A1120EUA-T Allegro Microsystems, Unipolar Hall Effect Sensor Switch, 3-Pin SIP

Technical Reference
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Product Details

A1120/1/2/3/5 Chopper Stabilised Hall Effect Sensor Switches, Allegro Microsystems

The Allegro Microsystems A1120, A1121, A1122, A1123, and A1125 Hall-effect, unipolar switches are temperature-stable and stress-resistant sensor ICs. High temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device over-molding, temperature dependencies, and thermal stress.

They include a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper stabilisation, Schmitt trigger, and a short circuit protected open-drain output to sink up to 25 mA. The voltage regulator enables supply voltages of 3 V to 24 V.

For the A1120, A1121, A1122, and A1123, a south pole turns on the output and removal turns off the output. For the A1125, it is reversed and the south pole turns off the A1125 output.

Unipolar switchpoints
Resistant to physical stress
Superior temperature stability
Output short circuit protection
Operation from unregulated supply

Hall Effect Sensors, Allegro MicroSystems

Specifications
Attribute Value
Magnetic Type Unipolar
Mounting Type Through Hole
Pin Count 3
Minimum Magnetic Sensor Release Point 5 Gs
Maximum Magnetic Sensor Operating Point 50 Gs
Minimum Operating Supply Voltage 3 V
Maximum Operating Supply Voltage 24 V
Length 4.09mm
Width 1.52mm
Height 3.02mm
Dimensions 4.09 x 1.52 x 3.02mm
Minimum Operating Temperature -40 °C
Maximum Operating Temperature +85 °C
Package Type SIP
Typical Magnetic Sensor Hysteresis 10 Gs
1500 In stock - FREE next working day delivery available
Price Each (In a Bag of 500)
£ 0.443
(exc. VAT)
£ 0.532
(inc. VAT)
Units
Per unit
Per Bag*
500 +
£0.443
£221.50
*price indicative
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