AH49F

Document number: DS36518

Rev. 2 - 2

1 of 12

www.diodes.com

June 2014

© Diodes Incorporated

AH49F

A Product Line of

Diodes Incorporated

LINEAR HALL EFFECT IC

Description

The AH49F 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 commercial, consumer,

and industrial environments.

The AH49F is available in standard TO-92S, SC59 and U-DFN2020-6

packages.

Features





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: 6000V (Human Body Model)

600V (Machine Model)



Small low profile U-DFN2020-6 and Industry Standard SC59 and

TO-92S Packages



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



Halogen and Antimony Free.

“Green” Device (Note 3)

Pin Assignments

(Front View)

TO-92S

SC59

(Top View)

1

OUT

NC

VCC

NC

NC

GND

2

3

4

5

6

U-DFN2020-6

Applications



Position Sensing



Liquid Level Sensing



Weight Sensing



Ferrous Metal Detector



Vibration Sensing



Rotary Encoder



Magnetic Code Reading



Motor Control



Current Sensing

Notes:

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

2. See http://www.diodes.com/quality/lead_free.html

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.

1

2

3

VCC

GND

OUT

3

2

1

GND

VCC

OUT

(Top View)