Schottky MiniMod FST8035 - FST8050 F A Dim. Inches N 2-PLCS P 1 2 1 2 3 Common Cathode E 3 A C E F G H J K L M N P L 1 2 3 A=Common Anode M 3 PINS eq sp at .200 G K C J Millimeter Minimum Maximum Minimum Maximum Notes 1 2 3 D=Doubler 1.180 .027 .350 1.490 .695 .088 .240 .115 .460 .065 .151 .015 1.195 .037 .370 1.510 .715 .098 .260 .135 .480 .085 .161 .025 29.97 0.69 8.89 37.85 17.65 2.24 6.10 2.92 11.68 1.65 3.84 0.38 30.35 0.94 9.40 38.35 18.16 2.49 6.60 3.43 12.19 2.16 4.09 0.64 Dia. H Note: Baseplate Common with Pin 2 Microsemi Catalog Number Industry Part Number FST8035* FST8040* FST8045* FST8050* 81CNQ035, A 81CNQ040, A 81CNQ045, A Working Peak Reverse Voltage Repetitive Peak Reverse Voltage 35V 40V 45V 50V 35V 40V 45V 50V Schottky Barrier Rectifier Guard Ring Protection 2X40 Amperes avg. 175°C Junction Temperature Reverse Energy Tested VRRM - 35 to 50 Volts ROHS Compliant *Add the Suffix A for Common Anode, D for Doubler Electrical Characteristics I F(AV) 80 Amps Average forward current per pkg I F(AV) 40 Amps Average forward current per leg I FSM 800 Amps Maximum surge current per leg Max repetitive peak reverse current per leg I R(OV) 2 Amps VFM 0.49 Volts Max peak forward voltage per leg VFM 0.68 Volts Max peak forward voltage per leg I RM 50 mA Max peak reverse current per leg I RM 2 mA Max peak reverse current per leg CJ 1900 pF Typical junction capacitance per leg TC = 145°C, Square wave, R0JC = 0.5°C/W TC = 145°C, Square wave, R0JC = 1.0°C/W 8.3 ms, half sine, T J = 175°C f = 1 KHZ, 25°C, 1µsec square wave I FM = 40A: T J = 175°C* I FM = 40A: T J = 25°C* VRRM, T J = 125°C* VRRM, T J = 25°C VR = 5.0V, T C = 25°C *Pulse test: Pulse width 300µsec, Duty cycle 2% Thermal and Mechanical Characteristics Storage temp range Operating junction temp range Max thermal resistance per leg Max thermal resistance per pkg Typical thermal resistance (greased) Mounting Base Torque Weight T STG TJ R 0JC R 0JC R 0CS -55°C to 175°C -55°C to 175°C 1.0°C/W Junction to case 0.5°C/W Junction to case 0.3°C/W Case to sink 10 inch pounds maximum 0.3 ounce (8.4 grams) typical www.microsemi.com January, 2010 - Rev. 4 FST8035 - FST8050 Figure 3 Typical Junction Capacitance - Per Leg 1000 10000 800 6000 600 4000 Junction Capacitance - pF Figure 1 Typical Forward Characteristics - Per Leg 400 200 100 80 2000 1000 60 600 400 200 100 0.1 20 150 C 10 25 C 8.0 6.0 4.0 2.0 1.0 0 0.2 0.4 0.6 0.8 1.0 1.2 100 50 160 150 140 130 120 110 0 Maximum Power Dissipation - Watts 175 C 125 C 1.0 75 C 25 C 10 20 Reverse Voltage - Volts 30 10 15 90 20 25 120 30 35 180 40 DC 50 45 Figure 5 Maximum Forward Power Dissipation - Per Leg 100 0 0.5 60 Average Forward Current - Amperes 1000 Typical Reverse Current - mAmperes 10 170 1.4 Figure 2 Typical Reverse Characteristics - Per Leg .01 5.0 180 Instantaneous Forward Voltage - Volts 0.1 1.0 Figure 4 Forward Current Derating - Per Leg Maximum Allowable Case Temperature - C Instantaneous Forward Current - Amperes 40 10 0.5 Reverse Voltage - Volts 40 50 35 30 DC 25 20 60 15 90 120 180 10 5.0 0 0 5.0 10 15 20 25 30 35 40 45 Average Forward Current - Amperes www.microsemi.com January, 2010 - Rev. 4 50