GX-MK18B-Z Equivalent & Substitute Parts

Part Overview

The GX-MK18B-Z is an inductive proximity sensor manufactured by Panasonic Industrial Automation Sales, designed for industrial automation applications requiring non-contact object detection. This cylindrical M18-threaded sensor operates with NPN-NC output configuration and provides a sensing distance of 9.6mm. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and component sourcing in ongoing production environments.

Substiute Parts

GX-MK18B-Z

Panasonic Industrial Automation SalesIn Stock: 926GX-MK18B-Z Datasheet

Current PartRFQ

GX-318MLK-B-N-Z

Panasonic Industrial Automation SalesIn Stock: 1046GX-318MLK-B-N-Z Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The GX-318MLK-B-N-Z qualifies as a functional substitute for the GX-MK18B-Z based on the following critical parameters that determine substitutability:

Matching Parameters:

• Sensor Type: Both are inductive proximity sensors
• Output Type: Both provide NPN-NC, 3-Wire configuration
• Package / Case: Both use Cylinder, Threaded - M18 form factor
• Termination Style: Both employ connector-based termination
• Material - Body: Both feature nickel-plated brass construction
• Shielding: Both are unshielded designs
• Ingress Protection: Both meet IP67 and IP69K ratings
• Indicator: Both include LED indication
• RoHS Status: Both are RoHS compliant

Allowable Parameter Variations:

• Sensing Distance: 9.6mm (GX-MK18B-Z) versus 12.8mm (GX-318MLK-B-N-Z) — acceptable variance for applications where detection range can accommodate the increased distance
• Response Frequency: 1kHz (GX-MK18B-Z) versus 600Hz (GX-318MLK-B-N-Z) — acceptable for applications not requiring the higher switching speed
• Voltage Supply: 12V ~ 24V (GX-MK18B-Z) versus 10V ~ 30V (GX-318MLK-B-N-Z) — substitute provides broader voltage compatibility
• Operating Temperature: -25°C ~ 70°C (GX-MK18B-Z) versus -40°C ~ 85°C (GX-318MLK-B-N-Z) — substitute provides extended temperature range

Parameter Comparison

Engineering Selection Recommendations

The GX-318MLK-B-N-Z is an active-status substitute for the obsolete GX-MK18B-Z. Both sensors maintain RoHS compliance and identical electrical output characteristics (NPN-NC, 3-Wire). The substitute provides enhanced specifications in voltage supply range (10V ~ 30V versus 12V ~ 24V) and operating temperature envelope (-40°C ~ 85°C versus -25°C ~ 70°C), making it suitable for applications with broader environmental requirements.

Selection of the GX-318MLK-B-N-Z requires verification that the increased sensing distance (12.8mm versus 9.6mm) and reduced response frequency (600Hz versus 1kHz) are compatible with the target application's detection and switching requirements. The identical M18 threaded cylindrical form factor and connector termination ensure mechanical and electrical interface compatibility with existing mounting and wiring infrastructure.

Frequently Asked Questions (FAQ)

Q: Can the GX-318MLK-B-N-Z directly replace the GX-MK18B-Z in existing installations?

A: Direct replacement is possible if the application tolerates the increased sensing distance (12.8mm versus 9.6mm) and lower response frequency (600Hz versus 1kHz). The identical M18 threaded form factor, connector termination, and NPN-NC output configuration ensure mechanical and electrical compatibility. Verify that detection range and switching speed requirements are met before implementation.

Q: What is the primary difference between these two sensors?

A: The GX-318MLK-B-N-Z provides a longer sensing distance (12.8mm) and lower response frequency (600Hz) compared to the GX-MK18B-Z (9.6mm, 1kHz). The substitute also offers broader voltage supply (10V ~ 30V) and operating temperature (-40°C ~ 85°C) ranges. Both sensors share identical output type, package form factor, and environmental protection ratings.

Q: Are there any compatibility concerns with the connector termination?

A: Both sensors use connector-based termination with identical M18 threaded cylindrical packaging. No compatibility issues exist regarding mechanical mounting or connector interface. Existing wiring harnesses and mounting fixtures designed for the GX-MK18B-Z are compatible with the GX-318MLK-B-N-Z.

Q: How does the increased sensing distance affect application performance?

A: The GX-318MLK-B-N-Z detects objects at distances up to 12.8mm, compared to 9.6mm for the GX-MK18B-Z. This 33% increase in range may require adjustment of sensor positioning or detection logic if the application relies on precise proximity thresholds. Applications with flexible detection distance requirements will experience no performance impact.

Q: Is the GX-318MLK-B-N-Z suitable for high-speed switching applications?

A: The GX-318MLK-B-N-Z operates at 600Hz response frequency, lower than the GX-MK18B-Z (1kHz). Applications requiring switching speeds above 600Hz should not use this substitute. Verify that the target application's switching frequency requirements do not exceed 600Hz before selection.