A1185EUA-T Equivalent & Substitute Parts

Part Overview

The A1185EUA-T is a unipolar magnetic switch utilizing Hall Effect technology, designed for automotive-grade applications. This component operates as a digital switch with current source output and programmable trip point functionality. The part is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure long-term supply chain reliability for new production and field service applications.

Substiute Parts

A1185EUA-T

Allegro MicroSystemsIn Stock: 1084A1185EUA-T Datasheet

Current PartRFQ

A1192LUA-T

Allegro MicroSystemsIn Stock: 1444A1192LUA-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A1185EUA-T is based on the following critical parameters that must remain consistent:

• Functional equivalence: Unipolar switch with Hall Effect technology and current source output
• Polarization: South Pole sensing capability
• Electrical compatibility: Supply voltage range and output characteristics
• Mechanical compatibility: Through-hole mounting in 3-SSIP package
• Automotive qualification: AEC-Q100 certification and automotive-grade classification
• Environmental compliance: RoHS3 compliance and REACH unaffected status

The A1192LUA-T qualifies as a direct substitute based on matching function, technology, polarization, package, mounting type, and automotive qualification requirements.

Parameter Comparison

Engineering Selection Recommendations

The A1192LUA-T is the qualified substitute for the obsolete A1185EUA-T. Both components maintain identical functional characteristics, package form factor, and automotive-grade AEC-Q100 certification. The A1192LUA-T offers extended operating temperature range (-40°C ~ 150°C versus -40°C ~ 85°C) and lower maximum supply current (6.9mA versus 17mA), both favorable characteristics for thermal management and power efficiency. The substitute part is currently in active production status with established supply chain availability. Both components comply with RoHS3 and REACH requirements, ensuring regulatory continuity.

Frequently Asked Questions (FAQ)

Q: Can the A1192LUA-T directly replace the A1185EUA-T in existing designs?

A: Yes. Both components share identical function (unipolar Hall Effect switch), polarization (South Pole), output type (current source), package (3-SSIP), and mounting method (through-hole). Automotive qualification (AEC-Q100) and compliance certifications are equivalent.

Q: What are the electrical differences between these parts?

A: The A1192LUA-T operates at a lower maximum supply current (6.9mA versus 17mA) and supports an extended upper operating temperature limit (150°C versus 85°C). The supply voltage range is slightly lower (3V minimum versus 4.6V minimum), though both support the full 24V upper limit.

Q: Is the 3-SSIP package identical for both parts?

A: Yes. Both the A1185EUA-T and A1192LUA-T use the 3-SSIP package with through-hole mounting, ensuring mechanical and electrical pin compatibility.

Q: What is the product status difference?

A: The A1185EUA-T is obsolete and no longer manufactured. The A1192LUA-T is active production, ensuring long-term availability and supply chain continuity.

Q: Are there compliance or certification differences?

A: No. Both components hold AEC-Q100 automotive qualification, RoHS3 compliance, and REACH unaffected status, maintaining regulatory equivalence.