AH173-WG-7-B

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Latch
Technology:	Hall Effect
Polarization:	South Pole
Sensing Range:	6mT Trip, -6mT Release
Test Condition:	25°C
Voltage - Supply:	3 V ~ 20 V
Current - Supply (Max):	6mA
Current - Output (Max):	25mA
Output Type:	Open Collector
Features:	--
Operating Temperature:	-40°C ~ 125°C (TA)
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SC-59-3

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Introduction

Magnetic Sensors - Switches (Solid State) are an example of applied technology sited in a range of products and processes. The AH173-WG-7-B is a quality product offered by EPCOS, a member of the TDK Group, and this article provides information on the application field and working principle of this component.

AH173-WG-7-B sensoring principle

The AH173-WG-7-B is a Two-Wire Hall-effect switch, using a principle whereby a magnetic field is sensed, used to switch a power circuit at as pre-determined point. This type of switch is ideal for industrial and safety scenarios, due to reliable switching capabilities and voltage/current stability. The AH173-WG-7-B comprises of an integrated Hall-effect sensor and an output transistor, whereby a magnetic field is detected by an element in the IC package, and upon sensing, the transistor is switched. This provides determining and controlling of flux linkage that allows for switching operations often found in factory automation.The AH173-WG-7-B components includes voltage regulator, protection diode and power-on reset circuitry, this resulting in improved robustness, easier integration and faster installation. Also, as the switch is highly sensitive, it is also considered to be a maintenance-free device area, and is a popular choice when system longevity is a criteria.

AH173-WG-7-B key features

The AH173-WG-7-B offers several key features that make it a great option for a range of scenarios. With an operating voltage of 6 ~ 30 V DC and a DC supply current of 10mA, it can be easily integrated into many different project types.It also offers a current carrying capacity of 150mA, meaning it can work well with a range of power sources. The operating temperature is also quite wide, ranging from -40 to +85°C. With a switching distance of up to 16 mm, it can be used reliably over long distances and with a response time of just 5 µs, it can be used with time- and mission-critical applications.Furthermore, customizing the AH173-WG-7-B is quite simple. Generally, a single button can be used to adjust the operating range; a simple operation that can produce powerful results. The device is also Protected against a surge voltage of up to 60 V.

AH173-WG-7-B applications

The use cases for the AH173-WG-7-B are vast, ranging from industrial automation and safety applications to consumer electronics, and even medical devices.In industrial based Automation processes, such as Product Assembly and delivery, the AH173-WG-7-B operates as a switch that can detect changes in magnetic field and which can be used to control all types of electronics and mechanical machines and systems.In safety applications, AH173-WG-7-B can be used as part of anti-collision systems, to detect objects such as vehicles, people or animals, ensuring a safe and secure working environment.In consumer appliances, such as remote controls, the AH173-WG-7-B can detect changes in the magnetic field to enable/disable intricate functions such as the speed of a motor or the brightness of a bulb. It could also be used to control complex heating systems, as it is capable of quickly detecting a change in temperature.

Conclusion

The AH173-WG-7-B is an extremely versatile magnetic sensor-switch which has numerous applications for a variety of scenarios. With reliable switching capabilities, high sensitivity and robustness, it is a great choice for long-term and mission-critical applications. It\'s versatile and easily customizable nature make it an ideal choice for industrial automation, safety and consumer electronics applications.

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