50 Seaview Blvd. Port Washington, NY 11050-4618 PH.(516)625-1313 FAX(516)625-8845 E-mail: semi@sanrex.com
DWF(R)50A30/40
DIODE MODULE
DWF
R
50A is a non-isolated diode module designed for 3 phase rectification.
I
F
AV
50A, V
RRM
400V
Easy Construction with Joint-Cathode
F
Type and Joint-Anode
R
type.
Non-isolated.
Mounting Base as terminals.
High Surge Capability
Applications
Welding Power Supply
3 Phase Rectifier
80
0.2
M5X10
92
20
25
12.5
12
20
20
2- 6
6.5
19.5
4.0
31max
Unit
a
Maximum Ratings
Tj25 unless otherwise specified
Symbol
Item
Ratings
DWF(R)50A30
DWF(R)50A40
300
400
360
480
240
320
Unit
V
RRM
V
RSM
V
R
DC
Repetitive Peak Reverse Voltage
Non-Repetitive Peak Reverse Voltage
D.C. Reverse Voltage
V
V
V
Symbol
Item
Average Forward Current
Conditions
Ratings
Unit
A
I
F
AV
Single phase, half wave, 180
conduction, Tc122
50
I
F
RMS
I
FSM
R.M.S. Forward Current
Surge Forward Current
Single phase, half wave, 180
conduction, Tc122
1
2
cycle, 60Hz, peak value, non-repetitive
78
1000
A
A
I
2
t
I
2
t
Value for one cycle of surge current
4150
A
2
S
Tj
Operating Junction Temperature
-30 to 150
Tstg
Storage Temperature
-30 to 125
Mounting
Torque
Mounting
M5
Terminal
M5
Mass
Recommended Value 1.5-2.5
15-25
Recommended Value 1.5-2.5
15-25
2.7
28
2.7
28
N
m
fB
g
170
Electrical Characteristics
Symbol
I
RRM
Item
Repetitive Peak Reverse Current, max.
Conditions
at V
DRM
, single phase, half wave, Tj
150
Ratings
10
1.15
0.50
Unit
mA
V
FM
Forward Voltage Drop, max.
Forward current 150A, Tj
25, Inst. measurement
V
Rth
j-c Thermal Impedance, max.
Junction to case
/W
DWF
DWR
SanRex
50 Seaview Blvd. Port Washington, NY 11050-4618 PH.(516)625-1313 FAX(516)625-8845 E-mail: semi@sanrex.com
DWF(R)50A30/40
Maximum Forward Characteristics
Forward Voltage Drop V
F
V
Forward Current I
F
A
Average Forward Current vs.
Power Dissipation
Average Forward CurrentA
Power Dissipation Pav
W
Six Phase
Three Phase
Single Phase
Per one element
Average Forward CurrentA
Average Forward Current vs.
Allowable case Temperature
Allowable Case Temperature Tc
Per one element
Six Phase
Three Phase
Single Phase
Cycle Surge Forward Current Rating
Non-Repetitive
TimeCycles
Surge Forward Current I
F
A
60Hz
Per one element
Tj25 start
Transient Thermal Impedancemax
Time
t
sec
Transient Thermal Impedance
j-c
/
W
50ms20sec
0.5ms200ms
-1
-
-
-
Per one element
Junction to Case
SanRex
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