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Model MGD-HQW501 High-voltage Rated Bipolar Detection Electromagnetic Sensor


  • Magnet detection
  • Automatic guided vehicles guidance
  • As it can be used to drive voltage 48 V DC (or less) following electric forklift, refrigeration car, freezer car, etc


  • Uses a magnetism focusing construction (patented) that makes it particularly strong against ambient temperatures.
  • It can be used in a wide range of supply voltage 15 V to 65 V DC.
  • The magnetism focusing construction is very useful as the sensor can detect at a long distance targets with a wide surface but a weak magnetic flux, like belt-shaped rubber magnets.
  • The detected poles (N-pole and S-pole) are output separately.
  • Equipped with protection diodes to protect the sensor from reverse connection to the power supply and output surges.
  • The LEDs displaying the operation (red for N pole detection and green for S pole detection) make it easy to grasp the operation condition.
  • Because of the high power supply voltage specification, it can also be used in the battery voltage 48 V DC.

International Standards

  • Our products do not have overseas safety regulations such as CE mark, UL standard, EN standard etc.
  • Products is compliant to the RoHS directive.

* Please consult about "change of specification" and "request of specification" of the product.


Rating / Performance

Model MGD-HQW501
Detection Surface Front side detection
Detection Sensitivity 500 μT ±150 μT (With a rubber plate magnet of 30 × 30 × t2 mm)
Power Supply Voltage 24 V to 48 V DC (Operating voltage range : 15 V to 65 V DC), ripple 1% or less
Power Consumption 15 mA DC or less
Output Nch MOSFET open drain 65 V DC 200 mA DC or less
Output Residual Voltage 0.5 V DC or less (Load current  200 mA DC)
Operation Configuration Normally open (On with magnetic field)
Operation Display LED : Red with N pole detection, Green with S pole detection
Response Time 300 μs or less
Hysteresis 100 μT or less (With a rubber plate magnet of 30 × 30 × t2 mm)
Detection Polarity N-pole and S-pole
Reference Detection
50 mm (*the MG50-1 series)
Operating Set Distance 5 to 35 mm (*the MG50-1 series)
Operating Temperature
-30 to 70 °C (-30 to 70 °C during storage)
(Without dew condensation or freezing)
Operating Humidity
95% RH or less (95% RH or less during storage) (Without dew condensation)
Withstand Voltage 1 min at 500 V AC 50/60 Hz (Between the live part and case)
Insulation Resistance 100 MΩ or more measured with an ohmmeter at 500 V DC
(Between the live part and case)
Vibration Resistance Durability: 2 hours in each X, Y, Z direction at 10 to 55 Hz and with peak-to-peak amplitude of 1.5 mm (At power off)
Shock Resistance Durability: 3 times at 500 m/s² (approx. 50 G) in each X, Y, Z direction
(At power off)
Protection Rating IP67
Case Material ABS
Cable ø4, 4-core round cord of 0.3 mm² and 1 m in length (Oil and heat resistant)
Weight Approx. 35 g

*For a detailed specification of the other, please refer to specifications.

External Dimensions Diagram / Output Circuit

External Dimensions Diagram


Output Circuit



Usage Precautions

Usage Precautions

  • If the object on which the electromagnetic sensor is installed is made of magnetic metal, the detection sensitivity may greatly vary. In such a case, place it at 40 mm above the installation surface and verify the detection characteristics before using the sensor.
  • If there is magnetic metal with residual magnetism in the surroundings of the electromagnetic sensor installation location, the detection characteristics may greatly vary. Verify the detection characteristics before using the sensor.
  • See Electromagnetic sensor general usage precautions for other precautions.


Detection area diagram

Precautions with detection area diagram and reverse polarity flux (typical example) 


*If the MGD-HQW501 is used at a height of 20 m or less, the wrong pole may be detected.

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Model Name Operating sensitivity Operation Configuration Standard Price Inventory Type Select
MGD-HQW501 0.5 mT Normally open
38 USD
35 EUR

STD Shipping is available immediately (on the day of order)

WIP Shipping is available within 1 to 3 weeks

BTO Shipping is available within 10 to 18 weeks

NOTE: The above information shows the typical delivery time. For actual delivery time, please confirm us as it depends on our business days and/or product quantities.

In the case of the quote request and order, please be sure to check the Terms and Conditions.
If you have made the procedure of quote request and order, it assumes that agree to the Terms and Conditions.

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