MOSPEC MS20 Thru MS22 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 20-40 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 ＊Moisture Sensitivity Level: MSL-1 DO-214AA(SMB) ＊In compliance with EU RoHs 2002/95/EC directives MAXIMUM RATINGS Characteristic 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 half-wave, single phase,60Hz ) Operating and Storage Junction Temperature Range Symbol MS20 MS21 MS22 Unit VRRM VRWM VR 20 30 40 V VR(RMS) 14 21 28 V IO 3.0 A IFSM 75 A TJ , TSTG -65 to +150 ℃ DIM A B C D E F G H MILLIMETERS MIN MAX 3.30 3.90 4.20 4.60 1.80 2.20 5.10 5.60 1.90 2.50 1.30 0.22 0.95 1.35 ELECTRIAL CHARACTERISTICS Characteristic Maximum Instantaneous Forward Voltage (IF =3.0 Amp) (IF =9.0 Amp) Maximum Instantaneous Reverse Current (Rated DC Voltage, TC = 25℃) (Rated DC Voltage, TC = 125℃) Typical Thermal Resistance junction to case Typical Junction Capacitance (Reverse Voltage of 4 volts & f=1 MHz) Symbol MS20 VF 0.475 0.850 MS21 MS22 0.550 0.970 Unit V IR 0.5 20 mA Rθ j-c 40 ℃/w CP 210 190 pF CASE--Transfer molded plastic POLARITY--Cathode indicated polarity band MS20 Thru MS22 FIG-2 TYPICAL FORWARD CHARACTERISITICS NSTANTANEOUS FORWARD CURRENT (Amp.) AVERAGE FORWARD RECTIFIED CURRENT (Amp.) FIG-1 FORWARD CURRENT DERATING CURVE MS20 MS21-MS22 CASE TEMPERATURE (℃) FORWARD VOLTAGE (Volts) FIG-3 TYPICAL REVERSE CHARACTERISTICS FIG-4 TYPICAL JUNCTION CAPACITANCE o Tj=75 c o Tj=25 c PERCENT OF RATED REVERSE VOLTAGE (﹪) JUNCTION CAPACITANCE (PF) INSTANTANEOUS REVERSE CURRENT (mA.) o Tj=125 c MS20 MS21-MS22 REVERSE VOLTAGE (Volts) PEAK FORWARD SURGE CURRENT (Amp.) FIG-5 PEAK FORWARD SURGE CURRENT NUMBER OF CYCLES AT 60 Hz 8K-B