Schottky Barrier Rectifier
DSTF40120C, 2x20A, 120V, ITO-220AB, Common Cathode
DSTF40120C
Description
RoHS
Pb
Littelfuse DST series Ultra Low V
F
Schottky Barrier
Rectifier is designed to meet the general requirements
of commercial and industry applications by providing high
temperature, low leakage and lower V
F
products.
It is suitable for high frequency switching mode power
supply, free-wheeling diodes and polarity protection
diodes.
Features
• Ultra low forward voltage
drop
• High frequency operation
• High junction
temperature capability
Applications
• Switching mode power
supply
• DC/DC converters
Pinout 3
ITO-220AB
Common Cathode
Symbol
V
RWM
I
F(AV)
I
FSM
Test Conditions
-
50% duty cycle @T
C
=74°C
rectangular wave form
8.3 ms, half Sine pulse
Max
120
20 (per leg)
40 (total device)
250
Unit
V
A
A
Common
Cathode
Pin out
Heat sink
Common
Cathode
ink
• Guard ring for enhanced
ruggedness and long
term reliability
• Common cathode
configuration in ITO-
220AB package
Anode
3
1
D-PAK
athode
Anode Common Anode
Cathode
1
2
3
Anode Common Anode
Cathode
1
2
3
• Free-Wheeling diodes
• Polarity Protection Diodes
Pinout 2
TO-220AB
Common Cathode
Maximum Ratings
Parameters
Peak Inverse Voltage
Heat sink
Average Forward Current
Peak One Cycle Non-Repetitive Surge
Current (per leg)
Cathode
Anode
Cathode
ommon
Cathode
node
3
4
0AB
Anode
1
2
Electrical Characteristics
Pinout 5
TO-220AC
Parameters
Symbol
V
F1
Forward Voltage Drop (per leg) *
V
F2
I
R1
I
R2
C
T
Test Conditions
@5A, Pulse, T
J
= 25 °C
@10A, Pulse, T
J
= 25 °C
@20A, Pulse, T
J
= 25 °C
@5A, Pulse, T
J
= 125 °C
@10A, Pulse, T
J
= 125 °C
@20A, Pulse, T
J
= 125 °C
Reverse Current (per leg) *
Junction Capacitance (per leg)
*
Pulse Width < 300μs, Duty Cycle <2%
@V
R
= rated V
R
T
J
= 25 °C
@V
R
= rated V
R
T
J
= 125 °C
@V
R
= 5V, T
C
= 25 °C,
fSI
G = 1MHz
Typ
0.50
0.64
0.87
0.46
0.57
0.68
33
6
608
Max
-
-
0.97
-
-
0.76
500
45
-
μA
mA
pF
V
Unit
©2016 Littelfuse, Inc
Specifications are subject to change without notice.
Revised:02/03/16
Schottky Barrier Rectifier
DSTF40120C, 2x20A, 120V, ITO-220AB, Common Cathode
Thermal-Mechanical Specifications
Parameters
Junction Temperature
Storage Temperature
Thermal Resistance Junction to
Case (per leg)
Approximate Weight
Case Style
Symbol
T
J
T
stg
R
thJC
wt
ITO-220AB
DC operation
Test Conditions
Max
-55 to +150
-55 to +150
4.0
2
Unit
°C
°C
°C/W
g
Figure 1: Typical Forward Characteristics
Figure 2: Typical Reverse Characteristics
ºC
ºC
ºC
ºC
Figure 3: Typical Junction Capacitance
ºC
©2016 Littelfuse, Inc
Specifications are subject to change without notice.
Revised:02/03/16
Schottky Barrier Rectifier
DSTF40120C, 2x20A, 120V, ITO-220AB, Common Cathode
Dimensions- ITO-220AB
Symbol
A
A1
A2
A3
b
b1
b2
b3
b4
c
D
E
e
e1
H1
L
L1
L2
L3
6.50
12.70
1.60
0.80
0.60
3.30
2.99
2.50
Millimeters
Min
4.30
1.10
2.80
2.50
0.50
1.10
1.50
1.20
1.60
0.55
14.80
9.96
Typ
4.50
1.30
3.00
2.70
0.60
1.20
1.60
1.30
1.70
0.60
15.00
10.16
2.55
5.10
6.70
13.20
1.80
1.00
0.80
3.50
3.19
2.70
5°
4°
10°
5°
5°
6.90
13.70
2.00
1.20
1.00
3.70
3.39
2.90
Max
4.70
1.50
3.20
2.90
0.75
1.35
1.75
1.45
1.85
0.75
15.20
10.36
ø
P1
ø
P2
Q
θ
1
θ
2
θ
3
θ
4
θ
5
Packing Options
Part Number
DSTF40120C
Marking
DSTF40120C
Packing Mode
50pcs / Tube
M.O.Q
1000
DSTF40120C
6
Part Numbering and Marking System
Tube Specification
LF YYWWL
DST
F
40
120
C
LF
YY
WW
L
= Device Type
= Package type
= Forward Current (40A)
= Reverse Voltage (120V)
= Configuration
= Littelfuse
= Year
= Week
= Lot Number
©2016 Littelfuse, Inc
Specifications are subject to change without notice.
Revised:02/03/16
Analog electronics
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