The SS49E is a linear hall-effect sensor. It can measure both north and south polarity of a magnetic field and the relative strength of the field.

The output pin provides an analog output representing if a magnetic field is present, how strong a present field is, and if it is a north or south polar field. If no magnetic field is present the SS49E will output a voltage around half of the source voltage. If the south pole of a magnet is placed near the labeled side of the SS49E (the side with text etched on it), then the output voltage will linearly ramp up towards the source voltage. The amount of the output voltage increase is proportional to the strength of the magnetic field applied. If the north pole of a magnet is placed near the labeled side of the SS49E then the output voltage will linearly ramp down toward the ground voltage relative to the strength of the magnetic field. For example, if you power the SS49E with 5V and there is no magnetic field present then the sensor's output will be around 2.5V. In the same example, if you place the south pole of a strong magnet near the labeled side of the sensor, then the output voltage will go up to around 4.2V and if you placed the north pole of a strong magnet near the labeled side of the sensor, then the output voltage will drop to around 0.86V.

You can easily use the SS49E with a microcontroller (such as Arduino) or single board computer (SBC). Just provide power to the GND and VCC pins of the SS49E and connect its output pin to an analog input on your microcontroller or SBC, which you can then measure the analog voltage of to calculate the sensor's measured data.

So why use a Hall-effect sensor? Hall-effect sensors are immune to most environmental disturbances that may affect optical or mechanical devices, such as vibration, moisture, dirt or oil films, ambient lighting, etc. Also, they are a simple way to measure the presence of a magnet and even electrical current running through a conductor.

Product Contents:

• 1 — SS49E Linear Hall-Effect Sensor

Specifications:

Supply Voltage	3 to 6.5 V
Max Output Current	20 mA
Quiescent Output Voltage	1/2 of VCC
Sensitivity	2.5 mV/G
Minimum Output Voltage	0.86 V
Max Output Voltage	4.21 V
Dimensions (Including Pins)
Length	17.5 mm (0.69")
Width	4 mm (0.16")
Thick	1.52 mm (0.06")
Weight	0.11 g (0.004 oz)

Resources:

• SS49E Datasheet

How SS49E Linear Hall Effect Sensor Works ?

The SS49E Linear Hall Effect Sensor is a specialized electronic component designed to detect changes in magnetic fields and convert them into electrical signals. Here's how it works:

1. Hall Effect Principle: The operation of the SS49E sensor is based on the Hall Effect principle. When a magnetic field is applied perpendicular to the sensor's surface, it generates a voltage difference across the sensor's output terminals.

2. Sensitive Material: Inside the sensor, there is a semiconductor material that is sensitive to magnetic fields. When a magnetic field is present, it causes the charge carriers within the semiconductor to deflect, creating a voltage potential difference proportional to the strength of the magnetic field.

3. Output Signal: The voltage output of the sensor varies linearly with changes in the magnetic field strength. As the magnetic field increases or decreases, the output voltage of the sensor changes accordingly. This output signal can be analog or digital, depending on the sensor's configuration.

4. Voltage Regulation: The SS49E sensor operates within a specified voltage range, typically between 3Vdc and 12Vdc. It consumes a low current of around 5mA at 5Vdc, making it suitable for low-power applications.

5. Temperature and ESD Performance: The sensor is designed to operate reliably across a wide temperature range, from -40°C to 150°C, making it suitable for use in harsh environments. Additionally, it offers high Electrostatic Discharge (ESD) performance, with protection up to ±4 kV.

6. Polarity Sensitivity: The SS49E sensor is sensitive to the direction of the magnetic field. It reacts differently to magnetic fields from the Antarctic and Arctic regions, allowing for precise detection and differentiation of magnetic polarities.

frequently asked questions (FAQ):

1. Q: What is the SS49E Linear Hall Effect Sensor, and what does it do? A: The SS49E is a specialized electronic sensor that detects changes in magnetic fields and converts them into electrical signals. It is commonly used to measure the strength and polarity of magnetic fields in various applications.

2. Q: How does the SS49E sensor differ from other Hall Effect sensors? A: The SS49E sensor offers high sensitivity and accuracy in detecting changes in magnetic fields. It operates within a wide voltage range of 3Vdc to 12Vdc and has low current consumption, making it suitable for a variety of low-power applications.

3. Q: What is the temperature range of the SS49E sensor, and is it suitable for outdoor use? A: The SS49E sensor operates reliably within a wide temperature range of -40°C to 150°C, making it suitable for both indoor and outdoor applications. Its robust design ensures performance even in harsh environmental conditions.

4. Q: Can the SS49E sensor differentiate between magnetic polarities? A: Yes, the SS49E sensor reacts differently to magnetic fields from the Antarctic and Arctic regions, allowing it to detect and differentiate between magnetic polarities. This feature enhances its versatility in various sensing applications.

5. Q: What are the ESD protection capabilities of the SS49E sensor? A: The SS49E sensor offers high Electrostatic Discharge (ESD) performance, with protection up to ±4 kV. This ensures reliable operation and protection against damage from electrostatic discharge events, enhancing the sensor's durability and longevity.

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