VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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Standard Recovery Diodes
(MAGN-A-PAK Power Modules), 250 A to 320 A
FEATURES
• High voltage
• Electrically isolated base plate
• 3000 VRMS isolating voltage
• Industrial standard package
• Simplified mechanical designs, rapid assembly
• High surge capability
• Large creepage distances
• UL approved file E78996
• Designed and qualified for industrial level
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
DESCRIPTION / APPLICATIONS
This VS-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.)
PRIMARY CHARACTERISTICS
IF(AV) 250 A to 320 A
Type Modules - diode, high voltage
Package MAGN-A-PAK
Circuit
configuration
Two diodes doubler circuit,
two diodes common cathode, single diode
MAGN-A-PAK
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL CHARACTERISTICS VSK.250.. VSK.270.. VSK.320.. UNITS
IF(AV)
250 270 320 A
TC100 100 100 °C
IF(RMS) 393 424 502
A
IFSM
50 Hz 7015 8920 10 110
60 Hz 7345 9430 10 580
I2t50 Hz 246 398 511 kA2s
60 Hz 225 363 466
I2t 2460 3980 5110 kA2s
VRRM 400 to 2000 400 to 3000 400 to 2000 V
TJ-40 to +150 °C
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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ELECTRICAL SPECIFICATIONS
VOLTAGE RATINGS
TYPE NUMBER VOLTAGE
CODE
VRRM, MAXIMUM REPETITIVE
PEAK REVERSE VOLTAGE
V
VRSM, MAXIMUM NON-REPETITIVE
PEAK REVERSE VOLTAGE
V
IRRM MAXIMUM
AT 150 °C
mA
VS-VSK.250
VS-VSK.270
VS-VSK.320
04 400 500
50
08 800 900
12 1200 1300
16 1600 1700
20 2000 2100
VS-VSK.270 30 3000 3100
FORWARD CONDUCTION
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
VSK.250 VSK.270 VSK.320
Maximum average forward
current at case temperature IF(AV) 180° conduction, half sine wave 250 270 320 A
100 100 100 °C
Maximum RMS forward current IF(RMS) As AC switch 393 424 502
A
Maximum peak, one-cycle forward,
non-repetitive surge current IFSM
t = 10 ms No voltage
reapplied
Sinusoidal half wave,
initial
TJ = TJ maximum
7015 8920 10 110
t = 8.3 ms 7345 9340 10 580
t = 10 ms 100 %
VRRM
reapplied
5900 7500 8500
t = 8.3 ms 6180 7850 8900
Maximum I2t for fusing I2t
t = 10 ms No voltage
reapplied
246 398 511
kA2s
t = 8.3 ms 225 363 466
t = 10 ms 100 %
VRRM
reapplied
174 281 361
t = 8.3 ms 159 257 330
Maximum I2t for fusing I2t t = 0.1 ms to 10 ms, no voltage reapplied 2460 3980 5110 kA2s
Low level value of threshold voltage VF(TO)1
(16.7 % x x IF(AV) < I < x IF(AV)),
TJ = TJ maximum 0.79 0.74 0.69 V
High level value of threshold voltage VF(TO)2 (I > x IF(AV)), TJ = TJ maximum 0.92 0.87 0.86
Low level forward slope resistance rf1 (16.7 % x x IF(AV) < I < x IF(AV)),
TJ = TJ maximum 0.63 0.94 0.59 m
High level forward slope resistance rf2 (I > x IF(AV)), TJ = TJ maximum 0.49 0.81 0.44
Maximum forward voltage drop VFM
IFM = x IF(AV), TJ = TJ maximum, 180° conduction
Average power = VF(TO) x IF(AV) + rf x (IF(RMS))21.29 1.48 1.28 V
BLOCKING
PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS
Maximum peak reverse
leakage current IRRM TJ = 150 °C 50 mA
RMS insulation voltage VINS 50 Hz, circuit to base, all terminals shorted, t = 1 s 3000 V
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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Note
• The table above shows the increment of thermal resistance RthJC when devices operate at different conduction angles than DC
THERMAL AND MECHANICAL SPECIFICATIONS
PARAMETER
SYMBOL
TEST CONDITIONS VALUES UNITS
VSK.250 VSK.270 VSK.320
Maximum junction operating and
storage temperature range TJ, TStg -40 to +150 °C
Maximum thermal resistance,
junction to case per junction RthJC DC operation 0.16 0.125 0.125
K/W
Maximum resistance, case to heat sink
per module RthCS Mounting surface flat, smooth and
greased 0.035
Mounting
torque
± 10 %
MAGN-A-PAK to heatsink A mounting compound is recommended
and the torque should be rechecked
after a period of about 3 hours to allow
for the spread of the compound.
4 to 6
Nm
Busbar to MAGN-A-PAK 8 to 10
Approximate weight 800 g
30 oz.
Case style MAGN-A-PAK
R CONDUCTION PER JUNCTION
DEVICE
SINUSOIDAL CONDUCTION
AT TJ MAXIMUM
RECTANGULAR CONDUCTION
AT TJ MAXIMUM UNITS
180° 120° 90° 60° 30° 180° 120° 90° 60° 30°
VSK.250 0.009 0.010 0.014 0.020 0.032 0.007 0.011 0.015 0.021 0.033
K/WVSK.270 0.008 0.012 0.014 0.020 0.032 0.007 0.011 0.015 0.020 0.033
VSK.320 0.008 0.010 0.013 0.020 0.032 0.007 0.011 0.015 0.020 0.033
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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Fig. 1 - Current Ratings Characteristics
Fig. 2 - Current Ratings Characteristics
Fig. 3 - Forward Power Loss Characteristics
Fig. 4 - Forward Power Loss Characteristics
Fig. 5 - Forward Power Loss Characteristics
80
90
100
110
120
130
140
150
0 50 100 150 200 250 300
30° 60° 90°
120°
180°
Maximum Allowable Case Temperature (°C)
Conduction Angle
Average Forward Current (A)
VSK.250.. Se ries
R (DC) = 0.16 K/ W
thJC
80
90
100
110
120
130
140
150
0 50 100 150 200 250 300 350 400
DC
30°
60°
90°
120°
180°
Maximum Allowable Case Temperature (°C)
Conduction Period
Average Forward Current (A)
VSK.250.. Se ries
R (DC) = 0.16 K/ W
thJC
0
50
100
150
200
250
300
0 50 100 150 200 250
Avera g e Fo rw ard Curre nt (A)
RM S Li m it
Maximum Average Forward Power Loss (W)
Conduc tion Angle
180°
120°
90°
60°
30°
VSK.250.. Se rie s
T = 1 5 0° C
J
0
50
100
150
200
250
300
350
400
450
0 50 100 150 200 250 300 350 400
DC
180°
120°
90°
60°
30°
Average Forward Current (A)
RM S Li m i t
Maximum Average Forward Power Loss (W)
Conduction Period
VSK.250.. Series
T = 150°C
J
0 25 50 75 100 125 150
Maximum Allowable Ambient Temperature (°C)
R=0.02K
/W-DeltaR
thS
A
0.08K
/W
0.2K
/W
0.25K
/W
0.4K
/W
0.12K
/W
0.6K
/W
0
100
200
300
400
500
600
0 50 100 150 200 250 300 350 400
Total RMS Output Current (A)
Maximum Total Forward Power Loss (W)
180°
(Sine)
DC
VSK.250.. Se rie s
Pe r Ju n c t io n
T = 15 0 ° C
J
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Forward Power Loss Characteristics
Fig. 8 - Maximum Non-Repetitive Surge Current Fig. 9 - Maximum Non-Repetitive Surge Current
0 255075100125150
Maximum Allowable Ambient Temperature (°C)
0.08K
/W
0.1K
/W
0.16K/W
0.25K
/W
0.03K/W
0.05K/W
0.35K
/W
R=0.01K/W-DeltaR
thS
A
0
200
400
600
800
1000
1200
0 100 200 300 400 500
Total Output Current (A)
Ma ximum Tota l Po wer Lo ss (W)
180°
(Sine)
180°
(Rec t)
2 x VSK.250.. Series
Single Phase Bridge
Connected
T = 1 5 0 ° C
J
0 255075100125150
Maximum Allowable Ambient Temperature (°C)
0.25K
/W
R=0.005K/W-DeltaR
thS
A
0.02K
/W
0.04K/W
0.06K/W
0.08K
/W
0.12K/W
0.16K
/W
0.35K
/W
0
200
400
600
800
1000
1200
1400
1600
1800
0 100200300400500600700800
Total Output Current (A)
Maximum Total Power Loss (W)
120°
(Rect)
3 x VSK.250.. Series
Three Phase Bridge
Connected
T = 1 5 0 ° C
J
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
110100
Peak Half Sine Wave Forward Current (A)
Nu mb er Of Eq u a l Am p litu d e Ha lf C yc le Cu rre n t Pulse s (N)
Initia l T = 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
J
VSK.250.. Se ries
Pe r Ju n c t i o n
At Any Ra ted Loa d Cond ition And With
Rated V Applied Following Surge.
RRM
1500
2000
2500
3000
3500
4000
4500
5000
5500
6000
6500
7000
0.01 0.1 1
Peak Half Sine Wave Forward Current (A)
Pu lse Tra in Du r a t io n ( s)
Maximum Non Repetitive Surge Current
Initia l T = 150°C
No Volt ag e Reap p lied
Ra t e d V Re a p p l i e d
RRM
Versus Pulse Train Duration.
J
VSK.250.. Series
Pe r Ju n c t io n
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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Fig. 10 - Forward Voltage Drop Characteristics
Fig. 11 - Thermal Impedance ZthJC Characteristics
Fig. 12 - Current Ratings Characteristics
Fig. 13 - Current Ratings Characteristics
Fig. 14 - Forward Power Loss Characteristics
Fig. 15 - Forward Power Loss Characteristics
10
100
1000
10000
0.5 1 1.5 2 2.5 3 3.5 4
T = 25 ° C
J
Instantaneous Forward Current (A)
Instantaneous Forward Voltage (V)
VSK.250.. Series
Pe r Ju n c t io n
T = 15 0 ° C
J
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10 100
Square Wave Pulse Duration (s)
thJC
VSK.250.. Series
Pe r Ju n c t io n
Steady State Value:
R = 0. 1 6 K/ W
(DC Operation)
thJC
Transient Thermal Impedance Z (K/W)
80
90
100
110
120
130
140
150
0 50 100 150 200 250 300
30°
60°
90°
120°
180°
Maximum Allowable Case Temperature (°C)
Conduction Angle
Average Forward Current (A)
VSK.270.. Se rie s
R (DC) = 0.125 K/ W
thJC
80
90
100
110
120
130
140
150
0 100 200 300 400 500
DC
30° 60°
90°
120°
180°
Maximum Allowable Case Temperature (°C)
Conduction Period
Average Forward Current (A)
VSK.270.. Se ries
R (DC) = 0.125 K/ W
thJC
0
50
100
150
200
250
300
350
400
0 50 100 150 200 250 300
Average Forward Current (A)
RM S Li m it
Maximum Average Forward Power Loss (W)
Conduction Angle
180°
120°
90°
60°
30°
VSK.270.. Se rie s
T = 1 5 0 ° C
J
0
50
100
150
200
250
300
350
400
450
500
0 50 100 150 200 250 300 350 400 450
DC
180°
120°
90°
60°
30°
Average Forward Current (A)
RM S Li m i t
Maximum Average Forward Power Loss (W)
Cond uc tion Period
VSK.270.. Series
T = 1 5 0 ° C
J
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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Fig. 16 - Forward Power Loss Characteristics
Fig. 17 - Forward Power Loss Characteristics
Fig. 18 - Forward Power Loss Characteristics
0 25 50 75 100 125 150
0.25K
/W
0.3K
/W
0.1K
/W
0.16K
/W
0.4K
/W
Maximum Allowable Ambient Temperature (°C)
0.06K
/W
R=0.02K
/W-DeltaR
thS
A
0.6K
/W
0
100
200
300
400
500
600
700
0 50 100 150 200 250 300 350 400
DC
180°
(Sine)
Maximum Total Forward Power Loss (W)
To t a l RM S O u t p u t C u r r e n t ( A )
VSK.270.. Serie s
Pe r Ju n c t io n
T = 1 5 0 ° C
J
0 255075100125150
0.06K/W
0.1K
/W
0.16K
/W
0.25K
/W
0.4K
/W
0.6K
/W
Maximum Allowable Ambient Temperature (°C)
R=0.02K
/W-DeltaR
0.04K/W
thS
A
0
300
600
900
1200
1500
1800
2100
2400
0200400600800
120°
(Rec t)
Maximum Total Power Loss (W)
Total Output Current (A)
3 x VSK.270.. Serie s
Three Phase Bridge
Connected
T = 150°C
J
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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Fig. 19 - Maximum Non-Repetitive Surge Current
Fig. 20 - Maximum Non-Repetitive Surge Current
Fig. 21 - Forward Voltage Drop Characteristics
Fig. 22 - Thermal Impedance ZthJC Characteristics
Fig. 23 - Current Ratings Characteristics
Fig. 24 - Current Ratings Characteristics
2000
3000
4000
5000
6000
7000
8000
110100
Pea k Ha lf Sine Wave Forward Current (A)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Initial T = 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated V Applied Following Surge.
RRM
J
VSK.270.. Serie s
Pe r Ju n c t io n
2000
3000
4000
5000
6000
7000
8000
9000
0.01 0.1 1
Pe a k Ha l f Sine Wave Forward Current (A)
Pu lse Tr a in D u ra t io n ( s)
Ma ximum Non Repet itive Surge Current
VSK.270.. Series
Pe r Ju n c t i o n
Initia l T = 150°C
No Volta g e Rea p plied
Ra t e d V Re a p p l i e d
Versus Pulse Train Dura tion.
RRM
J
10
100
1000
10000
0.511.522.533.54
T = 25 ° C
J
Instantaneous Forward Current (A)
Instantaneous Forward Voltage (V)
T = 150°C
J
VSK.270.. Se rie s
Pe r Ju n c t i o n
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10 100
Squ a re Wave Pulse Dura tion (s)
thJC
Steady State Value:
R = 0.45 K/ W
(DC Operation)
thJC
VSK.270.. Serie s
Pe r Ju n c t i o n
Transient Thermal Impeda nc e Z (K/ W)
80
90
100
110
120
130
140
150
0 50 100 150 200 250 300 350
30°
60°
90°
120°
180°
Maximum Allowable Case Temperature (°C)
Conduction Angle
Average Forward Current (A)
VSK.320.. Se rie s
R ( D C ) = 0 . 125 K/ W
thJC
80
90
100
110
120
130
140
150
0 100 200 300 400 500 600
DC
30°
60°
90°
120°
180°
Maximum Allowa ble Case Temperature (°C)
Conduc tion Period
Averag e Fo rw ard Curre nt (A)
VSK.320.. Se rie s
R ( DC ) = 0 . 1 2 5 K/ W
thJC
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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Fig. 25 - Forward Power Loss Characteristics Fig. 26 - Forward Power Loss Characteristics
Fig. 27 - Forward Power Loss Characteristics
Fig. 28 - Forward Power Loss Characteristics
0
50
100
150
200
250
300
350
400
0 50 100 150 200 250 300 350
Average Forward Current (A)
RM S Li m it
Maximum Average Forward Power Loss (W)
Conduction Angle
180°
120°
90°
60°
30°
VSK.320.. Series
T = 150°C
J
0
50
100
150
200
250
300
350
400
450
500
0 100 200 300 400 500 600
DC
180°
120°
90°
60°
30°
RMS Lim it
Conduc tion Period
Average Forward Current (A)
Maximum Average Forward Power Loss (W)
VSK.320.. Serie s
Pe r Ju n c t i o n
T = 150°C
J
0 25 50 75 100 125 150
0.1K
/W
0.2K
/W
0.6K/W
0.06K
/W
0.3K
/W
0.4K
/W
Maximum Allowable Ambient Temperature (°C)
R=0.02K
/W-DeltaR
0.16K/W
0.04K
/W
thS
A
0
100
200
300
400
500
600
700
0 100 200 300 400 500
DC
180°
(Sine)
Total RMS Output Current (A)
VSK.320.. Serie s
Pe r Ju n c t io n
T = 150°C
Maximum Total Forward Power Loss (W)
J
0255075100125150
0.6K/W
0.04K
/W
0.06K
/W
0.12K/W
0.25K
/W
0.5K
/W
Maximum Allowable Ambient Temperature (°C)
R=0.02K
/W-DeltaR
0.16K
/W
thS
A
0.08K
/W
0.03K
/W
0
200
400
600
800
1000
1200
1400
0 100 200 300 400 500 600
180°
(Sine)
180°
(Rec t)
M a xi m u m To t a l Po w e r Lo ss ( W)
Total Output Current (A)
2 x VSK.320.. Se ries
Si n g l e Ph a se Br i d g e
Connec ted
T = 150°C
J
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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Fig. 29 - Forward Power Loss Characteristics
Fig. 30 - Maximum Non-Repetitive Surge Current
Fig. 31 - Maximum Non-Repetitive Surge Current
Fig. 32 - Forward Voltage Drop Characteristics
Fig. 33 - Thermal Impedance ZthJC Characteristics
0 25 50 75 100 125 150
0.04K
/W
0.05K
/W
0.06K/W
0.12K
/W
0.3K
/W
0.6K
/W
Maximum Allowable Ambient Temperature (°C)
0.03 K
/W
R=0.02K
/W-DeltaR
0.2K
/W
0.08K
/W
thS
A
0
400
800
1200
1600
2000
2400
2800
0 200 400 600 800 1000
120°
(Rect)
Total Output Current (A)
M a xim u m To t a l Po w e r Lo ss ( W )
3 x VSK.320.. Series
Three Phase Bridge
Connected
T = 15 0 ° C
J
2000
3000
4000
5000
6000
7000
8000
9000
10000
110100
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
VSK.320.. Series
Pe r Ju n c t io n
Initial T = 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Ra ted V App lied Following Surge.
RRM
J
2000
3000
4000
5000
6000
7000
8000
9000
10000
0.01 0.1 1
Peak Half Sine Wave Forward Current (A)
Pulse Train Duration (s)
Maximum Non Repetitive Surge Current
Initia l T = 150°C
No Voltage Reapplied
Ra t e d V Re a p p l ie d
Versus Pulse Train Duration.
RRM
J
VSK.320.. Series
Pe r Ju n c t io n
100
1000
10000
0.5 1 1.5 2 2.5 3 3.5 4
T = 2 5 ° C
J
Instantaneous Forward Current (A)
In st a n t a n e o u s Fo rw a rd V o lt a g e (V )
VSK.320.. Series
Pe r Ju nc t i o n
T = 1 5 0 ° C
J
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10 100
Square Wave Pulse Duration (s)
thJC
Transient T
hermal Impeda nc e Z (K/W)
VSK.320.. Series
Pe r Ju n c t io n
St e a d y St a t e V a l u e :
R = 0 . 45 K/ W
(DC Operation)
thJC
VS-VSK.250PbF, VS-VSK.270PbF, VS-VSK.320PbF Series
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ORDERING INFORMATION TABLE
CIRCUIT CONFIGURATION
CIRCUIT DESCRIPTION CIRCUIT CONFIGURATION CODE CIRCUIT DRAWING
Two diodes doubler circuit KD
Two diodes common cathode KC
Single diode KE
LINKS TO RELATED DOCUMENTS
Dimensions www.vishay.com/doc?95086
Device code KDVS-VS 320 - 24 PbF
1 432 5
- Circuit configuration (see Circuit Configuration table)
2
- Current rating: IF(AV) rounded
3
- Voltage code x 100 = VRRM (see Voltage Ratings table)
4
- Lead (Pb)-free
5
- Vishay Semiconductors product
1
VSKD...
+-
~
~-
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Document Number: 95086 For technical questions, contact: indmodules@vishay.com www.vishay.com
Revision: 03-Aug-07 1
MAGN-A-PAK
Outline Dimensions
Vishay Semiconductors
DIMENSIONS in millimeters (inches)
Notes
• Dimensions are nominal
• Full engineering drawings are available on request
• UL identification number for gate and cathode wire: UL 1385
• UL identification number for package: UL 94 V-0
Ø 5.5
6
(0.24)
38 (1.5)
50 (1.97)
6 (0.24)
115 (4.53)
80 (3.15)
9 (0.35)
20 (0.79)
3 screws M8 x 1.25 35 (1.38) 28 (1.12)
32
(1.26)
HEX 13
10 (0.39)
92 (3.62)
51 (2.01)
52 (2.04)
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 08-Feb-17 1Document Number: 91000
Disclaimer
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
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Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
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including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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