Details

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BUY AR1021-I/SS https://www.utsource.net/itm/p/12598150.html

Parameter	Description	Value
Part Number	Full part number	AR1021-I/SS
Type	Device type	Hall Effect Sensor
Supply Voltage (VCC)	Operating supply voltage range	4.5 V to 5.5 V
Output Type	Output configuration	Digital Open Collector
Quiescent Supply Current (ICC)	Supply current at no load	8 mA (max)
Output Low Voltage (VOL)	Maximum output low voltage under load	0.4 V (max)
Magnetic Sensitivity (BOP)	Magnetic field strength to turn on	25 Gauss (typ)
Release Point (BRP)	Magnetic field strength to turn off	-25 Gauss (typ)
Hysteresis (BHYS)	Difference between BOP and BRP	50 Gauss (typ)
Operating Temperature Range (Toper)	Temperature range for operation	-40°C to 85°C
Storage Temperature Range (Tstg)	Temperature range for storage	-40°C to 150°C
Package Type	Encapsulation or package style	SOT-23
Lead Finish	Surface finish of leads	SnPb (60/40)
RoHS Compliance	Compliance with RoHS directive	Yes

Instructions:

1. Power Supply:

   • Connect the VCC pin to a stable power supply within the specified range (4.5 V to 5.5 V).
   • Connect the GND pin to the ground.

2. Output Connection:

   • Connect the OUT pin to a pull-up resistor (typically 1 kΩ to 10 kΩ) to the supply voltage.
   • The output will be low (0.4 V max) when the magnetic field exceeds the BOP threshold and high (open collector) otherwise.

3. Magnetic Field Application:

   • Place the sensor in a position where the magnetic field from a magnet or other source can be detected.
   • Ensure the magnetic field strength is within the operational range to trigger the sensor.

4. Temperature Considerations:

   • Operate the sensor within the specified temperature range (-40°C to 85°C) for optimal performance.
   • Store the sensor in a dry environment within the storage temperature range (-40°C to 150°C).

5. Handling:

   • Handle the sensor with care to avoid damage to the leads or the package.
   • Follow ESD (Electrostatic Discharge) precautions to prevent damage to the device.

6. Testing:

   • Test the sensor by applying a known magnetic field and verifying the output state using a multimeter or oscilloscope.

7. Mounting:

   • Mount the sensor on a PCB using standard SMT (Surface Mount Technology) techniques.
   • Ensure proper soldering and alignment during assembly.

(For reference only)