A1121LUA-T Allegro Microsystems,, Unipolar Hall Effect Sensor, 3-Pin SIP

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): PH
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 40 Gs
Maximum Magnetic Sensor Operating Point 135 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 +150 °C
Package Type SIP
Typical Magnetic Sensor Hysteresis 25 Gs
25 : Next working day
70 Within 5 working day(s) (Global stock)
Price (ex. GST) Each (In a Pack of 5)
$ 2.74
(exc. GST)
$ 3.15
(inc. GST)
units
Per unit
Per Pack*
5 - 20
$2.74
$13.70
25 - 95
$2.58
$12.90
100 - 245
$2.448
$12.24
250 - 495
$2.348
$11.74
500 +
$2.304
$11.52
*price indicative
Packaging Options:
Related Products
Integrated circuits utilising the Hall Effect to implement ...
Description:
Integrated circuits utilising the Hall Effect to implement non-contact sensing, switching and latching functions.
Description:
Allegro Current sensor ICs in CA and CB packages. Conductor resistance of 100 μΩ typical for ultra low-power loss. Automotive grade options for harsh applications environments3000 Vrms galvanic isolation.
Ceramic based, linear Hall-effect ratiometric devices which produce ...
Description:
Ceramic based, linear Hall-effect ratiometric devices which produce an output voltage proportional to the intensity of the magnetic field to which they are exposed. Three-pin in-line PCB terminals, 0.1in spacing. Laser trimmed thin and thick film resistors-40 to 125°C operating ...
Current sensing package with flip-chip technology3000 Vrms galvanic ...
Description:
Current sensing package with flip-chip technology3000 Vrms galvanic isolation. High accuracy over temperature. Typical output error of 1%.