A3211
and
A3212
MICROPOWER, ULTRA-SENSITIVE
HALL-EFFECT SWITCHES
Datasheet Addendum
This addendum details the packing specifications for the EL package
(2 mm × 2 mm footprint) to the information offered in the main datasheet for
these devices.
For parameters not listed in this addendum, refer to the main datasheet for these
devices. In the event of a conflict between this addendum and the main datasheet,
this addendum takes precedence.
A3212ADD1
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
A3211 and A3212
MICROPOWER,
ULTRA-SENSITIVE
HALL-EFFECT SWITCH
EL Package (2 mm × 2mm footprint), LT Packing Instruction (embossed tape and reel)
P
1
T
T
1
P
0
P
2
ØD
0
E
1
F
W
K
0
K
1
B
0
W
C
A
0
Unreel Direction
Unreel Direction
Cover Tape
Round Sprocket Holes
Pin #1
Mark
ØD
1
Reel Label
Carrier Tape
1. Pocket may have interior pedestals within specifications, at supplier discretion
2. Pocket centerlines to cavity center, not to pocket inspection hole
3. A
0
and B
0
measured 0.3 mm above exterior bottom of pocket
4. Pocket dimensions defined with reference to ANSI/EIA 481
Pin #1 oriented in quadrant 1 (ref. ANSI/EIA 481)
(trailing edge of device, as unreeled, side nearest
round sprocket holes)
Tape Dimensions
Package Designation-
Instruction
EL-LT: 7-in. reel,
3000 pieces/reel
75-80 leader pockets*
40-50 trailer pockets
Carrier Tape (mm)
Tape Lengths
W: 12.0 ±0.3
E
1
: 1.75 ±0.1
F: 5.5 ±0.05
T: 0.30 ±0.05
Sprocket Holes
D
0
: 1.5 +0.1/–0.0
P
0
: 4.0 ±0.1
P
1
: 4.0 ±0.05
P
2
: 2.0 ±0.05
Pocket Cavity
A
0
: 2.40 ±0.1
B
0
: 2.40 ±0.1
K
0
: 0.80 ±0.1
D
1
: 1.0 min.
Cover Tape
(mm)
W
C
: 9.2 ±0.1
T
1
: 0.0022 ±0.022
Leader pockets are the first off the reel when the tape is unreeled for dispensing devices.
Trailer pockets are the last pockets off the reel when unreeled for dispensing devices.
ØA
ØN
ØD
ØC
W
1
W
2
B
Detail A
See Detail A
Access hole and hub configuration may vary
at supplier discretion within limits shown
Reel Width, millimeters [inches]
Tape Width
12 [.472]
Reel
Type
7 in.
W
1
(inside, at Hub)
12.4 +2.0/–0.0
[.488 +.079/–.000]
W
2
(outside,
at Hub), Max.
18.4
[.724]
Reel Common Dimensions, millimeters [inches]
Reel Type
7 in.
A
180.0 ±0.50
[7.00]
N
50.0 ±0.50
[1.969 ±.020]
B
1.5 Min.
[.059]
C
13.0 +0.5/–0.2
[.512 +.020/–.008]
D
20.2 ± 0.500
[.795 ±.020]
A3212ADD1
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
2
A3211 and A3212
MICROPOWER,
ULTRA-SENSITIVE
HALL-EFFECT SWITCH
Allegro MicroSystems, LLC reserves the right to make, from time to time, such departures from the detail specifications as may be required to
permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that
the information being relied upon is current.
Allegro products are not authorized for use as critical components in life-support devices or systems without express written approval.
The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, LLC assumes no responsibility for its
use; nor for any infringement of patents or other rights of third parties which may result from its use.
Copyright © 2013 Allegro MicroSystems, LLC
A3212ADD1
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
3
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