SD253N Datasheet, PDF (3/7 Pages) International Rectifier – FAST RECOVERY DIODES Stud Version

SD253N/R Series
Bulletin I2065 rev. A 09/94
Thermal and Mechanical Specification
Parameter
SD253N/R Units Conditions
T Max. operating temperature range
J
T_stg Max. storage temperature range
R Max. thermal resistance, junction to case
thJC
R Max. thermal resistance, case to heatsink
thCS
T Mounting torque ± 10%
wt Approximate weight
-40 to 125
-40 to 150
0.115
0.08
31
24.5
250
°C
K/W
Nm
g
DC operation
Mounting surface, smooth, flat and greased
Not lubricated threads
Lubricated threads
Case style
DO-205AB (DO-9) See Outline Table
∆R_thJC Conduction
(The following table shows the increment of thermal resistence R when devices operate at different conduction angles than DC)
thJC
Conduction angle Sinusoidal conduction Rectangular conduction Units Conditions
180°
120°
90°
60°
30°
0.010
0.013
0.017
0.025
0.044
0.008
0.014
0.019
0.027
0.044
K/W
T_J = T_J max.
Ordering Information Table
Device Code
SD 25 3 R 16 S20 P B V
1 - Diode
1234 56 78 9
2 - Essential part number
3 - 3 = Fast recovery
4 - N = Stud Normal Polarity (Cathode to Stud)
R = Stud Reverse Polarity (Anode to Stud)
5 - Voltage code: Code x 100 = V_RRM (see Voltage Ratings table)
6 - t_rr code (see Recovery Characteristics table)
7 - 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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