| lnlernotionol 70/30oU(R) SeriesI‘2R Recllflel Bulletin I2039 11/94 Thermal and Mechanical Specifications 70/300U(R) Unis Commons T Max. junction operating temperature range -65 to 200JTS|g Max storage temperature range -65 to 200 RMJC Max. thermal resistanoe.junction to case DC operation R Max. thermal resistanoe, case to neatsink Mounting surface, smooth‘ ?at and greased Max allowed mounting torque +0 —20% Not lubricated tnreads wt Approximate weight DO‘205AB(DO*9)" JEDEC(SeeOu'liieTab'e> “ 302U~A uses IR case style B426 Lubricated threads QRWC Conduction (The following table shows me increment of ihemtal resistenoe me when devioes operate at different conduction angles than DC) Conductionangle Sinusoidalconduction Rectangularconduction Units Conditions Ordering Information Table Device Code 0 0 300 = Standard 300U device 70 = Standard 70U device 302 = 300U Top Threaded version 72 = 70U with Pinch Bolt U - Essential Part Number F — Flat Base, available only on 72UF Series None = Normal Stud Base 3/4"—16UNF-2A R = Stud Reverse Polarity (Anode to Stud) None = stud Normal Polarity (Cathode to Stud) Voltage code: Code x 10 = VRRM (See Voltage Ratings table) A = Essential Part Number only for 300U Series None = 70U Series NOTE: For longer lead Contact Factory WWW. irf.com 3 |