Bulletin I2095 rev. A 08/94
SD500N/R SERIES
STANDARD RECOVERY DIODES
Stud Version
Features
Wide current range
High voltage ratings up to 4500V
High surge current capabilities
Stud cathode and stud anode version
Standard JEDEC types
475A
TypicalApplications
Converters
Power supplies
High power drives
Auxiliary system supplies for traction applications
Major Ratings and Characteristics
Parameters
I
F(AV)
@ T
C
I
F(RMS)
I
FSM
@ 50Hz
@ 60Hz
I
2
t
@ 50Hz
@ 60Hz
V
RRM
range
T
J
SD500N/R
475
55
745
7500
7850
281
257
3000 to 4500
- 40 to 150
Units
A
°C
A
A
A
KA
2
s
KA
2
s
V
°C
case style
B-8
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1
SD500N/R Series
Bulletin I2095 rev. A 08/94
ELECTRICAL SPECIFICATIONS
Voltage Ratings
Voltage
Type number
Code
30
SD500N/R
36
40
45
V
RRM
, maximum repetitive
peak reverse voltage
V
3000
3600
4000
4500
V
RSM
, maximum non-
repetitive peak rev. voltage
V
3100
3700
4100
4600
I
RRM
max.
@ T
J
= T
J
max.
mA
50
Forward Conduction
Parameter
I
F(AV)
I
F(AV)
Max. average forward current
@ Case temperature
Max. average forward current
@ Case temperature
I
F(RMS)
Max. RMS forward current
I
FSM
Max. peak, one-cycle forward,
non-repetitive surge current
SD500N/R
475
55
300
100
745
7500
7850
6310
6600
Units Conditions
A
°C
A
°C
A
DC @ 40°C case temperature
t = 10ms
t = 8.3ms
A
t = 10ms
t = 8.3ms
t = 10ms
t = 8.3ms
KA
2
s
t = 10ms
t = 8.3ms
KA
2
√s
No voltage
reapplied
50% V
RRM
reapplied
No voltage
reapplied
50% V
RRM
reapplied
Sinusoidal half wave,
Initial T
J
= T
J
max.
180° conduction, half sine wave
180° conduction, half sine wave
I
2
t
Maximum I
2
t for fusing
281
257
199
182
I
2
√
t
Maximum I
2
√t
for fusing
2810
0.88
t = 0.1 to 10ms, no voltage reapplied
(16.7% x
π
x I
F(AV)
< I <
π
x I
F(AV)
), T
J
= T
J
max.
V
F(TO)1
Low level value of threshold
voltage
V
F(TO)2
High level value of threshold
voltage
r
f
1
V
0.97
(I >
π
x I
F(AV)
),T
J
= T
J
max.
(16.7% x
π
x I
F(AV)
< I <
π
x I
F(AV)
), T
J
= T
J
max.
mΩ
0.72
1.66
V
(I >
π
x I
F(AV)
),T
J
= T
J
max.
I = 1000A, T
J
= T
J
max, t = 10ms sinusoidal wave
pk
p
Low level value of forward
slope resistance
0.78
r
f
2
High level value of forward
slope resistance
V
FM
Max. forward voltage drop
2
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SD500N/R Series
Bulletin I2095 rev. A 08/94
Thermal and Mechanical Specifications
Parameter
T
J
T
stg
SD500N/R
-40 to 150
-55 to 200
0.1
0.04
50
454
B-8
Units
°C
Conditions
Max. junction operating temperature range
Max. storage temperature range
Max. thermal resistance, junction to case
Max. thermal resistance, case
to heatsink
Max. allowed mounting torque ±10%
Approximate weight
Case style
R
thJC
R
thCS
T
wt
DC operation
K/W
Nm
g
See Outline Table
Mounting surface, smooth, flat and
greased
Not lubricated threads
∆R
thJC
Conduction
(The following table shows the increment of thermal resistence R
thJC
when devices operate at different conduction angles than DC)
Conduction angle
180°
120°
90°
60°
30°
Sinusoidal conduction Rectangular conduction Units
0.012
0.014
0.017
0.025
0.042
0.008
0.014
0.019
0.026
0.042
K/W
Conditions
T
J
= T
J
max.
Ordering Information Table
Device Code
SD
1
1
2
3
4
-
-
-
-
Diode
Essential part number
0 = Standard recovery
50
2
0
3
N
4
45
5
P
6
S
7
C
8
N = Stud Normal Polarity (Cathode to Stud)
R = Stud Reverse Polarity (Anode to Stud)
5
6
-
-
Voltage code: Code x 100 = V
RRM
(See Voltage Ratings table)
P = Stud base B-8 3/4" 16UNF-2A
M = Stud base B-8 M24 X 1.5
7
-
S = Isolated lead with silicone sleeve
(Red = Reverse Polarity; Blue = Normal Polarity)
T = Threaded Top Terminal 3/8" 24UNF-2A
None = Non isolated lead
8
-
C = Ceramic Housing
NOTE: Available for rotating applications (Contact factory)
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3
SD500N/R Series
Bulletin I2095 rev. A 08/94
Outlines Table
CERAMIC HOUSING
26 (1.023) MAX.
10.5 (0.41) DIA.
5(0.20) ± 0.3(0.01)
12 (0.47) MIN.
C.S. 70mm
2
Case Style B-8
All dimensions in millimeters (inches)
245 (9.645)
25 5 (10.04)
115 (4.52)
DIA. MAX.
M IN.
21 (0.83) MAX.
47 (1.85)
SW 45
27.5 (1.08)
MAX.
3/4"-16UNF-2A *
* FOR METRIC DEVICE: M24 x 1.5 - LENGHT SCREW 21 (0.83) MAX.
MAX.
80 (3.15) MA X.
38 (1.5)
CERAMIC HOUSING
17 (0.67) DIA.
3/8"-24UNF-2A
25 (0.98)
77.5 (3.05)
80.5 (3.17)
38 (1.5)
DIA. MAX.
Case Style B-8 with top thread terminal 3/8"
All dimensions in millimeters (inches)
47 (1.85)
21 (0.83)
27.5 (1.08)
MAX.
SW 45
3/4"-16UNF-2A *
* FOR METRIC DEVICE: M24 x 1.5 - LENGHT SCREW 21 (0.83) MAX.
4
MAX.
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MAX.
SD500N/R Series
Bulletin I2095 rev. A 08/94
Maximum Allowable Case Temperature (°C)
Maximum Allowable Case Temperature (°C)
150
140
130
120
110
100
90
80
70
60
50
0
100
200
300
400
500
Average Forward Current (A)
Fig. 1 - Current Ratings Characteristics
Conduction Angle
SD500N/R Series
R
thJ C
(DC) = 0.1 K/W
150
140
130
120
110
100
90
80
70
60
50
40
30
0
100 200 300 400 500 600 700 800
Average Forward Current (A)
Fig. 2 - Current Ratings Characteristics
Conduction Period
SD500N/R Series
R
thJC
(DC) = 0.1 K/W
30°
60°
90°
120°
180°
30°
60°
90°
120°
180°
DC
Maximum Average Forward Power Loss (W)
900
800
700
600
180°
120°
90°
60°
30°
0 .0
4
R
th
SA
=
K/
W
0.0
1
K/
W
RMS Limit
-D
el
ta
500
400
300
0.1
K/
W
R
0 .2
K/ W
Conduction Angle
200
100
0
0
100
200
300
400
SD500N/R Series
T
J
= 150°C
0.4 K
/W
0.6 K/
W
1.8 K/W
500
25
50
75
100
125
150
Average Forward Current (A)
Maximum Allowable Ambient Temperature (°C)
Fig. 3 - Forward Power Loss Characteristics
Maximum Average Forward Power Loss (W)
1100
1000
900
800
700
DC
180°
120°
90°
60°
30°
R
th
SA
=
0.
01
0. 0
4
K/
W
K/
W
-D
600 RMS Limit
500
0 .1
K /W
e lt
a
R
400
300
200
100
0
0
Conduction Period
0. 2 K
/W
0.4 K/
W
SD500N/R Series
T = 150°C
J
0 .6 K/
W
1.8 K /W
100 200 300 400 500 600 700 800
25
Average Forward Current (A)
50
75
100
125
150
Maximum Allowable Ambient Temperature (°C)
Fig. 4 - Forward Power Loss Characteristics
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Making friends through disassembly
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