Micropower, Ultrasensitive
Hall-Effect Switches
A3211 and
A3212
11
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
A
B
C
D
C
For Reference Only – Not for Tooling Use
(Reference DWG-2840)
Dimensions in millimeters–NOTTO SCALE
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
Reference land pattern layout; all pads a minimum of 0.20 mm from all adjacent pads;
adjust as necessary to meet application process requirements and PCB layout tolerances
Active Area Depth, 0.28 mm
Hall elements, not to scale
= Last three digits of device part numberN
Standard Branding Reference View
NNN
Branding scale and appearance at supplier discretion
Seating Plane
Gauge Plane
PCB Layout Reference View
0.55 REF
0.25 BSC
0.95 BSC
0.95
1.00
0.70
2.40
2
1
B
A
Branded Face
+0.10
–0.20
4° ±4°
REF
0.180
+0.020
–0.053
0.05
+0.10
–0.05
0.25 MIN
1.91
+0.19
–0.06
2.98
+0.12
–0.08
1.00 ±0.13
0.40 ±0.10
D
D
D
1.49
0.96
3
Package LH, 3-Pin SOT-23W
