Skip to the content
PCBKitNew board
AH431 on a board, in 3D

AH431

Alfa

-40℃~+150℃ 3.5V~60V 3.5mA 6mT 8.5mT Built-in Schmitt trigger Unipolar SOT-23 Hall Switches ROHS

Extended
Category
Hall Sensor
Package
TO-92S
Pins
3

Overview

The AH431 is a hall Sensor made by Alfa in a TO-92S package with 3 pins. -40℃~+150℃ 3.5V~60V 3.5mA 6mT 8.5mT Built-in Schmitt trigger Unipolar SOT-23 Hall Switches ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AH431_C2691445, from EasyEDA) and its footprint (Package_TO_SOT_THT:TO-92S, from KiCad's library), ready for a KiCad board. 84 are in stock at JLCPCB (part C2691445).

Symbol

VSUP1GND2NC3
EasyEDA_Cloud:AH431_C2691445From EasyEDA

Footprint

123
Package_TO_SOT_THT:TO-92SFrom KiCad's library

Parameters

7
Features
Built-in Schmitt trigger
Operating Current
3.5mA
Operating Temperature
-40℃~+150℃
Operation Points
8.5mT
Release Points
6mT
Type
Unipolar
Voltage - Supply
3.5V~60V

Order codes

2

Pinout

3
The pins of the AH431
PinNameType
1VSUPUnspecified
2GNDUnspecified
3NCUnspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/alfa/AH431" title="AH431 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/alfa/AH431.jpg" alt="AH431" width="1200" height="900">
A picture that opens the part, for a README
[![AH431](https://pcbkit.io/embed/parts/alfa/AH431.jpg?size=s)](https://pcbkit.io/parts/alfa/AH431)

Questions

Is there a KiCad symbol and footprint for the AH431?

Yes. The symbol is EasyEDA_Cloud:AH431_C2691445 and the footprint Package_TO_SOT_THT:TO-92S, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the AH431?

TO-92S, with 3 pins. Its footprint is drawn on this page.

Where is the AH431 datasheet?

Alfa publishes it: the Datasheet link on this page opens it.

Where can I order the AH431?

JLCPCB lists it as part C2691445, with 84 in stock; the sellers' links on this page open their listings.

What can replace the AH431?

Parts like it in the library: the A1220LUA-T by Allegro MicroSystems, LLC, the SS496A1 by Honeywell, the A1326LUA-T by Allegro MicroSystems, LLC and the A1212LUA-T by Allegro MicroSystems, LLC. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8