FST8420SL
THRU
FST8445SL
80 Amp
Rectifier
20 to 45 Volts
Features
Operating Temperature: -
40
C to +1
75
C
Storage Temperature: -
40
C to +150
C
MCC
Part Number
Maximum
Recurrent
Peak Reverse
Voltage
Maximum
RMS Voltage
Maximum DC
Blocking
Voltage
FST8
420SL 20V 14V 20V
FST8
430SL 30V 21V 30V
FST8
435SL 35V 24.5V 35V
FST8
440SL 40V 28V 40V
FST8
445SL 45V 31.5V 45V
Electrical Characteristics @ 25
C Unless Otherwise Specified
Average Forward
Current
I
F(AV)
80 A T
C
=
110
C
Peak Forward Surge
Current
I
FSM
800A 8.3ms, half sine
Maximum
Instantaneous
Forward Voltage
Maximum DC
Reverse Current At
Rated DC Blocking
Voltage
I
R
3.0
mA T
J
= 25
C
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mccsemi
.com
Schottky Barrier
Maximum Ratings
Metal of siliconrectifier, majonty carrier conducton
Guard ring for transient protection
Low power loss high efficiency
High surge capacity, High current capability
FST
8420SL-8445SL
.63 V
MINIMOD-SL
B .110 .120 2.79 3.04
A 1.490 1.510 37.85 38.35
C
.027 .037 0.69 0.94
E .350 .370 8.89 9.40
F .015 .025 0.38 0.64
G .695 .715 17.65 18.16
H .088 .098 2.24 2.49
K 1.180 1.195 29.97 30.35
M
.065 .085 1.65 2.16
N
.151 .161 3.84 4.09
L .230 .250 5.84 6.35
J .240 .260 6.10 6.60
I
FM
= 40.0A;
T
J
= 25
C
V
F
500
mA
T
J
= 1
25
C
1
2
3
K
E
F
P
G
H
C
A
N
M
J
B
*Pul se Test: Pulse Width 300
sec, Duty Cycle
2%
Typical Junction
Capacitance
C
J
2100pF Measured at
1.0MHz, V
R
=
5.0V
MM
INCHES
NOTE
DIM
DIMENSIONS
MIN
MAX
MIN
MAX
L
P
.200 REF 5.08 REF
omponents
21201 Itasca Street Chatsworth
!"#
$
% !"#
M C C
Junction Capacitance - pF versus
Reverse Voltage - Volts
Instantaneous Forward Current - Amperes versus
Instantaneous Forward Voltage - Volts
Figure 1
Typical Forward Characteristics
40
60
200
100
Amps
0 0.2 0.4 0.6 0.8 1.0 1.2
.1
.2
.4
.6
1
2
4
6
10
20
25
C
Volts
Figure 3
Junction Capacitance
.1
.2
1
.4
2
10
20
40
4
100 200
1
00
2
00
6
00
10
00
200
0
1000
0
pF
Volts
600
0
400
0
4
00
400
1000
T
J
=25
C
FST8
420SL thru FST8445SL
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mccsemi
.com
M C C
Average Forward Rectified Current - Amperes versus
Case Temperature -
C
Figure 2
Forward Derating Curve
0 150
50 7
0 90 110
0
20
40
60
Single Phase, Half Wave
60Hz Resistive or Inductive Load
Amps
C
1
30
80
100
120
FST8420SL-45SL
FST8
420SL thru FST8445SL
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mccsemi
.com
M C C
Instantaneous Reverse Leakage Current - MicroAmperes versus
Percent Of Rated Peak Reverse Voltage - Volts
Figure 4
Typical Reverse Characteristics
Volts
40
60
200
100
mAmps
10 100
20 40 60 80
.1
.2
.4
.6
1.1
1.2
1.3
1.4
1
.5
20
T
J
=
25
C
400
600
1000
120
T
J
=
125
C
1
100
4
0
100
200
4
00
8
Figure
5
Peak Forward Surge Current
Peak Forward Surge Current - Amperes versus
Number Of Cycles At 60Hz - Cycles
Amps
Cycles
2
6
10 20
60 80
40
600
800
1000
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