MOSPEC SK345 Surface Mount Schottky Barrier rectifiers SCHOTTKY BARRIER RECTIFIERS Using the Schottky Barrier principle with a Molybdenum barrier meta. These state-of-the-art geometry features epitaxial construction with oxide passivation and metal overlay contact. Ideally suited for low voltage, high frequency rectification, or as free wheeling and polarity protection diodes, in surface mount applications where compact size and weight are critical to the system. 3.0 AMPERES 45 VOLTS Features ＊Low Forward Voltage. ＊Low Switching noise. ＊High Current Capacity ＊Guarantee Reverse Avalanche. ＊Guard-Ring for Stress Protection. ＊Low Power Loss & High efficiency. ＊150℃ Operating Junction Temperature ＊Low Stored Charge Majority Carrier Conduction. ＊Plastic Material used Carries Underwriters Laboratory Flammability Classification 94V-O DO-214AC(SMA) ＊In compliance with EU RoHs 2002/95/EC directives MAXIMUM RATINGS Characteristic Symbol SK345 Unit VRRM VRWM VR 45 V VR(RMS) 31.5 V IO 3.0 A 70 A TJ , TSTG -65 to +150 ℃ Symbol SK345 Unit Maximum Instantaneous Forward Voltage ( IF =3 Amp ) VF 0.55 V Maximum Instantaneous Reverse Current ( Rated DC Voltage, TC = 25℃ ) ( Rated DC Voltage, TC = 125℃ ) IR 0.5 20 mA Max.Thermal Resistance junction to Lead (note 1) Rθ jL 36 ℃/w Maximum Thermal Resistance Junction to Case RθJC 60 ℃/w CP 210 PF Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RMS Reverse Voltage Average Rectifier Forward Current Non-Repetitive Peak Surge Current (Surge applied at rate load conditions halfware, single phase, 60Hz) Operating and Storage Junction Temperature Range IFSM DIM A B C D E F G H MILLIMETERS MIN MAX 2.20 2.80 4.10 4.70 1.30 1.70 4.70 5.30 1.90 2.50 1.30 0.30 0.95 1.50 ELECTRIAL CHARACTERISTICS Characteristic Typical Junction Capacitance ( Reverse Voltage of 4 volts & f=1 MHz ) Notes: 1.Mounted 1 inch square P.C. Board CASE--Transfer molded plastic OLARITY--Cathode indicated polarity band SK345 FIG-2 TYPICAL FORWARD CHARACTERISITICS NSTANTANEOUS FORWARD CURRENT (Amp.) AVERAGE FORWARD RECTIFIED CURRENT (Amp.) FIG-1 FORWARD CURRENT DERATING CURVE FORWARD VOLTAGE (Volts) FIG-3 TYPICAL REVERSE CHARACTERISTICS FIG-4 TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE (PF) INSTANTANEOUS REVERSE CURRENT (mA.) CASE TEMPERATURE (℃) PERCENT OF RATED REVERSE VOLTAGE (﹪) PEAK FORWARD SURGE CURRENT (Amp.) FIG-5 PEAK FORWARD SURGE CURRENT NUMBER OF CYCLES AT 60 Hz REVERSE VOLTAGE (Volts)