SR320 THRU SR3A0 SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER Reverse Voltage - 20 to 60 Volts Forward Current - 1.0Ampere FEATURES DO-41 . Plastic package has Underwriters Laboratory Flammability Classification 94V-0 . Metal sliicon junction ,majority carriet conduction . Guard ring for overcoltage protection 1.0(25.4) MIN . Low power loss,high efficiency J . High current capability ,Low forward voltage drop 0.107(2.7) 0.080(2.0) DIA . High surge capability 0.205(5.20) 0.180(4.10) . For use in low voltage ,high frequency inverters, free wheeling , and polarilty protection applications . High temperature soldering guaranteed: 250 /10 seconds at terminals, 0.375"(9.5mm)lead length, 5lbs.(2.3kg)tension 1.0(25.4) MIN 0.034(0.85) 0.026(0.65) DIA. MECHANICAL DATA Dimensions in inches and (millimeters) Case: JEDEC DO-41 molded plastic body Terminals: Lead solderable per MIL-STD-750,method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.012ounce, 0.33 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS (Ratings at 25 ambient temperature unless otherwise specified,Single phase,half wave,resistive or inductive) load. For capacitive load,derate by 20%) Symbols SR320 SR330 SR340 SR350 SR360 SR380 SR3A0 Units Maximum repetitive peak reverse voltage V RRM 20 30 40 50 60 80 100 Volts Maximum RMS voltage V RMS 14 21 28 35 42 57 71 Volts Maximum DC blocking voltage V DC 20 30 40 50 60 80 100 Volts Macimum average forward rectified I(AV) 3.0 Amp IFSM 80.0 Amps current 0.375"(9.5mm)lead length (see Fig.1) Peak forward surge current 8.3ms singel half sine-wave superimposed on rated load (JEDEC method) Maximum instantaneous forward voltage at 3.0 A(Note 1) Maximum instantaneous reverse TA=25 current at rated DC blocking voltage(Note 1) TA=100 Operating junction temperature range storage temperature range Notes: 1. Pulse test: 300 CJ R R 0.85 10 250 160 40.0 JL 10.0 -65 to +125 TJ -65 to +150 pulse width,1% duty cycle 2.Thermal resistance from juntion to lead vertical P.C.B. Mounted, 0.5"(12.7mm)lead length with 2.5X2.5"(63.5X63.5mm)copper pads 1 pF /W -65 to +150 3.Measure a 1MHz and reverse voltage of 4.0volts Volts mA 20 JA TSTG s 0.70 1.5 IR Typeical junction capacitance(Note 3) Typeical thermal resistance(Note 2) 0.55 VF SR320 THRU SR3A0 SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER Reverse Voltage - 20 to 60 Volts Forward Current - 1.0Ampere FLG.1-FORWARD CURRENT DERATING CURVE FIG.2-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT FIG.3-TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS FIG.4-TYPICAL REVERSE CHARACTERISTICS FIG.5-TYPICAL JUNCTION CAPACITANCE FIG.6-TYPICAL TRANSIENT THERMAL IMPEDANCE 2