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FST81SM1_10 Datasheet, PDF (1/2 Pages) Microsemi Corporation – Schottky Power Surface Mount
Schottky Power Surface Mount
FST81SM1-SM6 Series
A1
K
N
A2
2-PLCS.
F
1
2
3
M
3 PINS eq sp at .200
E
L
1
2
3
1 23
Common Cathode
SM3 & SM4
G
J
C
H
SM1 & SM2
A3
1
2
3
1 23
A=Common Anode
B
B
D
D
SM5 & SM6
TYP. PIN CONFIGURATION TYP. PIN CONFIGURATION
1 23
D=Doubler
FOR SM1, SM3, & SM5
FOR SM2, SM4, & SM6
Note: Baseplate Common with Pin 2
Dim. Inches
Millimeter
Minimum Maximum Minimum Maximum Notes
A1 1.490
A2 1.020
A3 .695
B .110
C .027
D .100
E .350
F .015
G .695
H .088
J .240
K 1.180
L .230
M .065
N .151
1.510
1.040
.715
.120
.037
.110
.370
.025
.715
.098
.260
1.195
.250
.085
.161
37.85
26.12
17.65
2.79
0.69
2.54
8.89
0.38
17.65
2.24
6.10
29.97
5.84
1.65
3.84
38.35
26.42
18.16
3.04
0.94
2.79
9.40
0.64
18.16
2.49
6.60
30.35
6.35
2.16
4.09
Dia.
Microsemi Catalog
Catalog Number
FST8135SM 1_ 2_
FST8140SM _ _
FST8145SM _ _
Industry
Working Peak Repetitive Peak
Part Number Reverse Voltage Reverse Voltage
80CNQ035ASL
80CNQ035ASM
80CNQ040ASL
80CNQ040ASM
80CNQ045ASL
80CNQ045ASM
35V
40V
45V
35V
40V
45V
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
Note: 1 Specify (1-6) to identify package desired
2 Specify C-Common Cathode, A-Common Anode, D-Doubler
ROHS Compliant
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
0.5°C/W Junction to case
0.3°C/W Case to sink
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