GX-M18B-Z Equivalent & Substitute Parts

Part Overview

The GX-M18B-Z is an inductive proximity sensor manufactured by Panasonic Industrial Automation Sales, designed for non-contact detection applications with a 4mm sensing distance. This sensor features NPN-NC output configuration, shielded construction, and operates across a 12V to 24V supply range. The product is currently classified as obsolete, making identification of compatible substitute parts essential for system maintenance and component procurement.

Substiute Parts

GX-M18B-Z

Panasonic Industrial Automation SalesIn Stock: 897GX-M18B-Z Datasheet

Current PartRFQ

GX-318M-B-N-Z

Panasonic Industrial Automation SalesIn Stock: 1180GX-318M-B-N-Z Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The GX-318M-B-N-Z qualifies as a direct substitute for the GX-M18B-Z based on the following critical parameters:

Matching Parameters:

• Sensor Type: Inductive
• Sensing Distance: 0.157" (4mm)
• Output Type: NPN-NC, 3-Wire
• Package / Case: Cylinder, Threaded - M18
• Shielding: Shielded
• Material - Body: Nickel-Plated Brass
• Termination Style: Connector
• Ingress Protection: IP67, IP69K

Enhanced Parameters: The substitute part offers improved specifications in voltage supply range (10V ~ 30V vs. 12V ~ 24V) and extended operating temperature range (-40°C ~ 85°C vs. -25°C ~ 70°C), providing greater operational flexibility while maintaining core functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The GX-318M-B-N-Z is the designated substitute for the obsolete GX-M18B-Z. Both sensors maintain identical core specifications for sensing distance, output configuration, mechanical form factor, and environmental protection ratings. The substitute part is currently in active production status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment.

The GX-318M-B-N-Z provides extended operational parameters that are backward-compatible with the original design envelope. The wider voltage supply range (10V ~ 30V) accommodates the original 12V ~ 24V requirement, and the expanded operating temperature range (-40°C ~ 85°C) exceeds the original specification (-25°C ~ 70°C). These enhancements do not introduce incompatibility; they provide additional operational margin.

The response frequency difference (600Hz vs. 2kHz) reflects design evolution in the GX-300 series. For applications where the original 2kHz response frequency was specified, this parameter should be evaluated against actual system switching requirements.

Frequently Asked Questions (FAQ)

Q: Can the GX-318M-B-N-Z directly replace the GX-M18B-Z in existing installations?

A: Yes. Both sensors share identical sensing distance (4mm), output type (NPN-NC, 3-Wire), mechanical package (M18 threaded cylinder), and environmental protection ratings (IP67, IP69K). The M8 connector termination on the substitute part is compatible with the connector-based termination style of the original.

Q: What is the significance of the response frequency difference?

A: The GX-M18B-Z operates at 2kHz response frequency, while the GX-318M-B-N-Z operates at 600Hz. Response frequency determines the maximum switching speed of the sensor output. For applications requiring detection of rapidly moving objects or high-speed switching cycles, the lower response frequency of the substitute should be evaluated against system requirements.

Q: Are there voltage supply compatibility concerns?

A: No. The GX-318M-B-N-Z accepts 10V ~ 30V input, which encompasses the original 12V ~ 24V operating range. Systems powered within the original voltage specification will operate without modification.

Q: What is the difference between IP67, IP67G, and IP69K ratings?

A: Both sensors meet IP67 and IP69K protection standards. The substitute part additionally lists IP67G certification. All three ratings indicate high-level ingress protection suitable for industrial environments with water and dust exposure.

Q: Does the extended operating temperature range affect compatibility?

A: No. The GX-318M-B-N-Z operating range (-40°C ~ 85°C) encompasses the original specification (-25°C ~ 70°C). Systems operating within the original temperature envelope will function without modification.

Q: What is the significance of ROHS3 compliance versus RoHS compliance?

A: Both certifications indicate restriction of hazardous substances. ROHS3 represents the current regulatory standard. The substitute part's ROHS3 compliance ensures alignment with current environmental and regulatory requirements.