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 2.62 H 0.76 1.52 C B G H MECHANICAL DATA E Case : Molded plastic Polarity : Indicated by cathode band Weight : 0.002 ounces, 0.064 grams D F 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% SYMBOL CHARACTERISTICS Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current VRRM VRMS VDC US1A 50 35 50 US1B US1D US1G US1J US1K US1M 100 70 100 200 140 200 400 280 400 600 420 600 800 560 800 1000 700 1000 UNIT 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 Maximum DC Reverse Current at Rated DC Blocking Voltage @TJ =25 C @TJ =100 C Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) Typical Thermal Resistance (Note 3) Operating Temperature Range Storage Temperature Range VF 1.3 1.0 1.7 5.0 100 IR V uA TRR 50 75 ns CJ 20 10 pF R0JL 30 C/W TJ -55 to +150 C -55 to +150 C TSTG 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 Lead. REV. 3, Mar-2005, KSFA01 RATING AND CHARACTERISTIC CURVES US1A thru US1M 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 FIG.2 - MAXIMUM NON-REPETITIVE SURGE CURRENT 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 10 1000 INSTANTANEOUS REVERSE CURRENT, (uA) INSTANTANEOUS FORWARD CURRENT, (A) 5 US1G US1A to US1D 1.0 US1J to US1M 0.1 TJ = 25 C PULSEWIDTH:300us .01 TJ = 125 C 100 10 TJ = 25 C 1.0 0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 INSTANTANEOUS FORWARD VOLTAGE, (VOLTS) 1.8 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) REV. 3, Mar-2005, KSFA01