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PDF UES704HR2 Data sheet ( Hoja de datos )

Número de pieza UES704HR2
Descripción ULTRAFAST RECTIFIERS
Fabricantes Microsemi 
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SCOTTSDALE DIVISION
UES704 UES704HR2
UES705 UES705HR2
UES706 UES706HR2
ULTRAFAST RECTIFIERS,
High Efficiency, 20ATM
DESCRIPTION
The UES704 series of ultrafast high-efficiency rectifiers is specifically
designed for operation in power switching circuits operating at frequencies
of 20 kHz or higher. The low thermal resistance and forward voltage drop
of this series allows the user to replace DO-5 size devices in many
applications. These devices have also been demonstrated capability in
passing power-stress testing to 25 thousand cycles with full-rated forward
current turned on and off without a heat sink. This forces case temperature
increases of 75 °C at which time the current is removed to simulate worst
case applications. The switching times increase relatively little with
temperature or at different currents.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
APPEARANCE
DO-4
FEATURES
Very Low Forward Voltage
Very Fast Recovery Times
Low Thermal Resistance
High Reliability Screening Option with HR2 Suffix (ie.
UES704HR2)
Mechanically rugged
Standard Polarity is Cathode to Stud. For Reverse
Polarity, Add Suffix R (ie. UES704R)
APPLICATIONS / BENEFITS
Power Switching Circuits 20 kHz and above with
minimal parasitic switching losses
Catch Diodes for Switching Regulators
Output Rectifiers for High Frequency Square-Wave
Inverters
Extremely Robust in Power Cycling
High Surge Capability
Hermetically Sealed
Marking: Part Number and Logo
ABSOLUTE MAXIMUM RATINGS
Peak Inverse Voltage, UES704, UES704HR2……….200 V
Peak Inverse Voltage, UES705, UES705HR2……….300 V
Peak Inverse Voltage, UES706, UES706HR2……….400 V
Average DC Output Current, IO @ TC = 100oC………20 A
Surge Current, 8.3 ms………………………………….300 A
Thermal Resistance, Junction to Case…………….1.5oC/W
Operating and Storage Temp. Range…….-55oC to +150oC
MECHANICAL AND PACKAGING
Industry Standard DO-4 (DO-203AA) Package with
7/16 inch Hex and 10-32 Threaded Stud
Hermetically Sealed Metal and Glass Case Body
Metal Surface Finish: Tin Plated
Weight: 10 grams (approximate)
Maximum unlubricated stud Torque: 15 inch pounds
Angular Orientation of Terminal is Undefined
Marking: Part Number
ELECTRICAL CHARACTERISTICS @ 25°C unless otherwise stated
Microsemi Part Number
Working
Peak
Reverse
Voltage
VRWM
Maximum
Forward
Voltage
VF
@ 20 A
tp = 300 µs
TC =
25oC
TC = 125oC
Maximum
Reverse
Current
IR
@ VRWM
TC = 25oC
TC = 125oC
UES704 UES704HR2
200 V
UES705 UES705HR2
300 V
1.25 V
1.15 V
UES706 UES706HR2
400 V
* Measured in circuit IF = 0.5 A, IR = 1 A, IREC = 0.25 A
50 µA
10 mA
Maximum
Reverse Recovery
Time*
trr
50 ns
Copyright © 2002
2-3-2003 REV 0
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
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