121NQ datasheet(4/5 Pages) IRF

4 / 5 page

121NQ...(R) Series

Bulletin PD-2.249 rev. C 05/02

www.irf.com

Fig. 8 - Unclamped Inductive Test Circuit

Fig. 5 - Maximum Allowable Case Temperature

Vs. Average Forward Current

Fig. 6 - Forward Power Loss Characteristics

Fig. 7 - Maximum Non-Repetitive Surge Current

100

0 20 40 60 80 100 120 140 160 180

F(AV)

D=0.08

D=0.17

D=0.25

D=0.33

D=0.50

RMSLimit

AverageForwardCurrent-I

(A)

120

130

140

150

160

170

180

120

160

200

AverageForwardCurrent-I

(A)

F(AV)

121NQ

(DC)=0.40°C/W

thJC

FRE E-W H EEL

D IO D E

40H FL40S02

CUR RE N T

MO N ITO R

HIG H -SPE ED

SW IT C H

IRFP460

DUT

Rg = 2 5 oh m

Vd = 25 V olt

1000

10000

100000

100

1000

10000

At Any Rated Load Condition

And With Rated V

Applied

Following Surge

RRM

Square Wave Pulse Duration - t (microsec)

121NQ Datasheet(PDF) 4 Page - International Rectifier

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