SK32S - SK3BS SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS PRV : 20 - 100 Volts IO : 3.0 Amperes SMB (DO-214AA) * * * * * * High current capability High surge current capability High reliability High efficiency Low power loss Low forward voltage drop 0.22 ± 0.07 2.0 ± 0.1 2.3 ± 0.2 3.6 ± 0.15 Dimensions in millimeter MECHANICAL DATA : * * * * * * 4.8 ± 0.15 5.4 ± 0.15 FEATURES : 1.1 ± 0.3 Case : SMB (DO-214AA) Molded plastic Epoxy : UL94V-O rate flame retardant Lead : Lead Formed for Surface Mount Polarity : Color band denotes cathode end Mounting position : Any Weight : 0.093 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25 °C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. RATING SYMBOL SK 32S SK 33S SK 34S SK 35S SK 36S SK 37S SK 38S SK 39S SK 3BS UNIT Maximum Recurrent Peak Reverse Voltage VRRM 20 30 40 50 60 70 80 90 100 Volts Maximum RMS Voltage VRMS 14 21 28 35 42 49 56 63 70 Volts Maximum DC Blocking Voltage VDC 20 30 40 50 60 70 80 90 100 Volts Maximum Average Forward Current See Fig.1 IF(AV) 3.0 Amps. IFSM 80 Amps. Peak Forward Surge Current, 8.3ms single half sine wave superimposed on rated load (JEDEC Method) Maximum Forward Voltage at IF = 3.0 Amps. Maximum Reverse Current at Rated DC Blocking Voltage (Note 1) VF 0.5 0.74 0.79 Volt. Ta = 25 °C IR 0.5 mA Ta = 100 °C IR(H) 20 mA Junction Temperature Range TJ Storage Temperature Range TSTG - 65 to + 125 - 65 to + 150 - 65 to + 150 °C °C Notes : (1) Pulse Test : Pulse Width = 300 µs, Duty Cycle = 2% UPDATE : MAY 10, 1999 RATING AND CHARACTERISTIC CURVES ( SK32S - SK3BS ) FIG.2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 100 3.0 SK35S THRU SK3BS 2.4 SK32S SK33S SK34S 1.8 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD CURRENT, AMPERES FIG.1 - FORWARD CURRENT DERATING CURVE 1.2 0.6 0 0 0 25 50 75 100 125 150 80 60 40 20 0 1 175 2 4 LEAD TEMPERATURE, (°C) REVERSE CURRENT, MILLIAMPERES FORWARD CURRENT, AMPERES SK38S SK39S SK3BS SK35S SK36S SK37S 1.0 T J = 25 °C PULSE WIDTH = 300µs DUTY CYCLE = 2% 0.1 0.1 0.3 0.5 0.7 0.9 1.1 20 40 60 100 FIG.4 - TYPICAL REVERSE CHARACTERISTICS 20 10 10 NUMBER OF CYCLES AT 60Hz FIG.3 - TYPICAL FORWARD CHARACTERISTICS SK32S SK33S SK34S 6 1.3 1.5 FORWARD VOLTAGE, VOLTS 1.7 1.9 2.1 10 T J= 100 °C 1.0 T J = 25 °C 0.1 0.01 0 20 40 60 80 100 120 PERCENT OF RATED REVERSE VOLTAGE, (%) 140