OM4411ST/RT/DT
20 AMP ULTRA LOW FORWARD VOLTAGE
SCHOTTKY CENTER-TAP RECTIFIERS
20 Amp, 45 Volt Center-Tap Schottky
FEATURES
•
•
•
•
•
•
•
Small Size/JEDEC TO-257AA Package
Ultra Low Forward Voltage
Two Rectifiers Per Package
Rugged Package Design
High Efficiency For Low Voltage Supplies
Hermetic And Isolated Package
Available Screened To MIL-S-19500, TX, TXV And S Levels
DESCRIPTION
This series of Schottky barrier diodes offers ultra low forward voltage and high output
current for its small package size. The OM4411ST was designed for demanding
applications where small size, light weight and high reliability are required. These
devices are ideal replacements for TO-3, DO-4 or DO-5 packages. All products are
available Hi-Rel screened.
Peak Inverse Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 V
Maximum Average DC Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 A
Non-Repetitive Peak Surge Current (8.3 mS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 A
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55° C to + 175° C
Junction Operating Temperature Range. . . . . . . . . . . . . . . . . . . . . . . - 55° C to + 150° C
Package Thermal Resistance, Junction-to-Case . . . . . . . . . . . . . . . . . . . . . . . . 2.0° C/W
SCHEMATIC
1
2
COMMON
ANODE
1
OMXXXXDT
ABSOLUTE MAXIMUM RATINGS
(Per Diode) T
C
= 25°C
3.2
CONNECTION DIAGRAM
2
COMMON
CATHODE
OMXXXXST
1
3
OMXXXXRT
3
3
DOUBLER
2
1
2
3
Common cathode is standard. Contact factory for performance
characteristics for common anode and doubler.
Z-Tab package also available.
4 11 R2
Supersedes 1 07 R1
3.2 - 31
OM4411ST/RT/DT
ELECTRICAL CHARACTERISTICS
(Per Diode)
Characteristic
Maximum Instantaneous Forward Voltage*
I
F
= 10 A, T
C
= 100°C
I
F
= 10 A, T
C
= 25°C
Maximum Instantaneous Reverse Current*
Rated dc Voltage, T
C
= 125°C
Rated dc Voltage, T
C
= 25°C
Capacitance
V
R
= 5.0V, T
C
= 25°C
* Pulse Test:
Pulse Width = 300 µs, Duty Cycle 2.0%
Symbol
V
F
0.575
0.625
i
R
50
1.0
C
t
800
pf
mA
Max.
Unit
Volts
TYPICAL FORWARD VOLTAGE
100
50
50
TYPICAL REVERSE CURRENT
T
J
= 150°C
I
R
= REVERSE CURRENT (mA)
10
125°C
1.0
100°C
I
F
- INSTANTANEIOUS FORWARD
CURRENT (AMPS)
20
20
10
10
150°C
5
3
3
100°C
175°C
1
1
0.5
0.5
T
J
= 25°C
0.1
75°C
0.01
25°C
0.001
0
0
0.1
0.1
0.2
0.2
0.3
0.6
0.3
0.4
0.4
0.5
0.5
0.7
0.6
0.8
0.7
0.9
0.8
1
0.9
1
V
F
- INSTANTANEOUS VOLTAGE (VOLTS)
0
10
20
30
V
R
-REVERSE VOLTAGE (VOLTS)
40
50
MECHANICAL OUTLINE
.200
.190
.045
.035
.665
.645
.537
.527
.430
.410
.038 MAX.
3.2
.150
.140
.420
.410
.750
.500
.005
.035
.025
.100 TYP.
.120 TYP.
JEDEC TO-257AA
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
嵌入式系统
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