Thermal and Mechanical Specifications
Parameter
T
J
T
stg
R
thJC
R
thCS
T
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 +0 -20%
70/300U(R)
-65 to 200
-65 to 200
0.18
0.08
37
28
Units
°C
Conditions
DC operation
K/W
Mounting surface, smooth, flat and greased
Not lubricated threads
Nm
g
JEDEC (See Outline Table)
Lubricated threads
wt
Approximate weight
Case style
250
DO-205AB (DO-9)**
** 302U-A uses IR case style B-26
∆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
0.020
0.024
0.031
0.045
0.077
0.015
0.025
0.034
0.047
0.077
K/W
Conditions
T
J
= T
J
max.
Ordering Information Table
Device Code
300
1
U
2
3
R
4
100
5
A
6
1
-
300
70
302
= Standard 300U device
= Standard 70U device
= 300U Top Threaded version
= 70U with Pinch Bolt
= Essential Part Number
2
3
4
5
6
-
-
-
-
-
72
U
F
= Flat Base, available only on 72UF Series
None = Normal Stud
R
= Stud Reverse Polarity (Anode to Stud)
None = Stud Normal Polarity (Cathode to Stud)
Voltage code: Code x 10 = V
RRM
(See Voltage Ratings table)
A
= Essential Part Number only for 300U Series
None = 70U Series
NOTE: For longer lead Contact Factory
IRF [ INTERNATIONAL RECTIFIER ]
