A1120EUA-T

SIP-3 Hall Effect Sensor, rectangular in shape, capable of detecting magnetic fields from 0
4,950 Effective Inventory

A1120EUA-T

Effective Inventory4,950

SIP-3 Hall Effect Sensor, rectangular in shape, capable of detecting magnetic fields from 0

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Certification

We have successfully obtained various certification standards and have established our own professional testing laboratory. This ensures that every product we supply to our customers meets the highest quality standards. We adhere to strict testing protocols to maintain the consistency and accuracy of our products. To ensure that our products are original and genuine, we also collaborate with reputable third-party testing facilities to conduct rigorous quality testing. Our commitment to quality extends to meeting industry, legal, regulatory, and ISO 9001:2015 requirements.

Shipping & Payment

Shipping & Payment

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Service & Packaging

Service & Packaging

About After Sales Service

All Parts Extended Quality Guarantee

Initiate the application within 90 days from the shipment date.

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A1120EUA-T DataSheet
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Rapid Quote

Please submit RFQ for A1120EUA-T or email to us: Email: [email protected], we will contact you in 12 hours.

Details

The A1120EUA-T is a chopper stabilized precision hall effect unipolar switch in 3 pin SIP package. It is extremely temperature stable and stress resistant sensor IC and especially suited for operation over extended temperature ranges to 150°C. Superior high temperature performance is made possible through dynamic offset cancellation which reduces residual offset voltage which is normally caused by device overmoulding, temperature dependencies and thermal stress. The A1120 includes voltage regulator, hall voltage generator, small signal amplifier, chopper stabilization, schmitt trigger and short circuit protected open drain output to sink up to 25mA on a single silicon chip. An on-board regulator permits operation with supply voltages of 3V to 24V. A south pole of sufficient strength turns the output on and removal of magnetic field turns the output off.

Key Features

  • Automotive grade AEC-Q100 qualified
  • Unipolar switchpoints
  • Chopping frequency (fc) of 800KHz
  • Operate point (BOP) of 35G, release point (BRP) of 25G and hysteresis (BHYS) of 10G
  • Resistant to physical stress, superior temperature stability
  • Output in south (positive) magnetic field is ON (logic low)
  • Output short circuit protection and reverse battery protection
  • Operation from unregulated supply
  • Solid state reliability
  • Operating ambient temperature range from -40°C to 85°C

Application

  • Sensing & Instrumentation
  • Automotive

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category ! Board Mount Hall Effect / Magnetic Sensors RoHS Details
Type Unipolar Operating Supply Current 4 mA
Maximum Output Current 25 mA Operating Point Min/Max 35 G to 50 G
Release Point Min/Max (Brp) 5 G to 25 G Operating Supply Voltage ! 3 V to 24 V
Minimum Operating Temperature - 40 C Maximum Operating Temperature ! + 85 C
Mounting Style Through Hole Package / Case SIP-3
Series A1120 Brand Allegro MicroSystems
Moisture Sensitive Yes Output Type Open Drain
Output Voltage 185 mV Product Hall Effect Switches
Product Type ! Hall Effect / Magnetic Sensors Factory Pack Quantity 500
Subcategory Sensors Supply Voltage - Max 24 V
Supply Voltage - Min 3 V Termination Style Solder Pad
With Switch With Switch

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification A1120EUA-T PDF Download

FAQs

What is A1120EUA-T?

The A1120EUA-T is a high-precision, micro-power omnipolar Hall effect switch designed by Allegro Microsystems. It is ideal for applications requiring accurate sensing of magnetic fields, such as position and proximity detection in automotive, industrial, and consumer electronics.

How Does A1120EUA-T Work?

The A1120EUA-T operates based on the Hall effect, where it detects changes in magnetic fields and switches its output accordingly. It offers a highly sensitive and reliable solution for detecting the presence of magnetic fields, making it suitable for various magnetic sensing applications.

How Many Pins does A1120EUA-T have and What are the Functions of the Pinout Configuration?

The A1120EUA-T is housed in a 3-pin SOT-89B package. The pinout configuration includes:

  • VCC: Power supply pin.
  • GND: Ground pin.
  • OUT: Output pin for the Hall effect switch.

What are the Pros and Cons of A1120EUA-T?

Pros:

  • High Precision: Provides accurate detection of magnetic fields for precise positioning applications.
  • Micro-Power Operation: Operates with low power consumption, suitable for battery-powered devices.
  • Omnipolar Sensing: Capable of detecting both north and south poles of a magnetic field, increasing flexibility in applications.
  • Small Package: The SOT-89B package is compact and space-efficient for design flexibility.

Cons:

  • Single Output: Provides a single digital output, limiting flexibility in certain applications.
  • Temperature Sensitivity: Performance may be affected by temperature variations, requiring temperature compensation in some cases.

Are There Any Equivalents/Alternatives to A1120EUA-T for Recommendation?

Similar hall effect switches to the A1120EUA-T include the A1101R08C from Allegro Microsystems and the A1170LUA-T from Allegro Microsystems.

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