FST20035 - FST20050
A B Baseplate A=Common Anode
Schottky PowerMod
Dim. Inches Min.
A B C D E F G --1.350 0.700 --3.140 --0.280
Millimeters Min.
--34.29 17.78 --79.76 --7.140
Max.
2.450 1.400 0.800 0.625 3.160 3.650 0.300
Max.
62.23 35.56 20.32 15.88 80.26 92.71 7.670
Notes
C G
E F 1/4-20UNC with Captive Lockwasher Baseplate Common Cathode
Dia.
D
Baseplate D=Doubler Notes: Baseplate: Nickel plated copper
TO-244AB
Schottky Barrier Rectifier Guard Ring Protection 200 Amperes/35 to 50 Volts 175 C Junction Temperature Reverse Energy Tested ROHS Compliant
Microsemi Catalog Number FST20035* FST20040* FST20045* FST20050*
Working Peak Reverse Voltage 35V 40V 45V 50V
Repetitive Peak Reverse Voltage 35V 40V 45V 50V
*Add Suffix A for Common Anode, D for Doubler
Electrical Characteristics
I F(AV) 200 Amps Average forward current per pkg I F(AV) 100 Amps Average forward current per leg I FSM 2000 Amps Maximum surge current per leg Maximum repetitive reverse current per leg I R(OV) 2 Amps VFM Max peak forward voltage per leg 0.80 Volts VFM Max peak forward voltage per leg 0.60 Volts I RM Max peak reverse current per leg 75 mA I RM Max peak reverse current per leg 4.0 mA CJ Typical junction capacitance per leg 4600 pF TC = 143°C, Square wave, R 0JC = 0.25°C/W TC = 143°C, Square wave, R 0JC = 0.50°C/W 8.3ms, half sine,T J = 175°C f = 1 KHZ, 25°C, 1µsec square wave I FM = 200A: J = 25°C* T I FM = 200A: J = 175°C* T VRRM, TJ = 125°C* VRRM, TJ = 25°C VR = 5.0V,TC = 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) Terminal Torque Mounting Base Torque Weight T STG TJ ROJC ROJC ROCS -55°C to 175°C -55°C to 175°C 0.05°C/W Junction to case 0.25°C/W Junction to case 0.08°C/W Case to sink 35-50 inch pounds 30-40 inch pounds 3.4 ounces (95 grams) typical
www.microsemi.com
January, 2010 - Rev. 4
FST20035 - FST20050
Figure 1 Typical Forward Characteristics - Per Leg 1000 800 600 Junction Capacitance - pF 400 Figure 3 Typical Junction Capacitance - Per Leg 100,000 60,000 40,000 20,000 10,000 6000 4000 2000 1000 0.1
200 175 C 25 C
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 175 165 155 145 135 125 115 105 60 0 30 90 120 60 180 90 120 DC 150
20
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 175 C
Average Forward Current - Amperes Figure 5 Maximum Forward Power Dissipation - Per Leg 105 90 75 60 45 30 15 0 0 30 60 90 120 150 Average Forward Current - Amperes 60 90 120 180 DC
Figure 2 Typical Reverse Characteristics - Per Leg 1000 Typical Reverse Current - mA 100
10 1.0 0.1
125 C
75 C 25 C 0 10 20 30 40 50
.01
Reverse Voltage - Volts
www.microsemi.com
January, 2010 - Rev. 4
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