There are many other standard features in Motorola 2. MOLYBDENUM DISCS on both sides of the die minimize Schottky rectifiers that give added performance and reliability. fatigue from power cycling in all metal products. The plastic 1. GUARDRINGS are included in all Schottky die for reverse TO-220 devices have a special solder formulation for the voltage stress protection from high rates of dv/dt to virtually Same purpose. eliminate the need for snubber networks. The guardring also 3. QUALITY CONTROL monitors all critical fabrication oper- operates like a zener and avalanches when subjected to ations and performs selected stress tests to assure constant voltage transients. processes. Table 24. Schottky Rectifiers (continued) **I1g, AVERAGE RECTIFIED FORWARD CURRENT (Amperes) 8 75 | 10 15 16 20 60-01 221B-01 221A-04 56-03 221B-01 221A-04 (TO-220AC) (TO-220AB) | (DO-203AA) | (TO-220AC) | {TO-220AB) Metal Plastic Plastic (DO-4) Plastic Plastic f ate VarRM / ir (Volts) 15 20 BYS08-20tt 4N5826 25 30 BYS08-30tt 1N5827 35 MBR735 MBR1035 | MBR1535CT MBR1635 | MBR2035CT 40 1N5828 45 BYS08-45tt MBR745 MBR1045 | MBR1545CT MBR1645_ | MBR2045CT 50 BYS08-50tt 60 MBR1060 MBR2060CT 70 MBR1070 MBR2070CT 80 MBR1080 MBR2080CT 90 MBR1090 MBR2090CT 100 MBR10100 MBR20100CT IFSM 400 150 150 150 500 150 150 (Amps) tT @ Rated lo 100 105 135 105 85 125 135 TTL @ Rated Io (C} WJ oe 150 150 150 150 125 150 150 Max Ve @ 0.47 0.57 0.57 0.72 @15A *0.5 0.57 0.72 @20A lpm = Io To = 25C | Tc = 125C | Te = 125C | Te = 125C | To = 26C | Te = 125C | Te = 125C * Values are for the 40 volt units. The lower voltage parts provide lower limits. ** 10 is total device output. t Must be derated for reverse power dissipation. See Data Sheet. tt No. CECC 86-819-029. MOTOROLA 42 A SWITCHMODE DESIGNER'S GUIDE