AH1804-FA-7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Omnipolar Switch
Technology:	Hall Effect
Polarization:	Either
Sensing Range:	±6mT Trip, ±1.5mT Release
Test Condition:	25°C
Voltage - Supply:	2.5 V ~ 3.6 V
Current - Supply (Max):	12µA (Typ)
Current - Output (Max):	--
Output Type:	Push-Pull
Features:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	4-UDFN Exposed Pad
Supplier Device Package:	4-DFN-EP (1.2x1.6)

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AH1804-FA-7 Magnetic Sensor - Switch (Solid State)

Solid state magnetic sensors are an important part of many industrial, consumer and medical applications with increasing importance due to their accuracy. The AH1804-FA-7 is an advanced solid state magnetic sensor designed for applications such as motor protection, water level control, strain measurement and other precision measurements.

Application Field

The AH1804-FA-7 is designed for applications that require precise detection and measurement of magnetic fields such as motor protection and water level control. It is designed to be mounted on a remote guide or cable, allowing it to be used for remote measurements at greater distances than conventional reed switches. Its thin construction allows it to be used in confined spaces like inside structures or cables.The AH1804-FA-7 is also ideal for automotive applications where it can be used for tire pressure sensing, radiator fan control and misfire detection. In the medical field, it can be used to monitor vital signs and for point of care diagnostics. The AH1804-FA-7 is also suitable for industrial applications such as strain monitoring, vibration sensing and other process measurements.

Working Principle

The AH1804-FA-7 is a solid state magnetic sensor that uses a magnetic-sensitive Hall effect transistor to detect magnetic fields. The linear output of the Hall effect transistor is amplified and converted into a digital signal. The digital output changes state (high or low) in the presence of a magnetic field depending on the direction of the field and its strength.The AH1804-FA-7 can detect and respond to both alternating and distinct (AC and DC) magnetic fields, with a sensitivity range of 2-400mT depending on the model. The sensor also features an internal temperature compensation function that allows it to maintain a high level of sensitivity despite changes in environmental temperatures.

Conclusion

The AH1804-FA-7 is an advanced solid state magnetic sensor designed for use in motor protection, water level control, strain measurement and other precision measurements. It can detect and respond to both alternating and distinct magnetic fields with a sensitivity range of 2-400mT depending on the model. Its thin construction and temperature compensation function make it ideal for applications in confined spaces and harsh environments.

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