A3230LUA-T Equivalent & Substitute Parts

Part Overview

The A3230LUA-T is a bipolar magnetic switch utilizing Hall Effect technology, manufactured by Allegro MicroSystems. This component functions as a digital switch with open drain output, designed for applications requiring detection of magnetic field polarity changes. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations. The A1250LUA-T serves as a direct functional equivalent with active product status and enhanced automotive qualification.

Substiute Parts

A3230LUA-T

Allegro MicroSystemsIn Stock: 2101A3230LUA-T Datasheet

Current PartRFQ

A1250LUA-T

Allegro MicroSystemsIn Stock: 15582A1250LUA-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The A1250LUA-T qualifies as a direct substitute for the A3230LUA-T based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Identical bipolar switch function with Hall Effect technology
• Identical polarization detection (North Pole, South Pole)
• Identical sensing range (2.5mT Trip, -2.5mT Release)
• Identical output type (Open Drain)
• Identical operating temperature range (-40°C ~ 150°C)
• Identical mounting type (Through Hole)
• Identical package configuration (3-SSIP)
• Identical RoHS3 compliance and MSL rating

Allowable Parameter Variations:

• Supply voltage range: A1250LUA-T operates 3V ~ 24V (vs. A3230LUA-T 3.6V ~ 24V). The A1250LUA-T lower minimum voltage of 3V is compatible with applications designed for the A3230LUA-T.
• Supply current: A1250LUA-T maximum 4mA (vs. A3230LUA-T 4.6mA). This variation remains within acceptable design margins for equivalent functionality.

The A1250LUA-T additionally carries automotive-grade qualification (AEC-Q100) and active product status, providing enhanced long-term availability and supply chain stability compared to the obsolete A3230LUA-T.

Parameter Comparison

Engineering Selection Recommendations

The A1250LUA-T is the appropriate substitute for the A3230LUA-T in all applications where the A3230LUA-T was previously specified. Selection rationale is based on:

Product Status: The A3230LUA-T is obsolete, while the A1250LUA-T maintains active product status with established supply chain availability (15,550 units in stock vs. 2,000 units for the obsolete part).

Compliance & Qualification: The A1250LUA-T carries AEC-Q100 automotive qualification, providing additional assurance for mission-critical applications. Both parts maintain ROHS3 compliance and identical environmental ratings.

Electrical Compatibility: The A1250LUA-T's extended lower supply voltage limit (3V vs. 3.6V) and marginally higher supply current (4mA vs. 4.6mA) present no functional constraints for designs originally developed around the A3230LUA-T specifications.

Physical Compatibility: Identical package configuration (3-SSIP) and through-hole mounting enable direct PCB-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the A1250LUA-T be used as a direct replacement for the A3230LUA-T on existing PCBs?

A: Yes. Both components share identical package configuration (3-SSIP), through-hole mounting type, and pinout. No PCB modifications are required for substitution.

Q: What are the key electrical differences between these parts?

A: The A1250LUA-T operates at a lower minimum supply voltage (3V vs. 3.6V) and has a slightly higher maximum supply current specification (4mA vs. 4.6mA). Both differences are compatible with existing circuit designs. All other electrical parameters, including sensing range, output current, and operating temperature, are identical.

Q: Why is the A1250LUA-T preferred over the A3230LUA-T?

A: The A1250LUA-T has active product status with significantly higher inventory availability and carries AEC-Q100 automotive qualification. The A3230LUA-T is obsolete, making long-term supply uncertain.

Q: Are there any application restrictions when substituting to the A1250LUA-T?

A: No application restrictions exist. The A1250LUA-T maintains identical functional specifications for bipolar magnetic field detection, sensing thresholds, output characteristics, and temperature operating range.

Q: What is the significance of AEC-Q100 qualification on the A1250LUA-T?

A: AEC-Q100 qualification indicates the component meets automotive industry reliability and quality standards. This certification is beneficial for automotive applications and provides additional confidence in component longevity and performance consistency.

Q: Are both parts RoHS compliant?

A: Yes. Both the A3230LUA-T and A1250LUA-T are ROHS3 compliant with identical moisture sensitivity levels (MSL 1 - Unlimited).