A1180LLHLT-T Equivalent & Substitute Parts

Part Overview

The A1180LLHLT-T is a unipolar Hall Effect magnetic switch manufactured by Allegro MicroSystems, designed for automotive-grade applications requiring digital switching based on magnetic field detection. This component operates as a current source output device with programmable trip point functionality, suitable for South Pole magnetic field sensing across a wide supply voltage range of 4.6V to 24V.

The A1180LLHLT-T is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this magnetic sensor technology.

Substiute Parts

A1180LLHLT-T

Allegro MicroSystemsIn Stock: 929A1180LLHLT-T Datasheet

Current PartRFQ

TLE49761KHTSA1

Ampleon USA Inc.In Stock: 276546TLE49761KHTSA1 Datasheet

MFR RecommendedRFQ

TLE49762KHTSA1

Infineon TechnologiesIn Stock: 1100TLE49762KHTSA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the A1180LLHLT-T are selected based on the following critical parameters that determine functional compatibility:

Core Substitution Criteria:

• Technology: Hall Effect digital switch
• Function: Unipolar Switch with South Pole polarization
• Grade: Automotive with AEC-Q100 qualification
• Operating Temperature Range: -40°C ~ 150°C minimum
• Supply Current (Max): 17mA or lower
• Mounting Type: Surface Mount
• RoHS3 Compliance and REACH Unaffected status

The substitute parts identified (TLE49761KHTSA1 and TLE49762KHTSA1) meet these core electrical and mechanical requirements. Both are active products from established manufacturers, ensuring ongoing availability and supply chain support. The primary distinction between substitutes relates to output type configuration and package designation, which may require circuit-level evaluation depending on application requirements.

Parameter Comparison

Engineering Selection Recommendations

TLE49762KHTSA1 (Infineon Technologies) is the primary substitute candidate. This part maintains full alignment with the A1180LLHLT-T across all critical parameters: South Pole polarization, automotive grade, AEC-Q100 qualification, identical maximum supply current (17mA), matching operating temperature range (-40°C ~ 150°C), and ROHS3 compliance. The supply voltage range (3V ~ 18V) is narrower than the original but covers standard automotive voltage windows. The output type differs (Open Collector vs. Current Source), requiring circuit verification to confirm compatibility with existing signal conditioning or load circuits. This part is actively manufactured and available in high inventory quantities.

TLE49761KHTSA1 (Ampleon USA Inc.) is listed as an alternative substitute. Limited technical parameter data is provided in the available documentation, restricting detailed compatibility assessment. This part is actively manufactured and available. Circuit-level evaluation is required before implementation.

Both substitute parts carry active product status, ensuring long-term supply chain viability compared to the obsolete A1180LLHLT-T. Selection between substitutes should prioritize output type compatibility with existing circuit design and verified electrical performance under application-specific operating conditions.

Frequently Asked Questions (FAQ)

Q: Why is the A1180LLHLT-T classified as obsolete? A: The A1180LLHLT-T is no longer in active production. Substitute parts with equivalent or superior specifications are available from active manufacturers to support ongoing system requirements.

Q: What is the primary difference between the substitute parts? A: TLE49762KHTSA1 provides complete technical specification alignment with documented South Pole polarization and Open Collector output. TLE49761KHTSA1 is available as an alternative but has limited documented technical parameters. Both are Hall Effect unipolar switches suitable for automotive applications.

Q: Can I directly replace the A1180LLHLT-T with TLE49762KHTSA1? A: Direct replacement requires circuit-level verification. The output type differs (Current Source vs. Open Collector), which may affect signal conditioning requirements. Supply voltage range is narrower (3V ~ 18V vs. 4.6V ~ 24V). Verify that your application operates within the substitute's voltage window and that output stage circuitry is compatible with Open Collector logic.

Q: Are both substitute parts automotive-qualified? A: TLE49762KHTSA1 carries automotive grade classification and AEC-Q100 qualification, matching the original part. TLE49761KHTSA1 technical grade information is not fully documented in available data.

Q: What packaging options are available for substitutes? A: TLE49762KHTSA1 is available in TO-236-3, SC-59, and SOT-23-3 packages. TLE49761KHTSA1 packaging is specified as Bulk. Verify package compatibility with your PCB assembly process and design footprint requirements.

Q: Do the substitute parts meet RoHS and REACH compliance? A: TLE49762KHTSA1 is ROHS3 compliant and REACH unaffected, matching the original specification. Compliance status for TLE49761KHTSA1 is not documented in available data.

Q: What is the operating temperature range for substitutes? A: TLE49762KHTSA1 operates across -40°C ~ 150°C (TJ), matching the original part's temperature range. This covers standard automotive environmental requirements.