GX-MK12B-Z Equivalent & Substitute Parts

Part Overview

The GX-MK12B-Z is an inductive proximity sensor manufactured by Panasonic Industrial Automation Sales, designed for non-contact detection applications in industrial automation. This cylindrical M12-threaded sensor operates with NPN-NC output configuration and features a 5.6mm sensing distance. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and component sourcing in ongoing applications.

Substiute Parts

GX-MK12B-Z

Panasonic Industrial Automation SalesIn Stock: 1231GX-MK12B-Z Datasheet

Current PartRFQ

GX-312MLK-B-N-Z

Panasonic Industrial Automation SalesIn Stock: 756GX-312MLK-B-N-Z Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The GX-312MLK-B-N-Z qualifies as a functional substitute for the GX-MK12B-Z based on the following critical parameters:

Core Compatibility Criteria:

• Sensor Type: Both are inductive proximity sensors
• Output Configuration: Both feature NPN-NC, 3-Wire output
• Package / Case: Both use Cylinder, Threaded - M12 form factor
• Termination Style: Both employ connector-based termination
• Ingress Protection: Both meet IP67 and IP69K ratings
• Material - Body: Both utilize Nickel-Plated Brass construction
• Shielding: Both are unshielded designs
• Indicator: Both include LED indication
• RoHS Compliance: Both are RoHS Compliant

Allowable Parameter Variations:

• Sensing Distance: GX-312MLK-B-N-Z operates at 0.252" (6.4mm) versus 0.22" (5.6mm) for the original part. This represents a 14% increase in detection range, acceptable for applications where the sensing distance does not represent a critical constraint.
• Response Frequency: GX-312MLK-B-N-Z operates at 1.5kHz versus 2.5kHz for the original part. This lower frequency is suitable for standard industrial detection applications.
• Voltage Supply Range: GX-312MLK-B-N-Z accepts 10V ~ 30V versus 12V ~ 24V for the original part. The wider input range provides enhanced compatibility with varied power supply configurations.
• Operating Temperature: GX-312MLK-B-N-Z operates across -40°C ~ 85°C versus -25°C ~ 70°C for the original part. The extended temperature range provides superior performance in extreme environmental conditions.

Parameter Comparison

Engineering Selection Recommendations

The GX-312MLK-B-N-Z is an active product from the Panasonic GX-300 series, whereas the GX-MK12B-Z is classified as obsolete. For applications currently utilizing the GX-MK12B-Z, the GX-312MLK-B-N-Z provides continued component availability and supply chain continuity. Both parts maintain RoHS compliance and identical ingress protection ratings, ensuring regulatory and environmental performance parity.

The GX-312MLK-B-N-Z offers operational advantages including an extended voltage supply range (10V ~ 30V) and broader operating temperature span (-40°C ~ 85°C), supporting deployment in more demanding industrial environments. The increased sensing distance (6.4mm versus 5.6mm) and lower response frequency (1.5kHz versus 2.5kHz) are suitable for standard industrial proximity detection applications where these parameter variations do not conflict with system requirements.

Frequently Asked Questions (FAQ)

Q: Can the GX-312MLK-B-N-Z directly replace the GX-MK12B-Z in existing installations?

A: Yes, provided the application does not require the specific sensing distance of 5.6mm or the 2.5kHz response frequency of the original part. Both sensors share identical output configuration (NPN-NC, 3-Wire), M12 threaded cylindrical package, connector termination, and ingress protection ratings. Mechanical mounting and electrical connection are compatible.

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

A: The GX-312MLK-B-N-Z operates at 0.252" (6.4mm) sensing distance compared to 0.22" (5.6mm) for the GX-MK12B-Z. This represents a 14% increase in detection range. Applications requiring detection at distances less than 5.6mm may require evaluation of the substitute's performance characteristics.

Q: Are there temperature or voltage supply considerations when substituting?

A: The GX-312MLK-B-N-Z supports a wider voltage range (10V ~ 30V versus 12V ~ 24V) and extended operating temperature (-40°C ~ 85°C versus -25°C ~ 70°C). These expanded specifications provide enhanced compatibility with varied power supply configurations and extreme environmental conditions. No derating or additional thermal management is required for standard industrial applications.

Q: Do both sensors maintain the same ingress protection rating?

A: Yes. Both the GX-MK12B-Z and GX-312MLK-B-N-Z are rated IP67 and IP69K, ensuring identical environmental sealing and protection against dust and high-pressure water jets.

Q: What is the response frequency difference, and does it affect application suitability?

A: The GX-312MLK-B-N-Z operates at 1.5kHz response frequency versus 2.5kHz for the GX-MK12B-Z. This lower frequency is suitable for standard industrial detection applications. Applications requiring detection of rapidly moving objects at frequencies exceeding 1.5kHz should be evaluated against specific motion parameters.