81CNQ035

FST8035 - FST8050 F A N 2-PLCS P E L 1 2 3 A=Common Anode 1 2 3 Common Cathode Dim. Inches A C E F G H J K L M N P 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 Millimeter 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 Minimum Maximum Minimum Maximum Notes 1 2 3 Schottky MiniMod M 3 PINS eq sp at .200 G K C J H Note: Baseplate Common with Pin 2 1 2 3 D=Doubler Dia. Microsemi Catalog Number FST8035* FST8040* FST8045* FST8050* Industry Part Number 81CNQ035, A 81CNQ040, A 81CNQ045, A Working Peak Reverse Voltage 35V 40V 45V 50V Repetitive Peak Reverse Voltage 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 1 Typical Forward Characteristics - Per Leg 1000 800 600 Junction Capacitance - pF 400 Figure 3 Typical Junction Capacitance - Per Leg 10000 6000 4000 2000 1000 600 400 200 100 0.1 200 100 80 60 40 Instantaneous Forward Current - Amperes 0.5 1.0 5.0 10 50 100 Reverse Voltage - Volts Figure 4 Forward Current Derating - Per Leg 180 170 160 150 140 130 120 110 0 0.5 10 15 60 20 90 25 30 120 35 180 40 45 DC 50 20 150 C 25 C 10 8.0 6.0 4.0 2.0 1.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 Instantaneous Forward Voltage - Volts Maximum Allowable Case Temperature - C Maximum Power Dissipation - Watts Average Forward Current - Amperes Figure 5 Maximum Forward Power Dissipation - Per Leg 35 30 25 20 15 10 5.0 0 0 5.0 10 15 20 25 30 35 40 45 50 Average Forward Current - Amperes 60 90 120 DC 180 Figure 2 Typical Reverse Characteristics - Per Leg Typical Reverse Current - mAmperes 1000 175 C 100 10 1.0 0.1 .01 75 C 25 C 0 10 20 30 40 50 125 C Reverse Voltage - Volts www.microsemi.com January, 2010 - Rev. 4