CURRENT 1.0 Ampere VOLTAGE 20 to 40 Volts ER490 / ER491 Features Low Turn-on Voltage Fast Switching PN Junction Guard Ring for Transient a nd ESD Protection SC-59 A L S 2 3 Top View B 1 Mechanical Data D Case: Molded Plastic Terminals: Solderable per MIL-STD-202, Method 208 Polarity: See Diagrams Below Weight: 0.008 grams (approx.) Mounting Position: Any G C K H 3 2 3 CATHODE 2 ANODE ER491 Marking : 10T J 3 CATHODE Dim Min Max A 2.70 3.10 B 1.30 1.70 C 1.00 1.30 D 0.35 0.50 G 1.70 2.30 H 0.00 0.10 J 0.10 0.26 K 0.20 0.60 L 1.25 1.65 S 2.25 3.00 All Dim ension in mm 1 2 ANODE ER490 Marking : 10F Maximum Ratings and Electrical Characteristics Rating at 25oC ambient temperature unless otherwise specified Single phase, half wave, 60 Hz, resistive or inductive load. For capacitive load, derate current by 20% Type Number Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current Peak Forward Surge Current, 8.3 ms SingleHalf Sine-wave Superimposed on Rated Loadmethod (JEDEC) Maximum lnstantaneous Forward Voltage At 1.0A Maximum D.C. Reverse Current @ TA=25oC At Rated DC Blocking Voltage @ TA=100oC Operating Junction Temperature Range TJ Storage Temperature Range TSTG ER491 ER490 20 14 20 40 28 40 0.45 Units v v v 1.0 A 5.00 A 0.1 4.0 -25+125 -50+125 0.53 V mA mA o C o C RATINGS AND CHARACTERISTIC CURVES ER490 / ER491 FIG.1-TYPICAL FORWARDCHARACTERISTICS AVERAGE FORWARD CURRENT,(A) 49 1 49 0 ER 3.0 ER INSTANTANEOUSFORWARDCURRENT,(A) 50 10 FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE 1.0 1.2 1.0 0.8 Single Phase 0.6 Half Wave 60Hz Resistive Or Inductive Load 0.4 0.2 0 0 20 40 Tj=25 C Pulse Width 300us 1% Duty Cycle 60 80 100 120 140 160 180 200 AMBIENT TEMPERATURE ( C) O 0.1 .0 1 .1 .3 .5 .7 .9 1. 1 1 .3 1 .5 FIG.4-TYPICAL JUNCTION CAPACITANCE FORWARD VOLTAGE,(V) FIG.3 - TYPICAL REVERSECHARACTERISTICS REVERSE LEAKAGE CURRENT, (mA) 100 JUNCTION CAPACITANCE,(pF) 175 150 125 100 75 50 25 0 .01 10 .05 .1 .5 1 5 REVERSE VOLTAGE,(V) 1.0 Tj=7 5 C Tj=2 5 C .1 .01 0 20 40 60 80 10 0 12 0 14 0 PERCENTAGE RATED PEAK REVERSE VOLTAGE 10 50 100