A1126LLHLT-T Allegro Microsystems,, Omnipolar Hall Effect Sensor, 3-Pin SOT-23

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): PH
Product Details

A1126 Chopper Stabilised Omnipolar Hall Effect Sensor Switches, Allegro Microsystems

The Allegro Microsystems A1126 is an omnipolar, ultrasensitive Hall-effect switch with a digital output. They include a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper stabilisation, Schmitt trigger, and a short circuit protected open-drain output.

This device has an integrated regulator permitting operation to 24 V.

They are suitable for operation through extended temperature ranges from -40°C to 150°C.
Activation the A1126 with either a north or a south polarity and without a magnetic field, the output is off. This magnetic polarity independence makes it an excellent replacement for reed switches. It also simplifies manufacturing as it does not require the magnets to be orientated.

The A1126 is rated for operation between the ambient temperatures –40°C to 150°C.

AEC-Q100 automotive qualified
Omnipolar operation
High speed, 4-phase chopper stabilisation
Low switchpoint drift
Superior temperature stability
Insensitive to physical stress
Reverse-battery protection
Robust EMC capability
Robust ESD

Hall Effect Sensors, Allegro MicroSystems

Attribute Value
Magnetic Type Omnipolar
Mounting Type Surface Mount
Pin Count 3
Minimum Magnetic Sensor Release Point -50 Gs
Maximum Magnetic Sensor Operating Point 55 Gs
Minimum Operating Supply Voltage 3 V
Maximum Operating Supply Voltage 24 V
Length 2.98mm
Width 1.91mm
Height 0.95mm
Dimensions 2.98 x 1.91 x 0.95mm
Minimum Operating Temperature -40 °C
Maximum Operating Temperature +150 °C
Package Type SOT-23
Typical Magnetic Sensor Hysteresis 5 → 30 Gs
270 In stock for delivery within 5 working day(s)
Price (ex. GST) Each (In a Pack of 5)
$ 2.678
(exc. GST)
$ 3.08
(inc. GST)
Per unit
Per Pack*
5 - 20
25 - 95
100 - 245
250 - 495
500 +
*price indicative
Packaging Options:
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