3.2 - 31
3.2
4 11 R2
Supersedes 1 07 R1
20 AMP ULTRA LOW FORWARD VOLTAGE
SCHOTTKY CENTER-TAP RECTIFIERS
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.
ABSOLUTE MAXIMUM RATINGS
(Per Diode) T
C
= 25C
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
OM4411ST/RT/DT
20 Amp, 45 Volt Center-Tap Schottky
COMMON
ANODE
COMMON
CATHODE
DOUBLER
1
3
2
1
3
2
1
2
3
SCHEMATIC
CONNECTION DIAGRAM
1
2
3
Common cathode is standard. Contact factory for performance
characteristics for common anode and doubler.
Z-Tab package also available.
OMXXXXRT
OMXXXXDT
OMXXXXST
OM4411ST/RT/DT
3.2
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
100
10
1.0
0.1
0.01
0.001
0
10
20
30
40
50
T
J
= 150C
25C
125C
75C
100C
.430
.410
.200
.190
.038 MAX.
.005
.120 TYP.
.537
.527
.665
.645
.420
.410
.150
.140
.750
.500
.100 TYP.
.035
.025
.045
.035
JEDEC TO-257AA
MECHANICAL OUTLINE
I
R
= REVERSE CURRENT (mA)
50
20
10
5
3
1
0.5
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
TYPICAL FORWARD VOLTAGE
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
V
F
- INSTANTANEOUS VOLTAGE (VOLTS)
I
F
- INSTANTANEIOUS FORWARD
CURRENT (AMPS)
100C
50
20
10
5
0.5
1
3
175C
150C
T
J
= 25C
TYPICAL REVERSE CURRENT
V
R
-REVERSE VOLTAGE (VOLTS)
ELECTRICAL CHARACTERISTICS
(Per Diode)
Characteristic
Symbol
Max.
Unit
Maximum Instantaneous Forward Voltage*
V
F
Volts
I
F
= 10 A, T
C
= 100C
0.575
I
F
= 10 A, T
C
= 25C
0.625
Maximum Instantaneous Reverse Current*
i
R
mA
Rated dc Voltage, T
C
= 125C
50
Rated dc Voltage, T
C
= 25C
1.0
Capacitance
V
R
= 5.0V, T
C
= 25C
C
t
800
pf
* Pulse Test:
Pulse Width = 300 s, Duty Cycle 2.0%
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