UES704 UES704HR2
UES705 UES705HR2
UES706 UES706HR2
ULTRAFAST RECTIFIERS,
High Efficiency, 20ATM
S C O T T S D A L E D I V I S I O N
APPEARANCE
DO-4
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
APPLICATIONS / BENEFITS
FEATURES
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Very Low Forward Voltage
Very Fast Recovery Times
Low Thermal Resistance
High Reliability Screening Option with HR2 Suffix (ie.
UES704HR2)
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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
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Extremely Robust in Power Cycling
High Surge Capability
Hermetically Sealed
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Mechanically rugged
Standard Polarity is Cathode to Stud. For Reverse
Polarity, Add Suffix R (ie. UES704R)
Marking: Part Number and Logo
ABSOLUTE MAXIMUM RATINGS
MECHANICAL AND PACKAGING
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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
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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
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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
Maximum
Maximum
Reverse Recovery
Time*
Maximum
Reverse
Current
Working
Peak
Reverse
Voltage
VRWM
Forward
Voltage
Microsemi Part Number
VF
@ 20 A
t
rr
IR
@ VRWM
tp = 300 ms
TC =
TC = 125oC
TC = 25oC
TC = 125oC
25oC
UES704HR2
UES705HR2
UES706HR2
200 V
300 V
400 V
UES704
UES705
UES706
50 mA
10 mA
1.25 V
1.15 V
50 ns
* Measured in circuit IF = 0.5 A, IR = 1 A, IREC = 0.25 A
Copyright ã 2002
2-3-2003 REV 0
Microsemi
Page 1
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503