249NQ135 datasheet(4/5 Pages) IRF

номер детали	249NQ135

подробное описание детали	SCHOTTKY RECTIFIER

PDF	5 Pages

Scroll/Zoom	100%

производитель	IRF [International Rectifier]

домашняя страница	http://www.irf.com

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4 / 5 page

249NQ...(R) Series

Bulletin PD-20721 rev. A 06/02

www.irf.com

Fig. 5 - Max. Allowable Case Temperature

Vs. Average Forward Current

Fig. 8 - Unclamped Inductive Test Circuit

FR EE-W H E EL

D IO D E

40H FL40 S02

CUR RE N T

MO N ITO R

HIG H-SPE ED

SW ITC H

IRFP460

DUT

Rg = 25 ohm

Vd = 25 V olt

(2) Formula used: T

C = TJ - (Pd + PdREV) x RthJC ;

Pd = Forward Power Loss = I

F(AV) x VFM @ (IF(AV) / D) (see Fig. 6);

REV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = rated VR

Average Forward Current - IF

(AV) (A)

Average Forward Current - IF

(AV) (A)

Square Wave Pulse Duration - t

p (microsec)

Fig. 7 - Max. Non-Repetitive Surge Current

120

160

200

240

280

100

200

300

400

RMS Limit

D = 0.20

D = 0.25

D = 0.33

D = 0.50

D = 0.75

1000

10000

100000

100

1000

10000

At Any Rated Load Condition

And With Rated V

Applied

Following Surge

RRM

Fig. 6 - Forward Power Loss

Characteristics

100

120

140

160

180

100

200

300

400

see note (2)

Square wave (D = 0.50)

Rated V applied

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