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Proximity NJK-5002C(NPN) Switch Hall Sensor

K-TECHNICS
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KSh600.00

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The NJK-5002C is a 3-wire, unipolar NPN Normally Open (NO) Hall Effect magnetic proximity switch. It triggers a digital low output signal whenever the south pole (S) of a permanent magnet comes within its 10mm detection range. 
Technical Specifications
  • Operating Voltage: 5V to 30V DC.
  • Detection Distance: 0 to 10 mm.
  • Output Current Limit: 150mA to 200mA maximum.
  • Output Type: NPN Open Collector, Normally Open (NO).
  • Form Factor: Cylindrical M12 threaded body.
  • Built-in Indicator: Integrated rear red LED. 
3-Wire Pinout & Wiring Configuration
The sensor features a standard industrial three-wire color code:
  • 🟫 Brown Wire: Positive Supply Voltage (+VCC).
  • 🟦 Blue Wire: Ground/Negative (GND).
  • ⬛ Black Wire: Signal Output Pin. 
How the NPN Output Works
Because this is an NPN Normally Open (NO) sensor, the output state behaves as follows: 
  1. Idle State (No Magnet): The internal open-collector transistor is OFF. The black wire floats high.
  2. Active State (Magnet Present): When a south-pole magnetic field is within 10mm, the transistor turns ON and switches the black output wire directly to Ground (0V). The red LED turns on.

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