USD520-USD550 SCHOTTKY RECTIFIERS High-reliability discrete products and engineering services since 1977 FEATURES Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number. Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix. MAXIMUM RATINGS Parameter Symbol Value Peak repetitive forward current @ TC = 115°C (Rated VR, square wave, 20 kHz, 50% duty cycle) IFRM 150A Average forward current @ TC = 115°C IF(AV) 75A Non-repetitive peak surge current (8.3ms) IFSM 1000A Peak reverse transient current IRM 2A Thermal resistance, junction to case RӨJC 0.8°C/W Storage temperature range Tstg -55° to 200°C Operating junction temperature TJ(pk) 175°C ELECTRICAL CHARACTERISTICS @ 25°C unless otherwise noted Working peak reverse voltage Part number VRWM Non-repetitive peak reverse voltage Maximum reverse current (pulsed)* Maximum forward voltage @ IRM VRSM VF IR @ VRWM Volts Volts Volts mA mA @10A, 25°C @60A, 25°C @60A, 125°C @TC = 25°C @ TC = 125°C Maximum capacitance @ VR = 5.0V Volts Volts pF USD520 20 24 0.50 0.68 0.60 20 50 4000 USD535 35 42 0.50 0.68 0.60 20 50 4000 USD545 45 54 0.50 0.68 0.60 20 50 4000 USD550 50 60 0.50 0.68 0.60 20 75 4000 *Duty cycle = 1%. Rev. 20121128 USD520-USD550 SCHOTTKY RECTIFIERS High-reliability discrete products and engineering services since 1977 MECHANICAL CHARACTERISTICS Case DO-5(R) Marking Alpha-numeric Normal polarity Cathode is stud Reverse polarity Anode is stud (add “R” suffix) DO-5(R) A B C D E F G H J K M N P Inches Millimeters Min Max Min Max ¼-28 UNF2A threads 0.669 0.688 16.990 17.480 0.794 20.160 1.000 25.400 0.422 0.453 10.720 11.510 0115 0.200 2.920 5.080 0.450 11.430 0.220 0.249 5.580 6.320 0.250 0.375 6.350 9.530 0.156 3.960 0.667 16.940 0.030 0.080 0.760 2.030 0.140 0.175 3.560 4.450 Rev. 20121128 High-reliability discrete products and engineering services since 1977 USD520-USD550 SCHOTTKY RECTIFIERS Rev. 20121128