SK32 - SK3B SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS PRV : 20 - 100 Volts IO : 3.0 Amperes SMC (DO-214AB) 0.060(1.5 2) 0.260(6.60) High current capability High surge current capability High reliability High efficiency Low power loss Low forward voltage drop 0.280(7.11) 0.320(8.13) * * * * * * 0.3 05(7.75) 0.030(0.7 6) FEATURES : 0.008(0.203) 0.004(0.102) 0.121(3.07) 0.012(0.305) 0.115(2.92) 0.006(0.152) 0.245(6.2 2) 0.103(2.62 ) 0.220(5.5 9) 0.079(2.00 ) MECHANICAL DATA : * * * * * * Case : SMC Molded plastic Epoxy : UL94V-O rate flame retardant Lead : Lead Formed for Surface Mount Polarity : Color band denotes cathode end Mounting position : Any Weight : 0.21 gram Dimensions in inches and (millimeter) 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 SK SK SK SK SK SK SK SK UNIT 32 33 34 35 36 37 38 39 3B Maximum Recurrent Peak Reverse Voltage VRRM 20 Maximum RMS Voltage VRMS 14 21 Maximum DC Blocking Voltage VDC 20 Maximum Average Forward Current See Fig.1 30 40 50 60 70 80 90 100 V 28 35 42 49 56 63 70 V 30 40 50 60 70 80 90 100 V IF(AV) 3.0 A IFSM 80 A Maximum Peak Forward Surge Current, 8.3ms single half sine wave superimposed on rated load (JEDEC Method) Maximum Forward Voltage at IF = 3.0 A Maximum Reverse Current at Rated DC Blocking Voltage (Note 1) VF 0.5 0.74 0.79 V 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% Page 1 of 2 Rev. 01 : January 10, 2004 RATING AND CHARACTERISTIC CURVES ( SK32 - SK3B ) FIG.2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 100 3.0 SK35 THRU SK3B 2.4 SK32 SK33 SK34 1.8 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD CURRENT, AMPERES FIG.1 - FORWARD CURRENT DERATING CURVE 1.2 0.6 0 0 25 50 75 100 125 150 80 60 40 20 0 175 1 LEAD TEMPERATURE, (°C) FORWARD CURRENT, AMPERES 20 SK32 SK33 SK34 SK38 SK39 SK3B SK35 SK36 SK37 1.0 TJ = 25 °C PULSE WIDTH = 300µs DUTY CYCLE = 2% 0.1 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 4 10 20 40 100 1.9 FIG.4 - TYPICAL REVERSE CHARACTERISTICS REVERSE CURRENT, MILLIAMPERES FIG.3 - TYPICAL FORWARD CHARACTERISTICS 10 2 NUMBER OF CYCLES AT 60Hz 2.1 10 TJ= 100 °C 1.0 TJ = 25 °C 0.1 0.01 0 20 40 60 80 100 120 140 PERCENT OF RATED REVERSE VOLTAGE, (%) FORWARD VOLTAGE, VOLTS Page 2 of 2 Rev. 01 : January 10, 2004