UES705R Datasheet, PDF (1/3 Pages) Microsemi Corporation – ULTRAFAST RECTIFIERS, High Efficiency, 20A

SCOTTSDALE DIVISION
UES704 UES704HR2
UES705 UES705HR2
UES706 UES706HR2
ULTRAFAST RECTIFIERS,
High Efficiency, 20A^TM
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, I_O @ T_C = 100^oC………20 A
• Surge Current, 8.3 ms………………………………….300 A
• Thermal Resistance, Junction to Case…………….1.5^oC/W
• Operating and Storage Temp. Range…….-55^oC to +150^oC
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
V_RWM
Maximum
Forward
Voltage
V_F
@ 20 A
t_p = 300 µs
T_C =
25^oC
T_C = 125^oC
Maximum
Reverse
Current
I_R
@ V_RWM
T_C = 25^oC
T_C = 125^oC
UES704 UES704HR2
200 V
UES705 UES705HR2
300 V
1.25 V
1.15 V
UES706 UES706HR2
400 V
* Measured in circuit I_F = 0.5 A, I_R = 1 A, I_REC = 0.25 A
50 µA
10 mA
Maximum
Reverse Recovery
Time*
t_rr
50 ns
Copyright © 2002
2-3-2003 REV 0
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, [phone], Fax: [phone]
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