SMA5817 -SMA5819 SURFACE MOUNT SCHOTTKY BARRIER RECTIFIERS PRV : 20 - 40 Volts IO : 1.0 Ampere SMA-L FEATURES : 5.4 ± 0.2 4.4 ± 0.2 1.3 ± 0.2 * High current capability * High surge current capability * High reliability * High efficiency * Low power loss * Low cost * Low forward voltage drop * Pb / RoHS Free 1.8 ± 0.2 2.3 ± 0.2 2.7 ± 0.2 MECHANICAL DATA : 1.8 ± 0.2 * Case : SMA-L Molded plastic * Epoxy : UL94V-O rate flame retardant * Polarity : Color band denotes cathode end * Mounting position : Any * Weight : 0.060 gram (Approximately) Dimensions in 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 SMA5817 SMA5818 SMA5819 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 Maximum Average Forward Current 0.375", 9.5mm Lead Length at TL = 90 °C Maximum Peak Forward Surge Current, 8.3ms single half sine wave Superimposed on rated load (JEDEC Method) TL = 70 °C Maximum Forward Voltage at IF = 1.0 A Ta = 25 °C IF(AV) 1.0 A IFSM 25 A VF 0.45 0.55 0.60 V IR 1.0 mA IR(H) 10 mA RθJL CJ 15 °C/W 110 pF Junction Temperature Range TJ - 65 to + 125 °C Storage Temperature Range TSTG - 65 to + 125 °C Maximum Reverse Current at Rated DC Blocking Voltage (Note 1) Typical Thermal Resistance (Note 2) Typical Junction Capacitance (Note 3) Ta = 100 °C Notes : (1) Pulse Test : Pulse Width = 300 µs, Duty Cycle = 2%. (2) Thermal Resistance from junction to lead, PC board Mounting with 0.375" (9.5mm) Lead Lengths and 1.5 in2 (38.1mm 2) copper pads. (3) Measured at 1 MHz and applied reverse voltage of 4.0 volts. Page 1 of 2 Rev. 01 : September 30, 2005 RATING AND CHARACTERISTIC CURVES ( SMA5817 - SMA5819 ) 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 20 15 10 5 0 0 20 40 60 80 100 120 140 1 LEAD TEMPERATURE, (°C) 10 20 40 60 100 10 SMA5817 TJ= 100 °C SMA5819 REVERSE CURRENT, MILLIAMPERES FORWARD CURRENT, AMPERES 6 FIG.4 - TYPICAL REVERSE CHARACTERISTICS 20 SMA5818 1.0 TJ = 25 °C PULSE WIDTH = 300µs 0.1 0.1 4 NUMBER OF CYCLES AT 60Hz FIG.3 - TYPICAL FORWARD CHARACTERISTICS 10 2 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.0 TJ = 25 °C 0.1 0.01 0 1.9 2.1 20 40 60 80 100 120 140 PERCENT OF RATED REVERSE VOLTAGE, (%) FORWARD VOLTAGE, VOLTS Page 2 of 2 Rev. 01 : September 30, 2005