Microsemi USD545, USD535, USD520 Datasheet
580 Pleasant St.
Watertown, MA 02472
PH: (617) 926-0404
FAX: (617) 924-1235
FeaturesFeatures::
• Very Low Forward Voltage (0.6V at 60A, 125°°C)
• Low Recovered Charge
• Rugged Package Design (DO-5)
• High Efficiency for Low Voltage Supplies
• Low Thermal Resistance (1.0°°C/W)
• High Surge Current (1000A)
• Low Reverse Current (<50mA at rated VR at 125°°C)
Description:Description:
This series of Schottky barrier power rectifiers is ideally suited for
output rectifiers and catch diodes in low voltage power supplies. The
Microsemi high conductivity design, using a heavy copper top post
and 4 point crimp, ensures cool thermal operation and low dynamic
impedance. Rugged design absorbs stress that can damage glassto-metal seal during installation and use.
USD520
USD535
USD545
150 Amp Pk,
Up to 45V
POWER SCHOTTKY
RECTIFIERS
DO-5
Absolute Maximum Ratings:
USD520 USD535 USD545
Working Peak Reverse Voltage, V
DC Blocking Voltage, V
Peak Repetitive Surge Voltage, V
Peak Repetitive Forward Current
(Rated VR1 Square Wave, 20KHz,
50 percent Duty Cycle), I
Average Rectified Forward Current, I
Non-repetitive Peak Surge Current (8.3mS), I
Peak Reverse Transient Current, I
Storage Temperature Range, T
Operating Junction Temperature, T
Thermal Resistance Junction-to-Case, Rθθ
R
FRM
STG
RWM
RSM
RM
j
@ I
F(AV)
RM
FSM
JC
Electrical Characteristics (TCASE = 25°C)
Characteristic Symbol Limit Units Conditions
USD545
Maximum Instantaneous
Reverse Current
Maximum Instantaneous
Forward Voltage
Maximum Capacitance
Maximum Voltage
Rate of Change
i
R
0.50
V
F
C
t
dv/dt 1000 V/µµS V
0.68
0.60
4000 pF
20V 35V 45V
20V 35V 45V
24V 42V 54V
150A (at TC = 115°°C)
75A (at TC = 115°°C)
1000A
2A
-55°° to +200°°C
+175°°C
1°°C/W
20
(50)
mA
V
V
V
VR =V
V
= 5.0V
R
= rated
R
RWM
(TC = 125°°C)
Pulse Width = 300µµs
Duty Cycle = 1 percent
i
= 10A, TC = 25°°C
F
i
= 60A, TC = 25°°C
F
i
= 60A, TC = 125°°C
F
MSC0999.PDF 02-02-99 DSWUSD520-45) <-> (35125)
MECHANICAL SPECIFICATIONS:
USD520
USD535
USD545
MSC0999.PDF 02-02-99 DSWUSD520-45) <-> (35125)
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