Microsemi FST8145SMD Schottky power surface mount Datasheet

Schottky Power Surface Mount
FST81SM1-SM6 Series
A1
K
F
1
2
Minimum Maximum Minimum Maximum Notes
1
E
3
2
3
1
2
3
Common Cathode
L
M
SM3 & SM4
3 PINS eq sp at .200
G
A3
J
C
SM1 & SM2
B
D
H
B
D
Millimeter
Dim. Inches
A2
N
2-PLCS.
1
2
1
2
3
A=Common Anode
3
SM5 & SM6
TYP. PIN CONFIGURATION
TYP. PIN CONFIGURATION
FOR SM1, SM3, & SM5
FOR SM2, SM4, & SM6
1
2
3
D=Doubler
A1
A2
A3
B
C
D
E
F
G
H
1.490
1.020
.695
.110
.027
.100
.350
.015
.695
.088
1.510
1.040
.715
.120
.037
.110
.370
.025
.715
.098
37.85
26.12
17.65
2.79
0.69
2.54
8.89
0.38
17.65
2.24
38.35
26.42
18.16
3.04
0.94
2.79
9.40
0.64
18.16
2.49
J
K
L
M
N
.240
1.180
.230
.065
.151
.260
1.195
.250
.085
.161
6.10
29.97
5.84
1.65
3.84
6.60
30.35
6.35
2.16
4.09
Dia.
Note: Baseplate Common with Pin 2
Microsemi Catalog
Catalog Number
1 2
FST8135SM _ _
FST8140SM _ _
FST8145SM _ _
Industry
Part Number
Working Peak
Reverse Voltage
Repetitive Peak
Reverse Voltage
80CNQ035ASL
80CNQ035ASM
80CNQ040ASL
80CNQ040ASM
80CNQ045ASL
80CNQ045ASM
35V
35V
40V
40V
45V
45V
Note: 1 Specify (1-6) to identify package desired
Schottky Barrier Rectifier
Guard Ring Protection
Common Cathode
Center Tap
Low Forward Voltage
2 X 40 Amperes Avg.
150°C Junction Temperature
Reverse Energy Tested
ROHS Compliant
2 Specify C-Common Cathode, A-Common Anode, D-Doubler
Electrical Characteristics
Average forward current per pkg
Average forward current per leg
Maximum surge current per leg
Max repetitive peak reverse current per leg
Max peak forward voltage per leg
Max peak forward voltage per leg
Max peak reverse current per leg
Max peak reverse current per leg
Typical junction capacitance per leg
I F(AV) 80 Amps
I F(AV) 40 Amps
I FSM 800 Amps
I R(OV) 2 Amps
VFM 0.47 volts
VFM 0.53 volts
I RM 500 mA
I RM 3.0 mA
CJ 2100 pF
TC = 110°C, Square wave, R 0JC = 0.5°C/W
TC = 110°C, Square wave, R 0JC = 1.0°C/W
8.3 ms, half sine, T J = 150°C
f = 1 KHZ, 25°C, 1µsec square wave
I FM = 40A: T J = 150°C*
I FM = 40A: T J = 25°C*
VRRM, T C = 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 OJC
R OJC
R OCS
-55°C to 175°C
-55°C to 150°C
1.0°C/W
Junction to case
Junction to case
0.5°C/W
Case to sink
0.3°C/W
10 inch pounds maximum (SM1, 2)
SM1-2 0.3 ounce (8.4 grams) typical
SM3-4 0.24 ounce (6.7 grams) typical
SM5-6 0.18 ounce (5.2 grams) typical
www.microsemi.com
January, 2010 - Rev. 4
FST81SM1 - SM6
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
50
100
130
120
110
100
90
0
Maximum Power Dissipation - Watts
125 C
75 C
1.0
25 C
.01
10
20
Reverse Voltage - Volts
30
0.5
10
15
20
25
120
30
35
180
40
DC
45
50
Figure 5
Maximum Forward Power Dissipation - Per Leg
150 C
0
90
60
80
Average Forward Current - Amperes
1000
Typical Reverse Current - Amperes
10
140
1.4
Figure 2
Typical Reverse Characteristics - Per Leg
0.1
5.0
150
Instantaneous Forward Voltage - Volts
10
1.0
Figure 4
Forward Current Derating - Per Leg
Maximum Allowable Case Temperature - C
Instantaneous Forward Current - Amperes
40
100
0.5
Reverse Voltage - Volts
40
50
35
30
DC
180
25
60
20
90
120
15
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
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