How It Works Shipping Fee Terms of Use

Model MDS-Q5 Proximity Sensor


  • Positioning of the processing machines
  • Position detection of the moving table and metal pallets


  • Easy installation: square and can be installed directly on metal surfaces.
  • Molded type that can be used safely even in places where water may splash.
  • Small proximity sensor with a detection surface of 17 × 17 mm and a detection distance of 5 mm
    (Front side detection type)

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/Characteristics Graph

Rating / Performance

Model MDS-Q5 MDS-Q51
Detection Surface Front side detection
Detection Distance 5 mm ± 10 %
Hysteresis 20 % or less of the detection distance
Set Distance 0 to 4.0 mm
Standard Detection
Steel plate of 17 × 17 mm and 1 mm in thickness
Power Supply Voltage 12 V to 24 V DC (Operating voltage range : 10 V to 30 V DC)
Power Consumption 10 mA DC or less
Output 30 V DC 100 mA  DC or less NPN transistor open collector
Output Residual Voltage 1.5 V DC or less  (When load current is 100 mA DC and a 1-meter cord)
Operation Configuration Normally open
(On output with detection target)
Normally closed
(Off output with detection target)
Operation Display Red LED (Lit when On output)
Response Frequency 500 Hz or more
Operating Temperature
-25 to 70 °C (-25 to 70 °C during storage)
(Without dew condensation or freezing)
Operating Humidity
35 to 95% RH (35 to 95% RH during storage)(Without dew condensation)
Withstand Voltage 1 min at 1000 V AC  50/60 Hz (Between the live part and case)
Insulation Resistance 50 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, 3-core round cord of 0.2 mm² and insulation 1.1 mm and 1 m in length (Oil and heat resistant)
Weight Approx. 30 g

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

Characteristics Graph (Typical Example)




External Dimensions Diagram/Output Circuit

External Dimensions Diagram


Output Circuit



Usage Precautions

Influence of Surrounding Metal

If there are metal objects around the proximity sensor, leave at least the space indicated in the figure below between them and the sensor.


Mutual Interference

If you use two or more of the same product, separate them at least by the distances shown in the figure below to prevent reciprocal interference.
(Sensors with a different frequency are indicated with a B after the model name.)


Always use plain washers to tighten the case and use a torque of 0.59 N·cm (6 kgf·cm) or less.


See proximity sensor general usage precautions for other precautions.


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*For customized products or specifications, contact us using "Inquiry."
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Model Name Output configuration Frequency Standard Price Inventory Type Select
MDS-Q5 Normally open Normal type
17 USD
16 EUR
MDS-Q5B Normally open Different frequency type
17 USD
16 EUR
MDS-Q51 Normally closed Normal type
17 USD
16 EUR
MDS-Q51B Normally closed Different frequency type
17 USD
16 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.

Part number index

Product Comparison Table

confirmation of the estimate request content

Proximity sensor

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