A1120, A1121, A1122,
A1123, and A1125
Chopper-Stabilized Precision Hall-Effect Switches
Selection Guide
Part Number
Packing1
Mounting
A1120ELHLX-T 13-in. reel, 10000 pieces/reel 3-pin SOT23W surface mount
A1120ELHLT-T2 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
A1120LLHLT-T2 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
A1121ELHLT-T2 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
A1121LLHLT-T2 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
A1122ELHLT-T2 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
A1122LLHLT-T2 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
A1123LLHLT-T2 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
A1125ELHLT-T2 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
A1125LLHLT-T2 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.
Ambient, TA
–40ºC to 85ºC
–40ºC to 150ºC
–40ºC to 85ºC
–40ºC to 150ºC
–40ºC to 85ºC
–40ºC to 150ºC
–40ºC to 150ºC
–40ºC to 85ºC
–40ºC to 150ºC
Switchpoints
(Typ.)
BOP
BRP
Output In South (Positive)
Magnetic Field
35
25
95
70
On (logic low)
150 125
280 225
35
25
Off (logic high)
Allegro MicroSystems, LLC
2
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com