T4-LDS-0224, Rev. 2 (111556)

©2011 Microsemi Corporation

Page 1 of 6

UES701 – 703 & UES701HR2 – 703HR2

Available on

commercial

versions

ULTRAFAST RECTIFIERS,

High Efficiency 25A and 30A

High-Reliability

screening available

DESCRIPTION

The UES701(HR2) through UES703(HR2) 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 larger DO-5 packaged devices in many applications. Microsemi also offers

numerous other products to meet higher and lower power voltage regulation applications.

DO-4 Package

Important: For the latest information, visit our website http://www.microsemi.com.

FEATURES

•

Very low forward voltage (0.825 V @ IF = 25 A).

•

Very fast recovery times (35-50 ns).

•

Low thermal resistance.

•

High reliability screening option.

•

Mechanically rugged.

•

Both polarities available.

•

RoHS compliant devices available by adding “e3” suffix (commercial grade only).

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.

MAXIMUM RATINGS

MSC – Lawrence

6 Lake Street,

Lawrence, MA 01841

Tel: 1-800-446-1158

(978) 620-2600

Fax: (978) 689-0803

MSC – Ireland

Gort Road Business Park,

Ennis, Co. Clare, Ireland

Tel: +353 (0) 65 6840044

Fax: +353 (0) 65 6822298

Website:

www.microsemi.com

Parameters/Test Conditions

Symbol

Value

Unit

Junction and Storage Temperature

TJ and TSTG

-55 to +175

oC

Thermal Resistance Junction-to-Case

RӨJC

1.5

oC/W

Working Peak Reverse Voltage

UES701

UES702

UES703

V RWM

50

100

150

V

Repetitive Peak Reverse Voltage

UES701

UES702

UES703

V RRM

50

100

150

V

RMS Forward Current

IF(RMS)

40

Amps

Non-Repetitive Sinusoidal Surge Current (8.3 ms)

IFSM

400

Amps

Maximum Average DC Output Current @ TC 100 ºC

IO

25

Amps