GX-MK18A-P Equivalent & Substitute Parts

Part Overview

The GX-MK18A-P is an inductive proximity sensor manufactured by Panasonic Industrial Automation Sales. This cylindrical M18-threaded sensor provides PNP-NO output with a 9.6mm sensing distance, designed for industrial automation applications requiring non-contact object detection. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement in existing installations.

Substiute Parts

GX-MK18A-P
Panasonic Industrial Automation SalesIn Stock: 939GX-MK18A-P Datasheet
GX-MK18A-P
Current Part
GX-318MLK-A-P
Panasonic Industrial Automation SalesIn Stock: 941GX-318MLK-A-P Datasheet
GX-318MLK-A-P
Similar

Key Parameters

Parameter GX-MK18A-P
Sensor Type Inductive
Sensing Distance 0.378" (9.6mm)
Output Type PNP-NO, 3-Wire
Voltage Supply 12V ~ 24V
Response Frequency 1kHz
Package / Case Cylinder, Threaded - M18
Ingress Protection IP68, IP69K
Operating Temperature -25°C ~ 70°C
Material - Body Nickel-Plated Brass
Termination Style Cable Leads
RoHS Status RoHS Compliant

Substitute Part Grouping Explanation

The GX-318MLK-A-P qualifies as a substitute for the GX-MK18A-P based on the following critical parameters:

Matching Parameters:

  • Sensor Type: Both are inductive proximity sensors
  • Output Type: Both provide PNP-NO, 3-Wire configuration
  • Package / Case: Both use Cylinder, Threaded - M18 form factor
  • Termination Style: Both use Cable Leads
  • Material - Body: Both use Nickel-Plated Brass
  • Ingress Protection: Both meet IP69K rating (GX-318MLK-A-P additionally supports IP67 and IP67G)

Differing Parameters:

  • Sensing Distance: GX-318MLK-A-P has 0.504" (12.8mm) versus 9.6mm
  • Voltage Supply: GX-318MLK-A-P supports 10V ~ 30V (broader range)
  • Response Frequency: GX-318MLK-A-P operates at 600Hz versus 1kHz
  • Operating Temperature: GX-318MLK-A-P range is -40°C ~ 85°C (extended)
  • Product Status: GX-318MLK-A-P is Active

Parameter Comparison

Parameter GX-MK18A-P GX-318MLK-A-P Compatibility Note
Sensor Type Inductive Inductive Match
Output Type PNP-NO, 3-Wire PNP-NO, 3-Wire Match
Sensing Distance 0.378" (9.6mm) 0.504" (12.8mm) Substitute has greater range
Voltage Supply 12V ~ 24V 10V ~ 30V Substitute supports wider range
Response Frequency 1kHz 600Hz Substitute has lower response rate
Package / Case Cylinder, Threaded - M18 Cylinder, Threaded - M18 Match
Ingress Protection IP68, IP69K IP67, IP67G, IP69K Both meet IP69K; substitute adds IP67 variants
Operating Temperature -25°C ~ 70°C -40°C ~ 85°C Substitute supports extended range
Material - Body Nickel-Plated Brass Nickel-Plated Brass Match
Termination Style Cable Leads Cable Leads Match
RoHS Status RoHS Compliant ROHS3 Compliant Both compliant; substitute meets newer standard

Engineering Selection Recommendations

The GX-318MLK-A-P is an active-status substitute for the obsolete GX-MK18A-P. Both sensors share identical electrical output characteristics (PNP-NO, 3-Wire), mechanical form factor (M18 threaded cylinder), and material composition (nickel-plated brass). The GX-318MLK-A-P meets current RoHS3 compliance requirements, whereas the original part meets RoHS Compliant standards.

Selection of the GX-318MLK-A-P requires verification that the increased sensing distance (12.8mm versus 9.6mm) and reduced response frequency (600Hz versus 1kHz) are acceptable for the specific application. The substitute's broader voltage supply range (10V ~ 30V) and extended operating temperature range (-40°C ~ 85°C) provide operational flexibility. Both parts maintain IP69K ingress protection rating, suitable for harsh industrial environments.

Frequently Asked Questions (FAQ)

Q: Can the GX-318MLK-A-P directly replace the GX-MK18A-P in existing installations?

A: Mechanical and electrical compatibility is confirmed. The M18 threaded cylinder form factor and PNP-NO, 3-Wire output enable direct socket replacement. However, the increased sensing distance (12.8mm versus 9.6mm) may require adjustment of component positioning or detection logic depending on application requirements.

Q: What is the impact of the different sensing distances?

A: The GX-318MLK-A-P detects objects at a greater distance (12.8mm) compared to the original part (9.6mm). Applications requiring precise short-range detection may need recalibration or repositioning of the sensor relative to target objects.

Q: Does the lower response frequency of the GX-318MLK-A-P affect performance?

A: The substitute operates at 600Hz versus the original 1kHz. This difference is relevant only for applications requiring detection of rapidly moving objects or high-speed switching cycles. Most industrial automation applications operate within the 600Hz response capability.

Q: Are there voltage supply considerations for substitution?

A: The GX-318MLK-A-P supports 10V ~ 30V, which encompasses the original part's 12V ~ 24V range. Existing power supply configurations remain compatible without modification.

Q: What are the packaging differences?

A: The GX-MK18A-P ships in standard packaging, while the GX-318MLK-A-P is packaged in a Box. This difference affects only logistics and storage; the sensor itself is identical in form factor and function.

Request Quote (Ships tomorrow)