50 Seaview Blvd. Port Washington, NY 11050-4618 PH.(516)625-1313 FAX(516)625-8845 E-mail: semi@sanrex.com
DWF(R)70A30/40
DIODE MODULE
DWF
R
70A is a non-isolated diode module designed for 3 phase rectification.
I
F
AV
70A, 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)70A30
DWF(R)70A40
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, Tc119
70
I
F
RMS
I
FSM
R.M.S. Forward Current
Surge Forward Current
Single phase, half wave, 180
conduction, Tc119
1
2
cycle, 60Hz, peak value, non-repetitive
110
1400
A
A
I
2
t
I
2
t
Value for one cycle of surge current
8100
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
48
2.7
48
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
12
1.15
0.40
Unit
mA
V
FM
Forward Voltage Drop, max.
Forward current 220A, 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)70A30/40
Maximum Forward Characteristics
Forward Voltage Drop V
F
V
Forward Current I
F
A
Average Forward Current vs.
Power Dissipation
Average Forward CurrentA
8
7
7
8
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
Three Phase
Six Phase
Per one element
Single Phase
Cycle Surge Forward Current Rating
Non-Repetitive
TimeCycles
5
Surge Forward Current I
F
A
60Hz
Per one element
Tj25 start
Transient Thermal Impedancemax
Time
t
sec
-1
-
-
-
Transient Thermal Impedance
j-c
/
W
Junction to Case
50ms20sec
0.5ms200ms
Per one element
SanRex
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