70/300U(R) Series
Bulletin I2039 11/94
Thermal and Mechanical Specifications
Parameter
70/300U(R)
T
J
Tstg
RthJC
RthCS
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%
-65 to 200
-65 to 200
0.18
0.08
37
wt Approximate weight
28
250
Units Conditions
°C
DC operation
K/W
Mounting surface, smooth, flat and greased
Not lubricated threads
Nm
Lubricated threads
g
Case style
** 302U-A uses IR case style B-26
DO-205AB (DO-9)** JEDEC (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 Sinusoidal conduction Rectangular conduction Units Conditions
180°
120°
90°
60°
30°
0.020
0.024
0.031
0.045
0.077
0.015
0.025
0.034
0.047
0.077
K/W
TJ = TJ max.
Ordering Information Table
Device Code
300 U
R 100 A
1234 56
1 - 300 = Standard 300U device
70 = Standard 70U device
302 = 300U Top Threaded version
72 = 70U with Pinch Bolt
2 - U = Essential Part Number
3 - F = Flat Base, available only on 72UF Series
None = Normal Stud Base 3/4"-16UNF-2A
4 - R = Stud Reverse Polarity (Anode to Stud)
None = Stud Normal Polarity (Cathode to Stud)
5 - Voltage code: Code x 10 = VRRM (See Voltage Ratings table)
6 - A = Essential Part Number only for 300U Series
None = 70U Series
NOTE: For longer lead Contact Factory
www.irf.com
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