RB490D

MCC Features • • •
  omponents 21201 Itasca Street Chatsworth    !"# $ %    !"# RB490D THRU RB491D










Low Turn-on Voltage Fast Switching PN Junction Guard Ring for Transient and ESD Protection 1Amp Surface Mount Schottky Barrier Diode Mechanical Data • • • • • Case :SOT-346,Molded Plastic Terminals :Solderable per MIL-STD-202,Method 208 Polarity :See Diagrams Below Weight :0.008 grams (approx) Mountion Position :Any S 2 20 to 40 Volts SOT-346 A L 3 1 Maximum Ratings • • Operating Temperature: -25°C to +125°C Storage Temperature: -50°C to +125°C MCC Catalog Number RB491D RB490D Device Marking Maximum Recurrent Peak Reverse Voltage 20V 40V Maximum RMS Voltage 14V 28V Maximum DC Blocking Voltage 20V 40V B 3 CATHODE 2 ANODE D G C H DIMENSIONS INCHES DIM A B C D G H J K L S MIN .106 .051 .039 .014 .067 .000 .004 .008 .049 .089 MAX .122 .067 .051 .020 .091 .004 .010 .024 .065 .118 MIN 2.70 1.30 1.00 0.35 1.70 0.00 0.10 0.20 1.25 2.25 MM MAX 3.10 1.70 1.30 0.50 2.30 0.10 0.26 0.60 1.65 3.00 NOTE J K 10T 10F Electrical Characteristics @ 25°C Unless Otherwise Specified Average Forward Current Peak Forward Surge Current Maximum Forward Voltage Drop Per Element RB491D RB490D Maximum DC Reverse Current At Rated DC Blocking Voltage IF(AV) IFSM 1.0A 5A TA = 90°C 8.3ms, half sine Suggested Solder Pad Layout .031 .800 VF 0.45V 0.53V 100µΑ 4.0mA IFM = 1.0A TJ = 25°C TJ = 25°C TJ = 100°C .039 1.000 0.098-0.118 2.5-3.0 .094 2.400 inches mm IR .037 .950 .037 .950 *Pulse Test: Pulse Width 300 µsec, Duty Cycle 1% www.mccsemi.com RB490D thru RB491D RATING AND CHARACTERISTIC CURVES FIG.1-TYPICAL FORWARD CHARACTERISTICS AVERAGE FORWARD CURRENT,(A) MCC FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE 1.2 1.0 0.8 0.6 0.4 0.2 0 0 20 40 60 80 100 120 140 160 180 200 Single Phase Half Wave 60Hz Resistive Or Inductive Load 50 INSTANTANEOUS FORWARD CURRENT,(A) 10 49 1 3.0 1.0 49 0 Tj=25 C Pulse Width 300us 1% Duty Cycle AMBIENT TEMPERATURE ( C) 0.1 .01 .1 .3 .5 .7 .9 1.1 1.3 1.5 FIG.4-TYPICAL JUNCTION CAPACITANCE 175 150 125 100 75 FORWARD VOLT AGE,(V) FIG.3 - TYPICAL REVERSE CHARACTERISTICS 100 JUNCTION CAPACITANCE,(pF) 50 25 REVERSE LEAKAGE CURRENT, (mA) 10 0 .01 .05 .1 .5 1 5 10 50 100 REVERSE VOLTAGE,(V) 1.0 Tj=75 C .1 Tj=25 C .01 0 20 40 60 80 100 120 140 PERCENTAGE RATED PEAK REVERSE VOL TAGE www.mccsemi.com