Capacitive Proximity Sensor Switch - LJC18A3-B-Z/BY (PNP)

Model No.: LJC18A3-B-Z/BY Current Type: DC Operating Form: PNP Contact Form: NO Features: Proximity switch, also known as contactless proximity switch, is an ideal electronic on-off sensor. It has sensing performance, reliable action, stable performance and fast frequency response. Shockproof, corrosion resistance, strong anti-interference capability. Non-contact detection, does not affect the operating conditions of the measured object. Sealed structure, good moisture and dust resistance, strong work reliability. No mechanical wear and fatigue damage, long working life. Widely used in machine tools, metallurgy, chemical, textile and printing industries. Specification: Material: brass plated nickel shell, ABS detection surface Weight: 111g/3.9oz Detection distance: 10mm ±10% Set distance: 0-8mm Lag distance: less than 10% of the detection distance Detection object: any dielectric substance Standard test object: iron SPCC 50*50*1mm Response frequency: DC:0.5kHz AC:25Hz Power supply voltage: DC 12-24V (6-36V) ripple (p-p) less than 10% (DC type) Withstand voltage: AC1000V 50/60Hz 1min between the charging part and the shell Voltage influence: within the rated power supply voltage range of ±15%, within the detection range of ±10% when it is the rated power supply voltage value Current consumption: N.P type: below 13mA D type: below 0.8mA A type: below 1.7mA Control output: N.P type: below 300mA D type: below 200mA A type: below 400mA Circuit protection: N.P.D type: reverse connection protection, surge absorption, load short circuit protection A Type: surge absorption Ambient temperature: each - 30 to + 65 ? action and save Ambient humidity: 35-95% RH each (no ice, no frost) action and save Temperature influence: Temperature range -30 to + 65 ? , +23 ?, ± 15% detection distance; Temperature range -25 to + 60 ?, +23 ?, ± 10% detection distance. Insulation resistance: more than 50m? (DC500 megger) charge between parts and the shell Wiring Guide (PNP 3-Wire): Brown – V+ (Power Supply +) Blue – V- (Power Ground) Black – Signal Output (connect to PLC, relay, microcontroller input, etc.) ✅ Applications: Liquid level sensing (through plastic/glass) Non-contact object detection Industrial automation CNC machinery Packing machines Smart electronics projects