UH20FCT datasheet(2/5 Pages) VISHAY

Part #	UH20FCT

Description	Dual Common-Cathode Ultrafast Recovery Rectifier

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Manufacturer	VISHAY [Vishay Siliconix]

Direct Link	http://www.vishay.com

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New Product

UH20FCT& UHB20FCT

Vishay General Semiconductor

www.vishay.com

For technical questions within your region, please contact one of the following:

PDD-Americas@vishay.com, PDD-Asia@vishay.com, PDD-Europe@vishay.com

Document Number: 88964

Revision: 13-May-08

2

Notes:

(1) Pulse test: 300 µs pulse width, 1 % duty cycle

(2) Pulse test: Pulse width

≤ 40 ms

RATINGS AND CHARACTERISTICS CURVES

(TA = 25 °C unless otherwise noted)

Maximum reverse current per diode (2)

VR = 300 V

TJ = 25 °C

TJ = 125 °C

IR

0.5

25

5

150

µA

Maximum reverse recovery time

IF = 0.5 A, IR = 1.0 A,

Irr = 0.25 A

trr

20

25

ns

Maximum reverse recovery time per diode

IF = 1.0 A, dI/dt = 50 A/µs,

VR = 30 V, Irr = 0.1 IRM

trr

28

35

ns

Typical softness factor (tb/ta)

IF = 10 A, dI/dt = 200 A/µs,

VR = 200 V, TJ = 125 °C

per diode

S0.36

-

Typical reverse recovery current

IRM

7.0

-

A

Typical stored charge

Qrr

160

-

nC

Typical forward recovery time per diode

IF = 10 A, dI/dt = 80 A/µs,

VFR = 1.1 x VF max.

tfr

150

-

ns

ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)

PARAMETER

TEST CONDITIONS

SYMBOL

TYP.

MAX.

UNIT

THERMAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)

PARAMETER

SYMBOL

UH20FCT

UHB20FCT

UNIT

Typical thermal resistance per diode

RθJC

2.0

°C/W

ORDERING INFORMATION

PACKAGE

PREFERRED P/N

UNIT WEIGHT (g)

PACKAGE CODE

BASE QUANTITY

DELIVERY MODE

TO-220AB

UH20FCT-E3/4W

1.88

4W

50/tube

Tube

TO-263AB

UHB20FCT-E3/4W

1.38

4W

50/tube

Tube

TO-263AB

UHB20FCT-E3/8W

1.38

8W

800/reel

Tape and reel

Figure 1. Maximum Forward Current Derating Curve

0

25

50

75

100

125

150

175

0

4

8

12

16

20

24

Case Temperature (°C)

Figure 2. Forward Power Loss Characteristics Per Diode

0

1

2

3

4

5

6

7

8

9

10

11

12

0246

8

10

12

Average Forward Current (A)

D = 0.3

D = 0.5

D = 0.8

D = 1.0

D = 0.2

D = 0.1

D = t

p/T

t

p

T

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