 Schwabach
Phone: 09122 - 9764 - 0 FAX: 09122 - 9764 - 20
Symbol
I
RRM
, I
DRM
V
T
, V
F
V
T0
r
T
V
GT
I
GT
V
GD
I
GD
I
L
I
H
t
gd
t
q
Q
S
I
RM
R
thJC
R
thJK
d
S
d
A
a
Test Conditions
T
VJ
= T
VJM
; V
R
= V
RRM
; V
D
= V
DRM
I
T
, I
F
= 600 A; T
VJ
= 25°C
For power-loss calculations only (T
VJ
= 130°C)
V
D
= 6 V;
V
D
= 6 V;
T
VJ
= T
VJM
;
T
VJ
= T
VJM
;
T
VJ
= 25°C
T
VJ
= -40°C
T
VJ
= 25°C
T
VJ
= -40°C
V
D
= 2/3 V
DRM
V
D
= 2/3 V
DRM
Characteristic Values
40
1.36
0.8
0.68
2
3
150
220
0.25
10
200
150
2
typ.
200
760
275
0.140
0.07
0.18
0.09
mA
V
V
mΩ
V
V
mA
mA
V
mA
mA
V
G
10
1: I
GT
, T
VJ
= 140°C
130°C
V
2: I
GT
, T
VJ
= 25°C
3: I
GT
, T
VJ
= -40°C
3
2
1
1
4
5
6
T
VJ
= 25°C; t
P
= 30 µs; V
D
= 6 V
I
G
= 0.45 A; di
G
/dt = 0.45 A/µs
T
VJ
= 25°C; V
D
= 6 V; R
GK
=
∞
T
VJ
= 25°C; V
D
= 1/2 V
DRM
I
G
= 1 A; di
G
/dt = 1 A/µs
T
VJ
= T
VJM
; I
T
= 300 A, t
P
= 200 µs; -di/dt = 10 A/µs
V
R
= 100 V; dv/dt = 50 V/µs; V
D
= 2/3 V
DRM
T
VJ
= 125°C; I
T
, I
F
= 300 A; -di/dt = 50 A/µs
per
per
per
per
thyristor (diode); DC current
module
thyristor (diode); DC current
module
4: P
GM
= 20 W
I
GD
, T
VJ
= 140°C
130°C
5: P
GM
= 60 W
6: P
GM
= 120 W
10
0
I
G
10
1
A
10
2
mA
µs
µs
µC
A
K/W
K/W
K/W
K/W
0.1
10
-3
10
-2
10
-1
Fig. 1 Gate trigger characteristics
100
T
VJ
= 25°C
µs
t
gd
typ.
Limit
other values
see Fig. 8/9
Creeping distance on surface
Creepage distance in air
Maximum allowable acceleration
12.7 mm
9.6 mm
50 m/s
2
10
Optional accessories for modules
Keyed Gate/Cathode twin plugs with wire length = 350 mm, gate = yellow, cathode = red
1
0.01
0.1
1
I
G
A
10
Dimensions in mm (1 mm = 0.0394")
PSKT 255
M8x20
Fig. 2 Gate trigger delay time
PSKH 255
M8x20
2002 POWERSEM reserves the right to change limits, test conditions and dimensions
POWERSEM GmbH, Walpersdorfer Str. 53
D - 91126 Schwabach
Phone: 09122 - 9764 - 0 FAX: 09122 - 9764 - 20
10000
I
TSM
A
50 Hz
80 % V
RRM
T
VJ
= 45°C
T
VJ
= 130°C
I
2
dt
10
6
400
I
TAVM
A
I
FAVM
300
8000
A
2
s
T
VJ
= 45°C
DC
180° sin
120°
60°
30°
6000
10
5
4000
T
VJ
= 130°C
200
100
2000
0
0.001
0.01
0.1
s
t
1
10
4
1
t
ms
10
0
0
25
50
75
100
T
C
125 °C 150
Fig. 3 Surge overload current
I
TSM
, I
FSM
: Crest value, t: duration
P
tot
500
W
400
Fig. 4
∫i
2
dt versus time (1-10 ms)
Fig. 4a Maximum forward current
at case temperature
R
thKA
K/W
0.1
0.2
0.3
0.4
0.6
0.8
1.0
Fig. 5 Power dissipation versus on-
state current and ambient
temperature (per thyristor or
diode)
300
200
DC
180° sin
120°
60°
30°
100
0
0
100
200
300
A
0
25
50
75
100
125 °C 150
TA
I
TAVM/
I
FAVM
2000
P
tot
W
R
thKA
K/W
0.03
0.06
0.1
0.15
0.2
0.3
0.4
1500
Fig. 6 Three phase rectifier bridge:
Power dissipation versus direct
output current and ambient
temperature
1000
Circuit
B6
3xPSKT255 or
3xMCC255 or
3xPSKH255
3xMCD255
500
0
0
200
400
600
A
I
dAVM
0
25
50
75
100
125 °C 150
T
A
POWERSEM GmbH, Walpersdorfer Str. 53
2002 POWERSEM reserves the right to change limits, test conditions and dimensions
D - 91126 Schwabach
Phone: 09122 - 9764 - 0 FAX: 09122 - 9764 - 20
P
tot
2000
W
R
thKA
K/W
0.03
0.06
0.1
0.15
0.2
0.3
0.4
1500
Fig. 7 Three phase AC-controller:
Power dissipation versus RMS
output current and ambient
temperature
1000
500
Circuit
W3
3xMCC255 or
3xPSKT255 or
3xPSKH255
3xMCD255
0
0
100
200
300
400
500 A 0
I
RMS
25
50
75
100
125
T
A
°C 150
0.25
K/W
Z
thJC
0.20
Fig. 8 Transient thermal impedance
junction to case (per thyristor or
diode)
R
thJC
for various conduction angles d:
d
30°
60°
120°
180°
DC
0.15
R
thJC
(K/W)
0.139
0.148
0.156
0.176
0.214
0.10
DC
180°
120°
60°
30°
0.05
Constants for Z
thJC
calculation:
0.00
10
-3
i
10
-2
R
thi
(K/W)
0.0066
0.0358
0.0831
0.0129
t
i
(s)
0.00054
0.098
0.54
12
10
-1
10
0
10
1
s
t
10
2
1
2
3
4
0.30
K/W
0.25
Z
thJK
0.20
Fig. 9 Transient thermal impedance
junction to heatsink (per thyristor
or diode)
R
thJK
for various conduction angles d:
d
DC
180°
120°
60°
30°
R
thJK
(K/W)
0.179
0.188
0.196
0.216
0.254
0.15
30°
60°
120°
180°
DC
0.10
0.05
Constants for Z
thJK
calculation:
i
10
-2
0.00
10
-3
R
thi
(K/W)
0.0066
0.0358
0.0831
0.0129
0.04
t
i
(s)
0.00054
0.098
0.54
12
12
10
-1
10
0
10
1
s
t
10
2
1
2
3
4
5
POWERSEM GmbH, Walpersdorfer Str. 53
2002 POWERSEM reserves the right to change limits, test conditions and dimensions
D - 91126 Schwabach
Phone: 09122 - 9764 - 0 FAX: 09122 - 9764 - 20
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