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A1221LUA-T The Allegro Microsystems A1221LUA-T is a Hall Effect Latch sensor designed for reliable operation. It features a wide operating voltage range and stable performance across temperatures.
Mfr Part #:

A1221LUA-T

Available from 2 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro Microsystems A1221LUA-T is a Hall Effect Latch sensor designed for reliable operation. It features a wide operating voltage range and stable performance across temperatures.
✓ Total Stock: 20,560 pcs
$ Price Range: $1.50

A1221LUA-T Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
15,000 pcs
On Request
15000 pcs On Request 1 On Request On Request 18+ On Request On Request
Fe Components ✓
Non-Authorised Inventory information
5,560 pcs
On Request
5560 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

A1221LUA-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Function
Mounting Type
Operating Temperature
Output Type
Polarization
Sensing Range
Supplier Device Package
Supplier Package
Technology
Test Condition
Voltage
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A1221LUA-T Description

Short technical summary and product information.

The Allegro Microsystems A1221LUA-T is a Hall Effect Latch sensor, part of a series known for temperature stability and resistance to physical stress. This device is suitable for operation over extended temperature ranges up to 150°C.

 

Key electrical characteristics include an operating voltage range of 3V to 24V and a typical operating current of 4mA. The sensor utilizes Hall Effect technology and provides an Open Drain output type. It is designed to function as a latch, activated by a South Pole magnetic field.

 

Packaged in a 3-pin SIP (Single In-line Package) for through-hole mounting, the A1221LUA-T is built for solid-state reliability. Its sensing range is specified with a 9mT trip and -9mT release point, ensuring precise magnetic detection.

 

Typical applications for this type of sensor include automotive systems such as power closures, electronic power steering, and motor control for seats, windows, and trunks. It is also applicable in industrial motor encoders, commutation sensing, and BLDC or fan motors.

A1221LUA-T Quick Information

Product Type: Hall Effect Sensor
Canonical Name: A1221LUA-T Hall Effect Latch Sensor
Subcategory: Latch

A1221LUA-T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

A1221LUA-T Estimated Pricing

Qty Low High
1+ $1.50 $1.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

A1221LUA-T Features

  • Hall Effect latch sensor technology.
  • Wide 3V to 24V operating voltage.
  • Operates from -40°C to 150°C.
  • Open Drain output type.
  • 3-pin SIP through-hole package.

A1221LUA-T Applications

  • Automotive power closures and actuators.
  • Electronic power steering systems.
  • Seat, window, and sunroof motors.
  • Industrial motor and encoder applications.
  • Commutation and index sensing.

A1221LUA-T FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the A1221LUA-T?

The A1221LUA-T operates from 3V to 24V.

What is the operating temperature range for this Hall Effect sensor?

This sensor operates in a temperature range of -40°C to 150°C.

What type of output does the A1221LUA-T have?

The A1221LUA-T features an Open Drain output type.

How is the A1221LUA-T packaged?

The A1221LUA-T is supplied in a 3-SIP package for through-hole mounting.

What is the RoHS status of the A1221LUA-T?

The A1221LUA-T is RoHS3 Compliant.

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