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A3213ELHLT-T Allegro Microsystems, Omnipolar Hall Effect Sensor Switch, 3-Pin SOT-23

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RS Stock No.:
Mfr. Part No.:
Allegro Microsystems
UnitsPer unitPer Pack*
5 - 20£0.832£4.16
25 - 95£0.68£3.40
100 - 245£0.576£2.88
250 - 495£0.498£2.49
500 +£0.48£2.40
*price indicative

A3213/4 Micropower Ultrasensitive Hall Effect Switches, Allegro Microsystems

The Allegro Microsystems A3213/4 ultra-sensitive, pole independent Hall-effect switches with a latched digital output are aimed at use in battery-operated, portable equipment. Their 2.4 V to 5.5 V operation and a unique clocking scheme reduces the average operating power use. The A3213 to 825 μW and the A3214 to 14 μW (typical, at 2.75 V).

Either a north or south pole turns on the output.

They include a Hall-voltage generator, small-signal amplifier, chopper stabilisation, a latch, and a MOSFET output.

AEC-Q100 automotive qualified
Micropower operation
Superior temperature stability
Low switchpoint drift
Insensitive to physical stress
High ESD protection

Hall Effect Sensors, Allegro MicroSystems

Magnetic TypeOmnipolar
Mounting TypeSurface Mount
Pin Count3
Minimum Magnetic Sensor Release Point-70 Gs
Maximum Magnetic Sensor Operating Point70 Gs
Minimum Operating Supply Voltage2.4 V
Maximum Operating Supply Voltage5.5 V
Dimensions2.98 x 1.91 x 0.95mm
Minimum Operating Temperature-40 °C
Maximum Operating Temperature+85 °C
Package TypeSOT-23
Typical Magnetic Sensor Hysteresis10 Gs