Sensitive Two-Wire Chopper-Stabilized
Unipolar Hall Effect Switches
A1140, A1141,
A1142, and A1143
Package LH, 3-Pin; (SOT-23W)
3.00 .118
2.70 .106
0.15 [.006] M
C
A
B
3.04 .120
2.80 .110
A
1.49 .059
NOM
8º
0º
B
B
A
3
0.20 .008
0.08 .003
2.10 .083
1.85 .073
A
0.96 .038
NOM
Preliminary dimensions, for reference only
Dimensions in millimeters
U.S. Customary dimensions (in.) in brackets, for reference only
0.60 .024
0.25 .010
A
(reference JEDEC TO-236 AB, except case width and terminal tip-to-tip)
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
1
2
A
B
Hall element (not to scale)
0.25 .010
Active Area Depth 0.28 [.011]
C
3X
SEATING PLANE
GAUGE PLANE
SEATING
PLANE
0.10 [.004]
C
0.50 .020
0.30 .012
3X
1.17 .046
0.75 .030
0.20 [.008] M
C A B
0.15 .006
0.00 .000
0.95 .037
1.90 .075
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
12
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
