Datasheet

Schottky Barrier Rectifier
DST2080S, 20A, 80V, TO-277B, Single
DST2080S
RoHS
Pb
Description
Littelfuse DST series Ultra Low VF Schottky Barrier
Rectifier is designed to meet the general requirements
of commercial and industry applications by providing high
temperature, low leakage and lower VF products.
It is suitable for high frequency switching mode power
supply, free-wheeling diodes and polarity protection
diodes.
Features
Pin out
• Ultra low forward voltage
drop
• Guard ring for enhanced
ruggedness and long
term reliability
• High frequency operation
K
Cathode
Anode
Anode
• Single die in TO-277B
Package
• High junction
temperature capability
1
2
Applications
• S
witching mode power
supply
• Free-Wheeling diodes
• Polarity Protection Diodes
• DC/DC converters
Maximum Ratings
Parameters
Symbol
Peak Inverse Voltage
Test Conditions
Max
Unit
VRWM
-
80
V
Average Forward Current
(per device) *
IF(AV)
50% duty cycle @TA =85°C
rectangular wave form
20
A
Peak One Cycle Non-Repetitive Surge
Current (per leg)
IFSM
8.3 ms, half Sine pulse
150
A
* Mounted on 30 mm x 30 mm pad areas aluminum PCB
Electrical Characteristics
Parameters
Symbol
Max
Unit
@10A, Pulse, TJ = 25 °C
0.52
-
0.64
0.70
@10A, Pulse, TJ = 125 °C
0.46
-
@20A, Pulse, TJ = 125 °C
0.60
0.65
IR1
@VR = rated VR, TJ = 25 °C
22
300
μA
IR2
@VR = rated VR, TJ = 125 °C
11
75
mA
Forward Voltage Drop (per leg) *
VF2
* Pulse Width < 300μs, Duty Cycle <2%
Typ
@20A, Pulse, TJ = 25 °C
VF1
Reverse Current (per leg) *
Test Conditions
V
©2016 Littelfuse, Inc
Specifications are subject to change without notice.
Revised:02/03/16
Schottky Barrier Rectifier
DST2080S, 20A, 80V, TO-277B, Single
Thermal-Mechanical Specifications
Parameters
Symbol
Test Conditions
Max
Unit
Junction Temperature
TJ
-55 to +150
°C
Storage Temperature
Tstg
-55 to +150
°C
Typical Thermal Resistance
Junction to Ambient
RthJA
70
°C/W
Approximate Weight
wt
0.08
g
Case Style
DC operation
TO-277B
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
DST2080S, 20A, 80V, TO-277B, Single
Dimensions-TO-277B
D
Symbol
C
A
E
M
L
K
H
G
J
B
I
F
Millimeters
Min
Typ
Max
A
6.30
6.50
6.70
B
3.88
3.98
4.08
C
0.95
1.10
1.25
D
0.20
0.25
0.30
E
5.28
5.38
5.48
F
3.40
3.55
3.70
G
2.90
3.05
3.20
H
1.74
1.84
1.94
I
1.10
1.25
1.40
J
-
0.85
-
K
1.70
1.80
1.90
L
0.85
0.90
0.95
M
-
0.56
-
D
Part Numbering and Marking System
A
E
M
H
L
Packing Options
DST2080S
6
Part Number
B
Marking
Packing Mode
M.O.Q
DST2080S
DST2080S
5000pcs / Reel
5000
LF YYWWL
DST
20
80
S
LF
YY
WW
L
= Device Type
= Forward Current (20A)
= Reverse Voltage (80V)
= Package Type
= Littelfuse
= Year
= Week
= Lot Number
I
Carrier Tape & Reel Specification
Symbol
Millimeters
Min
Max
A
4.28
4.48
B
6.80
7.00
d
1.40
1.60
d1
-
1.50
E
1.65
1.85
F
7.40
7.60
P
7.90
8.10
P0
3.90
4.10
W
15.70
16.30
©2016 Littelfuse, Inc
Specifications are subject to change without notice.
Revised:02/03/16