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A1221LLHLX-T The Allegro MicroSystems A1221LLHLX-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 #:

A1221LLHLX-T

Available from 2 distributors
Mfr Name: Allegro Microsystems
Allegro Microsystems
The Allegro MicroSystems A1221LLHLX-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: 28,571 pcs
$ Price Range: $1.50

A1221LLHLX-T Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Seba Components ✓
Non-Authorised Inventory information
20,000 pcs
On Request
20000 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
8,571 pcs
On Request
8571 pcs On Request 1 On Request On Request 17+ 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.

A1221LLHLX-T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Function
Industrial Grade
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Output Type
Polarization
Sensing Range
Supplier Device Package
Supplier Package
Technology
Test Condition
Voltage
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A1221LLHLX-T Description

Short technical summary and product information.

The Allegro MicroSystems A1221LLHLX-T is a Hall-effect latch sensor IC. It is designed for extreme temperature stability and resistance to physical stress, making it suitable for operation up to 150°C. The device integrates a voltage regulator, Hall-voltage generator, amplifier, chopper stabilization, Schmitt trigger, and a short-circuit protected open-drain output.

 

Key electrical specifications include an operating voltage range of 3V to 24V and an operating current of 4mA. The sensing range is specified as 9mT trip and -9mT release. The output type is open-drain, and it is polarized for a South Pole.

 

This sensor is available in a SOT-23W surface-mount package. It is designed for applications requiring precise magnetic switching, such as automotive systems and industrial motor control.

A1221LLHLX-T Quick Information

Product Type: Hall-Effect Latch Sensor
Canonical Name: Allegro A1221LLHLX-T Hall-Effect Latch Sensor
Subcategory: Latch

A1221LLHLX-T Compliance

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

A1221LLHLX-T Estimated Pricing

Qty Low High
1+ $1.50 $1.50

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

A1221LLHLX-T Features

  • Hall-effect latch sensor IC.
  • Wide 3V to 24V operating voltage.
  • Operates from -40°C to 150°C.
  • Open-drain output type.
  • SOT-23W surface-mount package.

A1221LLHLX-T Applications

  • Automotive power closures.
  • Electronic power steering.
  • Seat and window motors.
  • Industrial motor encoders.
  • BLDC motor commutation.

A1221LLHLX-T FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the A1221LLHLX-T?

The operating voltage range is 3V to 24V.

What is the operating temperature range for this Hall-effect sensor?

The operating temperature range is -40°C to 150°C.

What type of output does the A1221LLHLX-T have?

It has an open-drain output type.

What package is the A1221LLHLX-T supplied in?

It is supplied in a SOT-23W package.

Is the A1221LLHLX-T RoHS compliant?

Yes, it is RoHS3 Compliant.

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