GX-8M-R Inductive Proximity Sensor - Equivalent & Substitute Parts

Part Overview

The GX-8M-R is an inductive proximity sensor manufactured by Panasonic Industrial Automation Sales, designed for non-contact detection of metallic objects. This M8 threaded cylinder sensor operates with NPN-NO output configuration and features a 0.6mm sensing distance. The product is classified as obsolete, making identification of compatible substitute components essential for system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

GX-8M-R

Panasonic Industrial Automation SalesIn Stock: 1112GX-8M-R Datasheet

Current PartRFQ

GX-308M-A-N-R

Panasonic Industrial Automation SalesIn Stock: 963GX-308M-A-N-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The GX-308M-A-N-R qualifies as a manufacturer-recommended substitute for the GX-8M-R based on the following critical parameters:

Maintained Compatibility Parameters:

• Sensor Type: Both are inductive proximity sensors
• Output Type: Both feature NPN-NO, 3-Wire configuration
• Voltage Supply Range: Both operate within 10V ~ 30V
• Package / Case: Both use Cylinder, Threaded - M8 form factor
• Shielding: Both are shielded designs
• Termination Style: Both use cable leads
• RoHS Compliance: Both are RoHS compliant
• Ingress Protection: Both meet IP67 standard

Allowable Parameter Variations:

• Sensing Distance: Increases from 0.6mm to 1.2mm (extended detection range)
• Response Frequency: Increases from 1kHz to 2kHz (faster response capability)
• Operating Temperature: Expands from -25°C ~ 70°C to -40°C ~ 85°C (wider operational envelope)
• Material - Body: Changes from Nickel-Plated Brass to Stainless Steel (enhanced corrosion resistance)
• Product Status: Transitions from Obsolete to Active (current availability)

Parameter Comparison

Engineering Selection Recommendations

The GX-308M-A-N-R is the manufacturer-designated substitute for the obsolete GX-8M-R. Selection of this substitute is supported by:

• Active product status ensuring ongoing availability and supply chain continuity
• Identical electrical interface (NPN-NO, 3-Wire output) and voltage supply range (10V ~ 30V)
• Identical mechanical form factor (M8 threaded cylinder) enabling direct mounting compatibility
• Maintained RoHS compliance for regulatory alignment
• Enhanced operational specifications including extended sensing distance (1.2mm vs 0.6mm), faster response frequency (2kHz vs 1kHz), and wider operating temperature range (-40°C ~ 85°C vs -25°C ~ 70°C)
• Stainless steel body construction providing improved corrosion resistance compared to nickel-plated brass
• Extended ingress protection certifications (IP67G, IP69K in addition to IP67)

Frequently Asked Questions (FAQ)

Q: Can the GX-308M-A-N-R directly replace the GX-8M-R in existing installations?

A: Yes. Both sensors share identical output type (NPN-NO, 3-Wire), voltage supply range (10V ~ 30V), M8 threaded cylinder package, and cable lead termination. The M8 threaded mounting is mechanically compatible, and the electrical interface requires no circuit modifications.

Q: What is the primary difference in sensing distance between these two models?

A: The GX-8M-R has a sensing distance of 0.6mm, while the GX-308M-A-N-R extends this to 1.2mm. This increased detection range in the substitute may require adjustment of sensor positioning in applications with tight spacing constraints.

Q: Are there temperature range considerations for substitution?

A: The GX-308M-A-N-R operates across -40°C ~ 85°C, compared to the GX-8M-R range of -25°C ~ 70°C. The substitute provides expanded capability for both lower and higher temperature environments, making it suitable for a broader range of industrial applications.

Q: Does the material change from nickel-plated brass to stainless steel affect compatibility?

A: No compatibility issues arise from this material change. Stainless steel construction in the GX-308M-A-N-R provides enhanced corrosion resistance, making it suitable for more demanding environmental conditions while maintaining identical electrical and mechanical performance.

Q: What is the significance of the additional ingress protection ratings on the substitute?

A: The GX-308M-A-N-R meets IP67, IP67G, and IP69K standards, compared to IP67 only on the GX-8M-R. These additional certifications indicate enhanced protection against high-pressure water jets and steam cleaning, expanding application suitability without compromising base IP67 compatibility.

Q: Is the faster response frequency (2kHz vs 1kHz) a concern for existing applications?

A: No. The increased response frequency of the GX-308M-A-N-R represents an enhancement. Applications designed for 1kHz response will operate without issue at 2kHz, as the substitute responds faster to detection events.