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DISCRETE POWER DIODES and THYRISTORS
DATA BOOK
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SD253N/R SERIES
FAST RECOVERY DIODES Features
High power FAST recovery diode series 1.5 to 2.0 s 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 125C
Stud Version
250A
Typical Applications
Snubber diode for GTO High voltage free-wheeling diode Fast recovery rectifier applications
Major Ratings and Characteristics
Parameters
IF(AV) @ TC IF(RMS) IFSM @ 50Hz @ 60Hz I 2t @ 50Hz @ 60Hz V RRM range trr range @ TJ TJ
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 KA2s KA2s V s C C
case style DO-205AB (DO-9)
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ELECTRICAL SPECIFICATIONS Voltage Ratings
Voltage Type number Code
04 SD253N/R..S15 08 10 12 SD253N/R..S20 14 16
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V RRM max. repetitive peak and off-state voltage V
400 800 1000 1200 1400 1600
VRSM , maximum nonrepetitive peak voltage V
500 900 1100 1300 1500 1700
I RRM max. TJ = 125C 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
12 SD253N/R
250 85 392 5350 5600 4500 4710 A
Units
A C A
Conditions
180 conduction, half sine wave.
DC @ 74C case temperature t = 10ms t = 8.3ms t = 10ms t = 8.3ms t = 10ms No voltage reapplied 100% VRRM reapplied No voltage reapplied 100% VRRM reapplied Sinusoidal half wave, Initial TJ = TJ max.
I 2t
Maximum
I2 t
for fusing
143 130 101 92 KA2s
t = 8.3ms t = 10ms t = 8.3ms
I 2 t
Maximum I2t for fusing
1430 0.87 1.17 0.62 0.29 1.38
KA2s V
t = 0.1 to 10ms, no voltage reapplied (16.7% x x IF(AV) < I < x IF(AV)), TJ = TJ max. (I > x IF(AV)), TJ = TJ max. (16.7% x x IF(AV) < I < x IF(AV)), TJ = TJ max. (I > x IF(AV)), TJ = TJ max.
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
m V
2222222222222
Ipk= 785A, TJ = 25C, tp = 400 s square pulse
Recovery Characteristics
Code
TJ = 25 oC typical t (s)
rr
Test conditions
I
pk
Max. values @ TJ = 125 C
V
r
di/dt (A/s)
t
rr
Q
rr
I
rr
@ 25% IRRM
Square Pulse (A) (V)
@ 25% IRRM (s) 2.9 (C) 90 107 (A) 44 46
S15 S20
1.5 750 2.0 25 - 30
3.2
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Fig. 1 - Current Ratings Characteristics
Fig. 2 - Current Ratings Characteristics
Fig. 3 - Forward Power Loss Characteristics
Fig. 4 - Forward Power Loss Characteristics
Fig. 5 - Maximum Non-repetitive Surge Current
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Fig. 6 - Maximum Non-repetitive Surge Current
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Fig. 7 - Forward Voltage Drop Characteristics
Fig. 8 - Thermal Impedance ZthJC Characteristic
Fig. 9 - Recovery Time Characteristics
Fig. 10 - Recovery Charge Characteristics
Fig. 11 - Recovery Current Characteristics
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Fig. 12 - Recovery Time Characteristics Fig. 13 - Recovery Charge Characteristics Fig. 14 - Recovery Current Characteristics
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Fig. 15 - Maximum Total Energy Loss Per Pulse Characteristics
Fig. 16 - Maximum Total Energy Loss Per Pulse Characteristics
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Thermal and Mechanical Specification
Parameter
TJ Tstg Max. operating temperature range Max. storage temperature range
SD253N/R
-40 to 125 -40 to 150 0.115 0.08 31 24.5
Units
C
Conditions
RthJC Max. thermal resistance, junction to case RthCS Max. thermal resistance, case to heatsink T Mounting torque 10%
K/W
DC operation Mounting surface, smooth, flat and greased
Nm g
Not lubricated threads Lubricated threads
wt
Approximate weight Case style
250
DO-205AB (DO-9)
See Outline Table
RthJC Conduction
(The following table shows the increment of thermal resistence RthJC 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
TJ = TJ max.
23
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) trr 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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Outline Table
GLASS-METAL SEAL
19 (0.75) MAX. 9.5 ( 0.3 7) M IN .
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4 (0.16) MAX.
20 0 (7.87 ) 10 (0.3 9)
DIA. 8.5 (0.33) NOM.
C.S. 35mm (0.054 s.i.)
75 (2 .95) M IN .
DIA. 28.5 (1.08) MAX.
39 ( 1.5 3) M A X. 2
2 8.5 ( 1.1 2) M A X.
12
16 ( 0.6 3) M AX . SW 32
Conform to JEDEC DO-205AB (DO-9)
All dimensions in millimeters (inches)
2 1 ( 0.82 ) M AX .
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) 1 3 ( 0.51 )
7 0 (2 .7 5) M A X .
2 8 .5 (1 .1 2 ) M AX .
16 (0 .6 3 ) M AX .
2222222222222
DO-205AB (DO-9) Flag
All dimensions in millimeters (inches)
*FOR METRIC DEVICE: M16 X 1.5 3/4"-16UNF-2A*
21 ( 0.8 3 ) M AX.
To Order
3 2 (1 .2 6 )
3 (0 .1 2 )
6 2 (2 .4 4)
DIA. 28.5 (1.12) MAX.

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