243NQ Datasheet, PDF (4/5 Pages) International Rectifier – SCHOTTKY RECTIFIER

243NQ...(R) Series
Bulletin PD-2.262 rev. B 05/02
180
170
243NQ
RthJC (DC) =0.20°C/W
160
150
DC
140
130
250
D = 0.08
D = 0.17
200 D=0.25
D = 0.33
D = 0.50
150
100 ^RMSLimit
DC
50
120
0 50 100 150 200 250 300 350
AverageForwardCurrent -IF(AV) (A)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
0
0 50 100 150 200 250 300 350
AverageForwardCurrent -IF(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
100000
At Any Rated Load Condition
And With
Following
Rated
Surge
V_RRM
Applied
10000
DUT
C URRE NT
M ONITOR
1000
10
100
1000
10000
Square Wave Pulse Duration - t_p (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
IR F P 46 0
Rg = 25 ohm
HIG H-SPEED
SW ITCH
FRE E -W H E E L
D IO D E
4 0H FL40 S02
+ ^{Vd = 25 Volt}
Fig. 8 - Unclamped Inductive Test Circuit
4
www.irf.com