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DRD420D
FEATURES
s
Double Side Cooling
s
High Surge Capability
APPLICATIONS
s
Rectification
s
Freewheel Diode
s
DC Motor Control
s
Power Supplies
s
Welding
s
Battery Chargers
VOLTAGE RATINGS
ORDERING INFORMATION
When ordering, select the required part number shown in the
Voltage Ratings selection table, e.g.:
DRD420D18
Note: Please use the complete part number when ordering
and quote this number in any future correspondance relating
to your order.
DRD420D
Rectifier Diode
Target Information
DS5517-1.0 February 2002
1800
1600
1400
1200
DRD420D18
DRD420D16
DRD420D14
DRD420D12
Conditions
V
RSM
= V
RRM
+ 100V
Lower voltage grades available.
Type Number
Repetitive Peak
Reverse Voltage
V
RRM
V
KEY PARAMETERS
V
RRM
1800V
I
F(AV)
4200A
I
FSM
70000A
Outline type code: DO200AD
See Package Details for further information.
Fig. 1 Package outline
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DRD420D
Symbol
Parameter
Conditions
Double Side Cooled
I
F(AV)
Mean forward current
I
F(RMS)
RMS value
I
F
Continuous (direct) forward current
Single Side Cooled (Anode side)
I
F(AV)
Mean forward current
I
F(RMS)
RMS value
I
F
Continuous (direct) forward current
Units
Max.
Half wave resistive load, T
case
= 100
o
C
4200
A
T
case
= 100
o
C
6600
A
T
case
= 100
o
C
5980
A
Half wave resistive load, T
case
= 100
o
C
3000
A
T
case
= 100
o
C
4780
A
T
case
= 100
o
C
3800
A
CURRENT RATINGS
T
case
= 75
o
C unless otherwise stated
Symbol
Parameter
Conditions
Double Side Cooled
I
F(AV)
Mean forward current
I
F(RMS)
RMS value
I
F
Continuous (direct) forward current
Single Side Cooled (Anode side)
I
F(AV)
Mean forward current
I
F(RMS)
RMS value
I
F
Continuous (direct) forward current
Units
Max.
Half wave resistive load
5150
A
-
8090
A
-
7450
A
Half wave resistive load
3760
A
-
5910
A
-
4820
A
T
case
= 100
o
C unless otherwise stated
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DRD420D
SURGE RATINGS
Conditions
10ms half sine; T
case
= 175
o
C
V
R
= 50% V
RRM
- 1/4 sine
10ms half sine; T
case
= 175
o
C
V
R
= 0
Max.
Units
Symbol
Parameter
I
FSM
Surge (non-repetitive) forward current
I
2
t
I
2
t for fusing
I
FSM
Surge (non-repetitive) forward current
I
2
t
I
2
t for fusing
24.5 x 10
6
A
2
s
70
kA
15.68 x 10
6
A
2
s
56
kA
THERMAL AND MECHANICAL DATA
dc
Conditions
Min.
Max.
Units
o
C/W
-
0.025
Anode dc
Clamping force 45.0kN
with mounting compound
Thermal resistance - case to heatsink
R
th(c-h)
0.003
Double side
-
T
vj
Virtual junction temperature
T
stg
Storage temperature range
Single side
-
Thermal resistance - junction to case
R
th(j-c)
Single side cooled
Symbol
Parameter
-55
200
o
C
Forward (conducting)
-
o
C
-
0.006
o
C/W
o
C/W
Cathode dc
-
0.027
o
C/W
Double side cooled
-
0.013
o
C/W
Clamping force
40.0
48.0
kN
175
Reverse (blocking)
-
o
C
185
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DRD420D
CHARACTERISTICS
Peak reverse current
Parameter
C
-
Q
S
Total stored charge
Symbol
I
RRM
I
RR
Peak recovery current
155
-
A
2500
At V
RRM
, T
case
= 175
o
C
-
100
mA
Conditions
Typ.
Max.
Units
At T
vj
= 175C
-
V
TO
Threshold voltage
r
T
Slope resistance
0.0494
m
At T
vj
= 175C
-
0.75
V
t
rr
Reverse recovery time
50
-
s
I
F
= 1000A, dI
RR
/dt = 5A/
s
T
case
= 175C, V
R
= 100V
CURVES
Fig.2 Maximum (limit) forward characteristics
Fig.3 Dissipation curves
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
Instantaneous forward current, I
F
- (A)
0.7
0.8
0.9
1.0
1.1
1.2
1.3
Instantaneous forward voltage, V
F
- (A)
T
j
= 125C
0
1000
2000
3000
4000
5000
6000
7000
0
1000
2000
3000
4000
5000
6000
7000
Mean forward current, I
F(AV)
- (A)
Mean power dissipation - (W)
dc
1/2 wave
3 phase
6 phase
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DRD420D
Fig.5 Maximum (limit) transient thermal impedance -
junction to case
Fig.4 Series multi-cycle surge current
10
1
0.1
0.01
0.001
Time - (s)
0.1
0.01
0.001
0.0001
Thermal impedance - (
C/W)
Double side cooled
Anode side cooled
100
Conduction
d.c.
Halfwave
3 phase 120
6 phase 60
Effective thermal resistance
Junction to case C/W
Double side
0.0130
0.0141
0.0170
0.0200
Anode side
0.0250
0.0261
0.0290
0.0320
Fig.5 Sub-cycle surge curves
0
10
20
30
40
50
60
70
80
0
10
20
30
40
50
60
Number of cycles @ 50Hz
Peak half sine wave on-state current - (kA)
Surge current (V
R
= 0)
Surge current (V
R
= 50% V
RRM
)
0
20
40
60
80
100
120
140
160
Peak half sine forward current - (kA)
0
5
10
15
20
25
30
35
40
I
2
t value - (A
2
s x 10
6
)
1
10
Pulse length, half sine wave - (ms)
9
8
7
6
5
4
3
2
I
FSM
(V
R
= 0)
I
FSM
(V
R
= 50% V
RRM
)
I
2
t (V
R
= 0)
I
2
t (V
R
= 50% V
RRM
)
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