A1386LLHLT-T Hall Effect Sensor Equivalent & Substitute Parts

Part Overview

The A1386LLHLT-T is a Hall Effect analog sensor manufactured by Allegro MicroSystems in SOT-23W surface mount packaging. This single-axis magnetic sensor operates with a supply voltage range of 4.5V to 5.5V and delivers analog voltage output with a 20kHz bandwidth. The device is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and component procurement.

Key Parameters

Parameter	A1386LLHLT-T
Manufacturer	Allegro MicroSystems
Category	Magnetic Sensors
Technology	Hall Effect
Axis Configuration	Single
Output Type	Analog Voltage
Voltage - Supply	4.5V ~ 5.5V
Current - Supply (Max)	8mA
Current - Output (Max)	2mA
Bandwidth	20kHz
Operating Temperature	-40°C ~ 150°C
Features	Programmable, Temperature Compensated
Package / Case	SOT-23W
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the A1386LLHLT-T is determined by the following critical parameters: Hall Effect technology, single-axis configuration, analog voltage output, SOT-23W package, surface mount mounting type, and operating temperature range of -40°C to 150°C. All identified substitutes maintain these core specifications.

The substitute parts are grouped into two functional categories based on supply voltage compatibility:

Group 1 (3V ~ 3.63V Supply): A1318LLHLT-1-T, A1318LLHLT-2-T, and A1319LLHLT-5-T operate at lower supply voltages with increased maximum supply current (10mA) and output current (10mA) compared to the original part.

Group 2 (4.5V ~ 5.5V Supply): A1389LLHLT-9-T maintains the same supply voltage range as the A1386LLHLT-T with increased maximum supply current (11.5mA) and output current (10mA).

All substitutes share identical bandwidth (20kHz), operating temperature range (-40°C to 150°C), package type (SOT-23W), and regulatory compliance (ROHS3, REACH Unaffected, EAR99).

Parameter Comparison

Parameter	A1386LLHLT-T	A1318LLHLT-1-T	A1318LLHLT-2-T	A1319LLHLT-5-T	A1389LLHLT-9-T
Technology	Hall Effect	Hall Effect	Hall Effect	Hall Effect	Hall Effect
Axis	Single	Single	Single	Single	Single
Output Type	Analog Voltage	Analog Voltage	Analog Voltage	Analog Voltage	Analog Voltage
Voltage - Supply	4.5V ~ 5.5V	3V ~ 3.63V	3V ~ 3.63V	3V ~ 3.63V	4.5V ~ 5.5V
Current - Supply (Max)	8mA	10mA	10mA	10mA	11.5mA
Current - Output (Max)	2mA	10mA	10mA	10mA	10mA
Bandwidth	20kHz	20kHz	20kHz	20kHz	20kHz
Operating Temperature	-40°C ~ 150°C	-40°C ~ 150°C	-40°C ~ 150°C	-40°C ~ 150°C	-40°C ~ 150°C
Package / Case	SOT-23W	SOT-23W	SOT-23W	SOT-23W	SOT-23W
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Not For New Designs	Not For New Designs	Not For New Designs	Not For New Designs

Engineering Selection Recommendations

Selection of substitute parts for the obsolete A1386LLHLT-T must be based on system supply voltage requirements and current specifications.

For systems operating at 4.5V to 5.5V supply voltage, the A1389LLHLT-9-T is the direct voltage-compatible substitute. This part maintains the original supply voltage range while providing increased current capacity (11.5mA supply, 10mA output).

For systems operating at 3V to 3.63V supply voltage, any of the three alternatives—A1318LLHLT-1-T, A1318LLHLT-2-T, or A1319LLHLT-5-T—are functionally equivalent. Selection between these three parts should be based on packaging requirements: A1318LLHLT-1-T is supplied in Cut Tape and Digi-Reel format, while A1318LLHLT-2-T and A1319LLHLT-5-T are supplied in Tape & Reel format.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 classification, ensuring regulatory consistency with the original component.

Frequently Asked Questions (FAQ)

Q: Can A1318LLHLT-1-T, A1318LLHLT-2-T, or A1319LLHLT-5-T be used as direct replacements for A1386LLHLT-T in existing designs?

A: Direct substitution is not recommended without circuit modification. These parts operate at 3V to 3.63V supply voltage, whereas the A1386LLHLT-T requires 4.5V to 5.5V. System power supply voltage must be adjusted to accommodate the lower voltage requirement of these substitutes.

Q: Is A1389LLHLT-9-T a pin-compatible replacement for A1386LLHLT-T?

A: Yes. The A1389LLHLT-9-T maintains identical SOT-23W packaging and surface mount configuration. Both parts operate within the 4.5V to 5.5V supply voltage range, making this the preferred substitute for voltage-compatible applications.

Q: What is the difference between A1318LLHLT-1-T and A1318LLHLT-2-T?

A: Both parts are electrically identical with matching specifications. The difference is packaging format: A1318LLHLT-1-T is supplied in Cut Tape and Digi-Reel format, while A1318LLHLT-2-T is supplied in Tape & Reel format. Selection depends on procurement and assembly requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitutes—A1318LLHLT-1-T, A1318LLHLT-2-T, A1319LLHLT-5-T, and A1389LLHLT-9-T—are ROHS3 compliant with REACH unaffected status, maintaining regulatory consistency with the original A1386LLHLT-T.

Q: What is the significance of "Not For New Designs" status on substitute parts?

A: This designation indicates that while the parts remain available for procurement, they are not recommended for new product development. For new designs, consultation with Allegro MicroSystems is recommended to identify current-generation alternatives with active product status.

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