USD520 Datasheet, PDF (1/3 Pages) Microsemi Corporation – POWER SCHOTTKY RECTIFIERS

580 Pleasant St.
Watertown, MA 02472
PH: [phone]
FAX: [phone]
Features:
• 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 V_R at 125°C)
USD520
USD535
USD545
150 Amp Pk,
Up to 45V
POWER SCHOTTKY
RECTIFIERS
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 glass-
to-metal seal during installation and use.
Absolute Maximum Ratings:
Working Peak Reverse Voltage, V_RWM
DC Blocking Voltage, V_R
Peak Repetitive Surge Voltage, V_RSM @ I_RM
Peak Repetitive Forward Current
(Rated V_R1 Square Wave, 20KHz,
50 percent Duty Cycle), I_FRM
Average Rectified Forward Current, I_F(AV)
Non-repetitive Peak Surge Current (8.3mS), I_FSM
Peak Reverse Transient Current, I_RM
Storage Temperature Range, T_STG
Operating Junction Temperature, T_j
Thermal Resistance Junction-to-Case, Rθ _JC
Electrical Characteristics (TCASE = 25°C)
Characteristic
Symbol
USD520
20V
20V
24V
USD535
35V
35V
42V
150A (at T_C = 115° C)
75A (at T_C = 115° C)
1000A
2A
-55° to +200° C
+175° C
1° C/W
Limit
USD545
Units
Maximum Instantaneous
Reverse Current
i_R
20
mA
(50)
Maximum Instantaneous
Forward Voltage
Maximum Capacitance
Maximum Voltage
Rate of Change
V_F
C_t
dv/dt
0.50
0.68
0.60
4000
1000
V
V
V
pF
V/µ S
DO-5
USD545
45V
45V
54V
Conditions
V_R =V_RWM
(T_C = 125° C)
Pulse Width = 300µ s
Duty Cycle = 1 percent
i_F = 10A, T_C = 25°C
i_F = 60A, T_C = 25°C
i_F = 60A, T_C = 125°C
V_R = 5.0V
V_R = rated
MSC0999.PDF 02-02-99
DSWUSD520-45) <-> (35125)