AH49FQ

Document number: DS45387 Rev. 1 - 2

1 of 9

www.diodes.com

January 2023

© 2023 Copyright Diodes Incorporated. All Rights Reserved.

AH49FQ

LINEAR HALL EFFECT IC

Description

The

DIODES™ AH49FQ is a small, versatile linear Hall effect device

that is operated by the magnetic field from a permanent magnet or an

electromagnet. The output voltage is set by the supply voltage and

varies in proportion to the strength of the magnetic field.

The integrated circuitry features low-noise output, which makes it

unnecessary to use external filtering components. It also includes

precision resistors to provide increased temperature stability and

accuracy. The operating temperature range of these linear Hall sensors

is -40°C to +105°C, appropriate for automotive, commercial, consumer,

and industrial environments.

The AH49FQ is available in SC59 package.

Features



Power Consumption of 3.0mA at VCC = 5V for Energy Efficiency



Single Current Sourcing Output



Linear Voltage Output for Circuit Design Flexibility



Low-Noise Output Virtually Eliminates the Need for Filtering



A Stable and Accurate Output



Temperature Range: -40°C to +105°C



Responds to Either Positive or Negative Gauss



The Maximum Instantaneous Supply Voltage up to 50V



High ESD Rating: 3000V (Human Body Model)

2000V (Charged Device Model)



Small Low Profile SC59 Package



AEC-Q100 Grade 2 Qualified



Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free.

“Green” Device (Note 3)



The AH49FQ is suitable for automotive applications

requiring specific change control; this part is AEC-Q100

qualified, PPAP capable, and manufactured in IATF 16949

certified facilities.

https://www.diodes.com/quality/product-definitions/

Pin Assignments

SC59

Applications



Position sensing



Liquid level sensing



Weight sensing



Ferrous metal detectors



Vibration sensing



Rotary encoders



Magnetic code reading



Motor controls



Current sensing

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-

free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

3

2

1

GND

VCC

OUT

(Top View)