70/300U(R) Series
3www.irf.com
Bulletin I2039 11/94
TJMax. junction operating temperature range -65 to 200
Tstg Max. storage temperature range -65 to 200
RthJC Max. thermal resistance, junction to case 0.18 DC operation
RthCS Max. thermal resistance, case to heatsink 0.08 Mounting surface, smooth, flat and greased
T Max. allowed mounting torque +0 -20% 37 Not lubricated threads
28 Lubricated threads
wt Approximate weight 250 g
Case style DO-205AB (DO-9)** JEDEC (See Outline Table)
Parameter 70/300U(R) Units Conditions
Thermal and Mechanical Specifications
°C
K/W
Nm
** 302U-A uses IR case style B-26
180° 0.020 0.015 TJ = TJ max.
120° 0.024 0.025
90° 0.031 0.034
60° 0.045 0.047
30° 0.077 0.077
Conduction angle Sinusoidal conduction Rectangular conduction Units Conditions
K/W
Ordering Information Table
300 U R 100 A
1234 5 6
Device Code
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
∆RthJC Conduction
(The following table shows the increment of thermal resistence RthJC when devices operate at different conduction angles than DC)