SKN7 - SKN9 SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS PRV : 20 - 40 Volts IO : 1.0 Ampere SMA (DO-214AC) High current capability High surge current capability High reliability High efficiency Low power loss Low cost Low forward voltage drop 0.2 ± 0.07 1.2 ± 0.2 2.1 ± 0.2 2.6 ± 0.15 2.0 ± 0.2 MECHANICAL DATA : * * * * * * 1.1 ± 4.5 ± 0.15 * * * * * * * 5.0 ± 0.15 FEATURES : Case : SMA Molded plastic Epoxy : UL94V-O rate flame retardant Lead : Lead Formed for Surface Mount Polarity : Color band denotes cathode end Mounting position : Any Weight : 0.064 gram Dimensions in millimeter MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Rating at 25 ° C ambient temperature unless otherw ise specified. Single phase, half w ave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20%. RATING SYMBOL SKN7 SKN8 SKN9 UNIT Maximum Recurrent Peak Reverse Voltage VRRM 20 30 40 Volts Maximum RMS Voltage VRMS 14 21 28 Volts Maximum DC Blocking Voltage VDC 20 30 40 Volts Maximum Average Forward Current TL = 90 ° C IF(AV) 1.0 Amp. IFSM 25 Amps. Peak Forward Surge Current, 8.3ms single half sine wave Superimposed on rated load (JEDEC Method) Maximum Forward Voltage at I F = 1.0 Amp. Maximum Reverse Current Ta = 25 °C VF 0.45 0.55 0.6 Volt. IR 1.0 mA IR(H) 10 mA Typical Junction Capacitance (Note 2) CJ 110 pF Junction Temperature Range TJ - 65 to + 125 °C Storage Temperature Range TSTG - 65 to + 125 °C at Rated DC Blocking Voltage (Note 1) Ta = 100 ° C Notes : (1) Pulse Test : Pulse Width = 300 µs, Duty Cycle = 2%. (2) Measured at 1 MHz and applied reverse voltage of 4.0 volts. UPDATE : SEPTEMBER 12, 1998 RATING AND CHARACTERISTIC CURVES ( SKN7 - SKN9 ) FIG.2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 25 1.0 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD CURRENT, AMPERES FIG.1 - FORWARD CURRENT DERATING CURVE 0.8 0.6 0.4 0.2 0 0 20 40 60 80 100 120 20 15 10 5 0 140 1 LEAD TEMPERATURE, (°C) 20 SKN9 10 SKN8 1.0 TJ = 25 °C PULSE WIDTH = 300µs DUTY CYCLE = 1% 0.1 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 FORWARD VOLTAGE, VOLTS 4 6 10 20 40 60 100 1.9 FIG.4 - TYPICAL REVERSE CHARACTERISTICS REVERSE CURRENT, MILLIAMPERES FORWARD CURRENT, AMPERES FIG.3 - TYPICAL FORWARD CHARACTERISTICS SKN7 2 NUMBER OF CYCLES AT 60Hz 10 TJ = 100 °C 1.0 TJ = 25 °C 0.1 0.01 0 2.1 20 40 60 80 100 120 PERCENT OF RATED REVERSE VOLTAGE, (%) 140