Bulletin I2065 rev. A 09/94
SD253N/R SERIES
FAST RECOVERY DIODES
Features
High power FAST recovery diode series
1.5 to 2.0 µs recovery time
High voltage ratings up to 1600V
High current capability
Optimized turn on and turn off characteristics
Low forward recovery
Fast and soft reverse recovery
Compression bonded encapsulation
Stud version JEDEC DO-205AB (DO-9)
Maximum junction temperature 125°C
Stud Version
250A
Typical Applications
Snubber diode for GTO
High voltage free-wheeling diode
Fast recovery rectifier 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
rr
range
@ T
J
T
J
SD253N/R
250
85
392
5350
5600
143
130
400 to 1600
1.5 to 2.0
25
- 40 to 125
Units
A
°C
A
A
A
KA
2
s
KA
2
s
V
µs
°C
°C
case style
DO-205AB (DO-9)
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SD253N/R Series
Bulletin I2065 rev. A 09/94
ELECTRICAL SPECIFICATIONS
Voltage Ratings
Type number
Voltage
V
RRM
max. repetitive
Code
peak and off-state voltage
V
04
SD253N/R..S15
08
10
12
SD253N/R..S20
14
16
400
800
1000
1200
1400
1600
V
RSM
, maximum non-
repetitive peak voltage
V
500
900
1100
1300
1500
1700
I
RRM
max.
T
J
= 125°C
mA
35
Forward Conduction
Parameter
I
F(AV)
Max. average forward current
@ Case temperature
I
F(RMS)
Max. RMS current
I
FSM
Max. peak, one-cycle
non-repetitive forward current
SD253N/R
250
85
392
5350
5600
4500
4710
Units
A
°C
A
Conditions
180° conduction, half sine wave.
DC @ 74°C case temperature
t = 10ms
t = 8.3ms
No voltage
reapplied
100% V
RRM
reapplied
No voltage
reapplied
100% V
RRM
reapplied
Sinusoidal half wave,
Initial T
J
= T
J
max.
A
t = 10ms
t = 8.3ms
t = 10ms
I
2
t
Maximum I
2
t for fusing
143
130
101
92
KA
2
s
t = 8.3ms
t = 10ms
t = 8.3ms
I
2
√t
Maximum I
2
√t
for fusing
1430
0.87
1.17
0.62
0.29
1.38
KA
2
√s
V
mΩ
V
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.
(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.
(I >
π
x I
F(AV)
), T
J
= T
J
max.
I
pk
= 785A, T
J
= 25°C, t
p
= 400 µs square pulse
V
F(TO)1
Low level of threshold voltage
V
F(TO)
2
High level of threshold voltage
r
f1
r
f2
V
FM
Low level of forward slope resistance
High level of forward slope resistance
Max. forward voltage
Recovery Characteristics
Code
T
J
= 25
o
C
typical t
(µs)
rr
Test conditions
I
pk
Max. values @ T
J
= 125 °C
V
r
di/dt
(A/µs)
t
rr
Q
rr
I
rr
@ 25% I
RRM
Square Pulse
(A)
(V)
@ 25% I
RRM
(µs)
2.9
(µC)
90
107
(A)
44
46
S15
S20
1.5
750
2.0
25
- 30
3.2
2
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SD253N/R Series
Bulletin I2065 rev. A 09/94
Thermal and Mechanical Specification
Parameter
T
J
T
stg
SD253N/R
-40 to 125
-40 to 150
0.115
0.08
31
24.5
Units
°C
Conditions
Max. operating temperature range
Max. storage temperature range
R
thJC
Max. thermal resistance, junction to case
R
thCS
Max. thermal resistance, case to heatsink
T
Mounting torque ± 10%
K/W
DC operation
Mounting surface, smooth, flat and greased
Not lubricated threads
Lubricated threads
Nm
g
wt
Approximate weight
Case style
250
DO-205AB (DO-9)
See Outline Table
∆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
0.010
0.013
0.017
0.025
0.044
0.008
0.014
0.019
0.027
0.044
K/W
Conditions
T
J
= T
J
max.
Ordering Information Table
Device Code
SD
1
1
2
3
4
-
-
-
-
Diode
Essential part number
3 = Fast recovery
25
2
3
3
R
4
16 S20
5
6
P
7
B
8
V
9
N = Stud Normal Polarity (Cathode to Stud)
R = Stud Reverse Polarity (Anode to Stud)
5
6
7
-
-
-
Voltage code: Code x 100 = V
RRM
(see Voltage Ratings table)
t
rr
code (see Recovery Characteristics table)
P = Stud base DO-205AB (DO-9) 3/4" 16UNF-2A
M = Stud base DO-205AB (DO-9) M16 X 1.5
8
-7 B = Flag top terminals (for Cathode/ Anode Leads)
S = Isolated lead with silicone sleeve
(Red = Reverse Polarity; Blue = Normal Polarity)
None = Not isolated lead
9
-
V = Glass-metal seal
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SD253N/R Series
Bulletin I2065 rev. A 09/94
Outline Table
GLASS-METAL SEAL
19 (0.75)
MAX.
9.5 ( 0.37) MIN.
4 (0.16) MAX.
200 (7.87) ± 10 (0.39)
DIA. 8.5 (0.33) NOM.
C.S. 35mm
(0.054 s.i.)
75 (2.95) MIN.
DIA. 28.5 (1.08) MAX.
28.5 (1.12)
MAX.
16 (0.63)
MAX.
SW 32
39 (1.53)
MAX.
2
Conform to JEDEC DO-205AB (DO-9)
All dimensions in millimeters (inches)
21 (0.82)
MAX.
3/4-16UNF-2A*
* FOR METRIC DEVICE: M16 X 1.5
GLASS-METAL SEAL
21 (0.83)
14 (0.55)
DIA. 6.5 (0.26)
13 (0.51)
70 (2.7 5) M AX.
28. 5 (1.12 )
MAX.
DO-205AB (DO-9) Flag
All dimensions in millimeters (inches)
3/4"-16UNF-2A*
*FOR METRIC DEVICE: M16 X 1.5
21 (0. 83)
MAX.
16 (0 .63)
MAX.
4
32 (1.26)
3 (0.12)
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62 (2.4 4)
DIA. 28.5 (1.12) MAX.
SD253N/R Series
Bulletin I2065 rev. A 09/94
Maximum Allowable Case Temperature (°C)
Maximum Allowable Case Temperature (°C)
130
SD253N/R Series
R
thJC
(DC) = 0.115 K/W
130
120
110
100
90
30°
SD253N/R Series
R
thJC
(DC) = 0.115 K/W
120
110
Conduction Angle
Conduction Period
100
90
30°
60°
180°
90°
120°
60°
80
70
0
100
200
300
400
Average Forward Current (A)
Fig. 2 - Current Ratings Characteristics
90°
120°
180°
DC
80
0
50
100
150
200
250
300
Average Forward Current (A)
Fig. 1 - Current Ratings Characteristics
Maximum Average Forward Power Loss (W)
300
250
200
150
100
50
0
0
50
180°
120°
90°
60°
30°
RMS Limit
Maximum Average Forward Power Loss (W)
350
500
450
400
350
300
250
200
150
100
50
0
0
100
200
300
400
Average Forward Current (A)
Fig. 4 - Forward Power Loss Characteristics
DC
180°
120°
90°
60°
30°
RMS Limit
Conduction Period
Conduction Angle
SD253N/R Series
T
J
= 125°C
100
150
200
250
SD253N/R Series
T
J
= 125°C
Average Forward Current (A)
Fig. 3 - Forward Power Loss Characteristics
Peak Half Sine Wave Forward Current (A)
Peak Half Sine Wave Forward Current (A)
5000
4500
4000
3500
3000
2500
2000
1500
1000
1
At Any Rated Load Condition And With
Rated V
RRM
Applied Following Surge.
Initial T
J
= 125°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
6000
5000
Maximum Non Repetitive Surge Current
Versus Pulse Train Duration.
Initial T
J
= 125°C
No Volt age Reapplied
Rated V
RRM
Reapplied
4000
3000
2000
SD253N/R Series
1000
0.01
0.1
Pulse Train Duration (s)
Fig. 6 - Maximum Non-repetitive Surge Current
SD253N/R Series
10
100
1
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Fig. 5 - Maximum Non-repetitive Surge Current
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