Certificate : TH97/10561QM SKN7 - SKN9 SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS SMA (DO-214AC) PRV : 20 - 40 Volts IO : 1.0 Ampere 5.0 ± 0.15 High current capability High surge current capability High reliability High efficiency Low power loss Low cost Low forward voltage drop Pb / RoHS Free 4.5 ± 0.15 1.1 ± 0.3 FEATURES : * * * * * * * * Certificate : TW00/17276EM 0.2 ± 0.07 1.2 ± 0.2 2.6 ± 0.15 2.1 ± 0.2 2.0 ± 0.2 MECHANICAL DATA : * * * * * * Dimensions in millimeters 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 : 0.067 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 SKN7 SKN8 SKN9 UNIT Maximum Recurrent Peak Reverse Voltage VRRM 20 30 40 V Maximum RMS Voltage VRMS 14 21 28 V Maximum DC Blocking Voltage VDC 20 30 40 V TL = 90 °C IF(AV) 1.0 A Maximum Peak Forward Surge Current, 8.3ms single half sine wave Superimposed on rated load (JEDEC Method) IFSM 25 A Maximum Forward Voltage at I F = 1.0 A VF Maximum Average Forward Current 0.45 0.55 0.6 Volt. Maximum Reverse Current Ta = 25 °C at Rated DC Blocking Voltage (Note 1) Ta = 100 °C IR IR(H) 1.0 10 mA 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 Notes : (1) Pulse Test : Pulse Width = 300 μs, Duty Cycle = 2%. (2) Measured at 1 MHz and applied reverse voltage of 4.0 volts. Page 1 of 2 Rev. 02 : March 25, 2005 Certificate : TH97/10561QM Certificate : TW00/17276EM 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 20 15 10 5 0 0 0 20 40 60 80 100 120 140 1 LEAD TEMPERATURE, (°C) FIG.3 - TYPICAL FORWARD CHARACTERISTICS 6 10 20 40 60 100 10 SKN7 SKN9 10 TJ= 100 °C REVERSE CURRENT, MILLIAMPERES FORWARD CURRENT, AMPERES 4 FIG.4 - TYPICAL REVERSE CHARACTERISTICS 20 SKN8 1.0 TJ = 25 °C PULSE WIDTH = 300μs DUTY CYCLE = 1% 0.1 0.1 2 NUMBER OF CYCLES AT 60Hz 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 1.0 TJ = 25 °C 0.1 0.01 0 2.1 20 40 60 80 100 120 140 PERCENT OF RATED REVERSE VOLTAGE, (%) FORWARD VOLTAGE, VOLTS Page 2 of 2 Rev. 02 : March 25, 2005