ULTRAFAST RECTIFIERS,

High Efficiency, 20A

TM

Microsemi

Scottsdale Division

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Page 1

Copyright

© 2002

2-3-2003 REV 0

SCOTTSDALE DIVISION

UES704 UES704HR2

UES705 UES705HR2

UES706 UES706HR2

DESCRIPTION

APPEARANCE

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

case applications. The switching times increase relatively little with

temperature or at different currents.

DO-4

FEATURES

APPLICATIONS / BENEFITS

• 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)

•

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

MECHANICAL AND PACKAGING

•

Peak Inverse Voltage, UES704, UES704HR2……….200 V

•

Peak Inverse Voltage, UES705, UES705HR2……….300 V

•

Peak Inverse Voltage, UES706, UES706HR2……….400 V

•

•

Surge Current, 8.3 ms………………………………….300 A

•

Thermal Resistance, Junction to Case…………….1.5

•

Operating and Storage Temp. Range…….-55

•

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

Maximum

Forward

Voltage

@ 20 A

µs

Maximum

Reverse

Current

Maximum

Reverse Recovery

Time*

25

UES704

UES705

UES706

UES704HR2

UES705HR2

UES706HR2

200 V

300 V

400 V

1.25 V

1.15 V

50

µA

10 mA

50 ns