This new VSK series of MAGN-A-PAKs uses high voltage
power diodes in two basic configurations. The
semiconductors are electrically isolated from the metal
base, allowing common heatsinks and compact assemblies
to be built. They can be interconnected to form single phase
or three phase bridges and the single diode module can be
used in conjunction with the thyristor modules as a
freewheel diode. These modules are intended for general
purpose applications such as battery chargers, welders and
plating equipment and where high voltage and high current
are required (motor drives, etc.).
Document Number: 93581For technical questions within your region, please contact one of the following:www.vishay.com
Revision: 02-Jul-10DiodesAmericas@vishay.com
T
C
50 Hz7015892010 110
60 Hz7345943010 580
50 Hz246398511
60 Hz225363466
250270320A
100100100°C
393424502
A
kA2s
400 to 3000V
- 40 to 150°C
, DiodesAsia@vishay.com, DiodesEurope@vishay.com1
VSK.250, VSK.270, VSK.320 Series
Vishay Semiconductors
Standard Recovery Diodes, 250 A to 320 A
(MAGN-A-PAK Power Modules)
ELECTRICAL SPECIFICATIONS
VOLTAGE RATINGS
V
MAXIMUM REPETITIVE
TYPE NUMBER
VOLTAGE
CODE
RRM,
PEAK REVERSE VOLTAGE
V
04400500
VSK.250
VSK.270
VSK.320
08800900
1212001300
1616001700
2020002100
VSK.2703030003100
FORWARD CONDUCTION
PARAMETERSYMBOLTEST CONDITIONSVSK.250 VSK.270 VSK.320 UNITS
Maximum average forward
current at case temperature
Maximum RMS forward currentI
Maximum peak, one-cycle
forward, non-repetitive
surge current
2
Maximum I
Maximum I
Low level value of
threshold voltage
High level value of
threshold voltage
t for fusingI2t
2
t for fusingI2tt = 0.1 ms to 10 ms, no voltage reapplied246039805110kA2s
V
V
Low level forward
slope resistance
High level forward
slope resistance
Maximum forward voltage dropV
I
F(AV)
F(RMS)
I
FSM
F(TO)1
F(TO)2
r
f1
r
f2
FM
180° conduction, half sine wave
As AC switch393424502
t = 10 ms
t = 8.3 ms7345934010 580
t = 10 ms
t = 8.3 ms618078508900
t = 10 ms
t = 8.3 ms225363466
t = 10 ms
t = 8.3 ms159257330
(16.7 % x x I
T
= TJ maximum
J
(I > x I
(16.7 % x x I
T
= TJ maximum
J
(I > x I
IFM = x I
Average power = V
No voltage
reapplied
100 % V
RRM
reapplied
No voltage
reapplied
100 % V
RRM
reapplied
< I < x I
F(AV)
), TJ = TJ maximum0.920.870.86
F(AV)
< I < x I
F(AV)
), TJ = TJ maximum0.490.810.44
F(AV)
, TJ = TJ maximum, 180° conduction
F(AV)
F(TO)
x I
V
, MAXIMUM NON-REPETITIVE
RSM
PEAK REVERSE VOLTAGE
Sinusoidal half wave,
initial T
= T
J
J m
),
F(AV)
),
F(AV)
+ rf x (I
F(AV)
F(RMS)
aximum
2
)
I
RRM
V
250270320A
100100100°C
7015892010 110
590075008500
246398511
174281361
0.790.740.69
0.630.940.59
1.291.481.28V
MAXIMUM
AT 150 °C
mA
50
A
kA2s
V
m
BLOCKING
PARAMETERSYMBOLTEST CONDITIONSVALUESUNITS
Maximum peak reverse
leakage current
RMS insulation voltageV
www.vishay.comFor technical questions within your region, please contact one of the following:Document Number: 93581
2DiodesAmericas@vishay.com
I
RRM
INS
TJ = 150 °C50mA
50 Hz, circuit to base, all terminals shorted, t = 1 s3000V
Document Number: 93581For technical questions within your region, please contact one of the following:www.vishay.com
Revision: 02-Jul-10DiodesAmericas@vishay.com
, DiodesAsia@vishay.com, DiodesEurope@vishay.com3
VSK.250, VSK.270, VSK.320 Series
80
90
100
110
120
130
140
150
050100150200250300
30°
60°
90°
120°
180°
Maximum Allowable Case Temperature (°C)
Conduction Angle
Average Forward Current (A)
VSK.250 .. Seri e s
R (DC) = 0.16 K/ W
thJC
80
90
100
110
120
130
140
150
050 100 150 200 250 300 350 400
DC
30°
60°
90°
120°
180°
Maximu m Allow able C ase Tem perature (°C)
Conduction Period
Average Forward Current (A)
VSK.250 .. Se ri e s
R (DC) = 0.16 K/ W
thJC
0
50
100
150
200
250
300
050100150200250
Ave rag e Forw ard Cu rre nt (A )
RM S Lim it
Maximum Ave rag e Fo rward Power Loss (W)
Cond uct ion Ang le
180°
120°
90°
60°
30°
VSK.250.. Serie s
T = 15 0° C
J
0255075100125150
Maximum Allowable Ambient Temperature (°C)
R
=
0
.
0
2
K
/
W
D
e
l
t
a
R
t
h
S
A
0
.
0
8
K
/
W
0
.
2
K
/
W
0
.
2
5
K
/
W
0
.
4
K
/
W
0
.
1
2
K
/
W
0
.
6
K
/
W
0
100
200
300
400
500
600
050 100 150 200 250 3 00 350 400
Total RMS Output Current (A)
Maximum Tota l Forward Po wer Loss (W)
180°
(Sine)
DC
VSK.25 0.. Seri e s
Pe r Ju nc t io n
T = 15 0° C
J
Vishay Semiconductors
Fig. 1 - Current Ratings Characteristics
Fig. 2 - Current Ratings Characteristics
Standard Recovery Diodes, 250 A to 320 A
(MAGN-A-PAK Power Modules)
Fig. 3 - Forward Power Loss Characteristics
450
400
350
300
250
200
150
100
50
0
Maximum Average Forward Power Loss (W)
Fig. 4 - Forward Power Loss Characteristics
DC
180°
120°
90°
60°
30°
RM S Li m i t
050 10 0 150 200 250 300 350 400
Average Forward Current (A)
Conduction Period
VSK.250.. Series
T = 150°C
J
www.vishay.comFor technical questions within your region, please contact one of the following:Document Number: 93581
4DiodesAmericas@vishay.com