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HomeProductsSensors, TransducersMagnetic Sensors - Switches (Solid State)A1155LLHLT-T
A1155LLHLT-T Image
Image may be representation.
See specifications for product details.

A1155LLHLT-T - Allegro MicroSystems

Manufacturer Part Number
A1155LLHLT-T
Manufacturer
Allegro MicroSystems
Allelco Part Number
32D-A1155LLHLT-T
ECAD Model
Parts Description
MAGNETIC SWITCH UNIPOLAR SOT23W
Detailed Description
Package
SOT-23W
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
In stock: 46260

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Quantity

Specifications

A1155LLHLT-T Tech Specifications
Allegro MicroSystems - A1155LLHLT-T technical specifications, attributes, parameters and parts with similar specifications to Allegro MicroSystems - A1155LLHLT-T

Product Attribute Attribute Value  
Manufacturer Allegro MicroSystems  
Voltage - Supply 3V ~ 24V  
Test Condition -40°C ~ 150°C  
Technology Hall Effect  
Supplier Device Package SOT-23W  
Series -  
Sensing Range 6mT Trip, 1mT Release  
Polarization South Pole  
Package / Case SOT-23W  
Product Attribute Attribute Value  
Package Tape & Reel (TR)  
Output Type Current Source  
Operating Temperature -40°C ~ 150°C (TA)  
Mounting Type Surface Mount  
Function Unipolar Switch  
Features -  
Current - Supply (Max) 17mA  
Current - Output (Max) -  
Base Product Number A1155  

Parts Introduction

Manufacturer Part Number

A1155LLHLT-T

Manufacturer

Allegro MicroSystems

Introduction

Allegro MicroSystems' A1155 is a unipolar Hall-effect switch IC designed for use in high-temperature industrial and automotive applications.

Product Features and Performance

Operates from 3V to 24V supply

Wide operating temperature range of -40°C to 150°C

Precise magnetic switching thresholds of 6mT (trip) and 1mT (release)

Fast response time

Low quiescent current of 17mA (max)

Solid-state Hall-effect technology

Product Advantages

Suitable for high-temperature environments

Robust magnetic switching performance

Low power consumption

Compact surface-mount package

Key Technical Parameters

Supply Voltage: 3V to 24V

Operating Temperature: -40°C to 150°C

Magnetic Switching Thresholds: 6mT (trip), 1mT (release)

Maximum Supply Current: 17mA

Quality and Safety Features

RoHS3 compliant

Tape and reel packaging for surface mount assembly

Compatibility

Suitable for a variety of industrial and automotive applications requiring solid-state magnetic sensing

Application Areas

Industrial machinery

Automotive systems

Robotics

Appliances

Product Lifecycle

The A1155 is an active and widely available product from Allegro MicroSystems.

Key Reasons to Choose This Product

Reliable operation in high-temperature environments

Precise magnetic switching thresholds for accurate sensing

Low power consumption for energy-efficient designs

Compact surface-mount package for space-constrained applications

RoHS3 compliance for use in environmentally-friendly products

Parts with Similar Specifications

The three parts on the right have similar specifications to Allegro MicroSystems A1155LLHLT-T

Product Attribute A1155LLHLT-T A1172ECGLT A1171EEWLT-P A1150LLHLT-T
Part Number A1155LLHLT-T A1172ECGLT A1171EEWLT-P A1150LLHLT-T
Manufacturer Allegro MicroSystems Allegro MicroSystems Allegro MicroSystems Allegro MicroSystems
Technology Hall Effect Hall Effect Hall Effect Hall Effect
Base Product Number A1155 - A1171 A1150
Function Unipolar Switch Omnipolar Switch Omnipolar, Unipolar Switch Unipolar Switch
Features - - Programmable Function -
Output Type Current Source Push-Pull Push-Pull Current Source
Current - Output (Max) - 1mA 1mA -
Current - Supply (Max) 17mA 2mA 2mA 17mA
Polarization South Pole North Pole, South Pole North Pole, South Pole South Pole
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Voltage - Supply 3V ~ 24V 1.65V ~ 3.5V 1.65V ~ 3.5V 3V ~ 24V
Operating Temperature -40°C ~ 150°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 150°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Sensing Range 6mT Trip, 1mT Release ±5.5mT Trip, ±6mT Release ±5.5mT Trip, ±0.6mT Release 11mT Trip, 4.5mT Release
Supplier Device Package SOT-23W 4-WLCSP (0.96x0.96) 6-DFN/MLP (1.5x2) SOT-23W
Series - - - -
Package / Case SOT-23W 4-UFBGA, WLCSP 6-XFDFN Exposed Pad SOT-23W
Test Condition -40°C ~ 150°C 25°C 25°C -40°C ~ 150°C

A1155LLHLT-T Datasheet PDF

Download A1155LLHLT-T pdf datasheets and Allegro MicroSystems documentation for A1155LLHLT-T - Allegro MicroSystems.

PCN Packaging
Tape Change 27/Jan/2023.pdf
HTML Datasheet
Cylindrical Battery Holders.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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A1155LLHLT-T Image

A1155LLHLT-T

Allegro MicroSystems
32D-A1155LLHLT-T

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