Chopper Stabilized Precision Hall Effect Switches
A1120, A1121, A1122,
A1123, and A1125
2
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Selection Guide
Part Number
Packing
1
Mounting
Ambient, T
A
Switchpoints
(Typ.)
Output In South (Positive)
Magnetic Field
B
OP
B
RP
A1120ELHLX-T  13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
40篊 to 85篊
35   25
On (logic low)
A1120ELHLT-T
2
7-in. reel, 3000 pieces/reel   3-pin SOT23W surface mount
A1120EUA-T    Bulk, 500 pieces/bag
3-pin SIP through hole
A1120LLHLX-T  13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
40篊 to 150篊
A1120LLHLT-T
2
7-in. reel, 3000 pieces/reel   3-pin SOT23W surface mount
A1120LUA-T    Bulk, 500 pieces/bag
3-pin SIP through hole
A1121ELHLX-T  13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
40篊 to 85篊
95   70
A1121ELHLT-T
2
7-in. reel, 3000 pieces/reel   3-pin SOT23W surface mount
A1121EUA-T    Bulk, 500 pieces/bag
3-pin SIP through hole
A1121LLHLX-T  13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
40篊 to 150篊
A1121LLHLT-T
2
7-in. reel, 3000 pieces/reel   3-pin SOT23W surface mount
A1121LUA-T    Bulk, 500 pieces/bag
3-pin SIP through hole
A1122ELHLX-T  13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
40篊 to 85篊
150   125
A1122ELHLT-T
2
7-in. reel, 3000 pieces/reel   3-pin SOT23W surface mount
A1122EUA-T    Bulk, 500 pieces/bag
3-pin SIP through hole
A1122LLHLX-T  13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
40篊 to 150篊
A1122LLHLT-T
2
7-in. reel, 3000 pieces/reel   3-pin SOT23W surface mount
A1122LUA-T    Bulk, 500 pieces/bag
3-pin SIP through hole
A1123LLHLX-T  13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
40篊 to 150篊  280   225
A1123LLHLT-T
2
7-in. reel, 3000 pieces/reel   3-pin SOT23W surface mount
A1123LUA-T    Bulk, 500 pieces/bag
3-pin SIP through hole
A1125ELHLX-T  13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
40篊 to 85篊
35   25
Off (logic high)
A1125ELHLT-T
2
7-in. reel, 3000 pieces/reel   3-pin SOT23W surface mount
A1125EUA-T    Bulk, 500 pieces/bag
3-pin SIP through hole
A1125LLHLX-T  13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
40篊 to 150篊
A1125LLHLT-T
2
7-in. reel, 3000 pieces/reel   3-pin SOT23W surface mount
A1125LUA-T    Bulk, 500 pieces/bag
3-pin SIP through hole
1
Contact Allegro for additional packing options.
2
Available through authorized Allegro distributors only.