RD43FF
RD43FF
Rectifier Diode
Target Information
Replaces November 2000, version DS5414-1.1
DS5414-2.0 October 2001
FEATURES
s
s
s
KEY PARAMETERS
V
RRM
I
F(AV)
I
FSM
(max)
(max)
600V
4466A
51500A
Optimised For High Current Rectifiers
High Surge Capability
Very Low On-state Voltage
APPLICATIONS
s
s
s
Electroplating
Power Supplies
Welding
VOLTAGE RATINGS
Part and Ordering Repetitive Peak
Number
Reverse Voltage
V
RRM
V
RD43FF06
RD43FF05
RD43FF04
RD43FF03
RD43FF02
RD43FF01
600
500
400
300
200
100
Conditions
V
RSM
= V
RRM
Outline type code:
F
(See Package Details for further information)
Fig. 1 Package outline
ORDERING INFORMATION
When ordering, select the required part number shown in the
Voltage Ratings selection table.
For example:
RD43FF04
Note: Please use the complete part number when ordering and
quote this number in any future correspondance relating to your
order.
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RD43FF
CURRENT RATINGS
T
case
= 75
o
C unless otherwise stated
Symbol
Double Side Cooled
I
F(AV)
I
F(RMS)
I
F
Mean forward current
RMS value
Continuous (direct) forward current
Half wave resistive load
-
-
4466
7014
6189
A
A
A
Parameter
Conditions
Max.
Units
Single Side Cooled (Anode side)
I
F(AV)
I
F(RMS)
I
F
Mean forward current
RMS value
Continuous (direct) forward current
Half wave resistive load
-
-
3133
4922
4066
A
A
A
T
case
= 85
o
C unless otherwise stated
Symbol
Double Side Cooled
I
F(AV)
I
F(RMS)
I
F
Mean forward current
RMS value
Continuous (direct) forward current
Half wave resistive load
-
-
4220
6630
5815
A
A
A
Parameter
Test Conditions
Max.
Units
Single Side Cooled
I
F(AV)
I
F(RMS)
I
F
Mean forward current
RMS value
Continuous (direct) forward current
Half wave resistive load
-
-
2950
4635
3805
A
A
A
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RD43FF
SURGE RATINGS
Symbol
I
FSM
I
2
t
I
FSM
I
2
t
Parameter
Surge (non-repetitive) forward current
I
2
t for fusing
Surge (non-repetitive) forward current
I
2
t for fusing
Test Conditions
10ms half sine, T
case
= 175˚C
V
R
= 50% V
RRM
- 1/4 sine
10ms half sine, T
case
= 175˚C
V
R
= 0
Max.
41.2
8.49 x 10
6
51.5
13.26 x 10
6
Units
kA
A
2
s
kA
A
2
s
THERMAL AND MECHANICAL RATINGS
Symbol
R
th(j-c)
Parameter
Thermal resistance - junction to case
Test Conditions
Double side cooled
Single side cooled
DC
Anode DC
Cathode DC
R
th(c-h)
Thermal resistance - case to heatsink
Clamping force 19.5kN
Double side
Min.
-
-
-
-
-
-
-
–55
17.6
Max.
0.022
0.038
0.052
0.004
0.008
225
200
200
21.6
Units
˚CW
˚CW
˚CW
˚CW
˚CW
˚C
˚C
˚C
kN
(with mounting compound) Single side
T
vj
Virtual junction temperature
Forward (conducting)
Reverse (blocking)
T
stg
F
m
Storage temperature range
Clamping force
CHARACTERISTICS
Symbol
I
RM
I
rr
Q
S
V
TO
r
T
Parameter
Peak reverse current
Peak reverse recovery current
Total stored charge
Threshold voltage
Slope resistance
Test Conditions
At V
RRM
, T
case
= 200˚C
I
F
= 2000A, dI
RR
/dt = 3A/µs,
T
case
= 200˚C, V
R
= 100V
At T
vj
= 200˚C
At T
vj
= 200˚C
Min.
-
-
-
-
-
Max.
50
25
150
0.6
0.0514
Units
mA
A
µC
V
mΩ
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RD43FF
CURVES
6000
T
j
= 200˚C
5000
7000
dc
1/2 wave
3 phase
6 phase
6000
Instantaneous forward current, I
F
- (A)
Mean power dissipation - (W)
5000
4000
4000
3000
3000
2000
2000
1000
1000
0
0.5
0
0.55
0.6
0.65
0.7
0.75
0.8
0.85
0.9
0
1000
Instantaneous forward voltage, V
F
- (V)
2000
3000
4000
5000
Mean forward current, I
F(AV)
- (A)
6000
7000
Fig. 2 Maximum (limit) forward characteristics
Fig. 3 Power dissipation
1000
I
F
Q
S
1000
Reverse recovery current I
RR
- (A)
Max. Q
S
Stored charge Q
S
- (µC)
dI/dt
I
RM
100
100
Max. I
RR
Conditions:
T
j
= 200˚C
V
R
= 100V
I
F
= 2000A
10
0.1
1.0
10
10
100
Rate of decay of forward current, dI
F
/dt - (A/µs)
Fig. 4 Maximum stored charge and reverse recovery current vs dI/dt
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RD43FF
100
I t=Î xt
2
2
9
Thermal Impedance - Junction to case (˚C/W)
0.1
2
Peak half sine forward current - (kA)
80
8
I
2
t value - (A
2
s x 10
6
)
Anode side cooled
60
7
Double side cooled
0.01
40
6
20
I
2
t
0
1
ms
10
1
2 3 5
10 20
Cycles at 50Hz
Duration
5
4
50
0.001
0.001
Conduction Effective thermal resistance
Junction to case ˚C/W
Double side Anode side
0.022
0.038
d.c.
0.024
0.040
Halfwave
0.026
0.042
3 phase 120˚
0.027
0.043
6 phase 60˚
0.01
0.1
Time - (s)
1.0
10
Fig. 5 Surge (non-repetitive) forward current vs time
(with 50% V
RRM
@ T
case
= 175˚C)
Fig. 6 Maximum (limit) transient thermal impedance
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