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IRF840AS/AL
Power MOSFET VDSS = 500V, RDS(on) = 0.85 ohm, ID = 8.0 A
Mechanical Dimensions
Case SMB 220 Plastic
DIMENSIONS
Millimetres
Inches
Dim Min Max Min Max
a 9.85 10.67 0.380 0.420
b 14.61 15.88 0.575 0.625
c 1.65 0.065
d 8.51 9.65 0.335 0.380
e 1.27 1.78 0.050 0.070
f 4.08 4.83 0.180 0.190
g 1.14 1.40 0.045 0.055
h 1.15 1.400 0.045 0.055
j 1.78 2.79 0.070 0.110
k 0.38 0.77 0.015 0.029
m 2.54 Pitch
0.10 Pitch
n 0.51 0.99 0.020 0.038
p 0.51 0.89 0.020 0.35
a c
4
d b
1 23
m n
p
e
f g
1 - Gate 2 & 4 - Drain 3 - Source
kj
Mechanical Dimensions
Case TO262 Plastic
DIMENSIONS
Millimetres
Inches
Dim Min Max Min Max
a 10.29 10.54 0.405 0.415
b 9.91 10.54 0.390 0.415
c 13.47 14.09 0.530 0.555
d 1.15
0.045
e 1.15 1.40 0.045 0.055
f 0.69 0.93 0.027 0.037 g 2.
IRF840AS Datasheet
