LITE-ON SEMICONDUCTOR US1A thru US1M REVERSE VOLTAGE - 50 to 1000 Volts FORWARD CURRENT - 1.0 Ampere SURFACE MOUNT ULTRA FAST RECTIFIERS FEATURES SMA Glass passivated chip Ultra fast switching for high efficiency For surface mounted applications Low forward voltage drop and high current capability Low reverse leakage current Plastic material has UL flammability classification 94V-0 SMA A DIM. MIN. MAX. A 4.06 4.57 B 2.29 2.92 C 1.27 1.63 D 0.15 0.31 E 4.83 5.59 F 0.05 0.20 G 2.01 2.40 H 0.76 1.52 C B G MECHANICAL DATA H Case : Molded plastic Polarity : Indicated by cathode band Weight : 0.002 ounces, 0.064 grams D F E All Dimensions in millimeter MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20% CHARACTERISTICS Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current SYMBOL US1A US1B US1D US1G US1J US1K US1M UNIT VRRM VRMS VDC 50 35 50 100 70 100 200 140 200 400 280 400 600 420 600 800 560 800 1000 700 1000 V V V @TL =75 C I(AV) 1.0 A Peak Forward Surge Current 8.3ms single half sine-wave super imposed on rated load (JEDEC METHOD) IFSM 30 A Maximum forward Voltage at 1.0A DC VF Maximum DC Reverse Current at Rated DC Blocking Voltage IR @TJ =25 C @TJ =100 C Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) 1.0 Operating Temperature Range Storage Temperature Range 1.7 5.0 100 V uA TRR 50 75 ns CJ 20 10 pF R0JA Typical Thermal Resistance (Note 3) 1.3 R0JL R0JC 60 22 18 C/W TJ -55 to +150 C TSTG -55 to +150 C NOTES : 1.Reverse Recovery Test Conditions :IF=0.5A,IR=1.0A,IRR=0.25A. 2.Measured at 1.0MHz and applied reverse voltage of 4.0V DC. 3.Thermal Resistance junction to Ambient, Lead and Case. REV. 6, Apr-2010, KSFA01 RATING AND CHARACTERISTIC CURVES US1A thru US1M FIG.2 - MAXIMUM NON-REPETITIVE SURGE CURRENT 0.8 0.6 0.4 0.2 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD 0 25 75 50 100 125 150 175 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD CURRENT AMPERES FIG.1 - FORWARD CURRENT DERATING CURVE 1.0 30 20 10 Pulse Width 8.3ms Single Half-Sine-Wave (JEDEC METHOD) 0 1 2 20 10 50 100 NUMBER OF CYCLES AT 60Hz LEAD TEMPERATURE , C FIG.3 - TYPICAL FORWARD CHARACTERISTICS FIG.4 - TYPICAL REVERSE CHARACTERISTICS 1000 INSTANTANEOUS REVERSE CURRENT, (uA) 10 US1G US1A to US1D 1.0 US1J to US1M 0.1 TJ = 25 C PULSEWIDTH:300us TJ = 125 C 100 10 TJ = 25 C 1.0 0.1 .01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 INSTANTANEOUS FORWARD VOLTAGE, (VOLTS) 20 0 40 60 FIG.5 - TYPICAL JUNCTION CAPACITANCE US1A to US1G 10 US1J to US1M 1 0.1 1 80 100 120 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) 100 CAPACITANCE , (pF) INSTANTANEOUS FORWARD CURRENT, (A) 5 10 REVERSE VOLTAGE , VOLTS 100 140