IMM26188C Equivalent & Substitute Parts

Part Overview

The IMM26188C is an inductive proximity sensor manufactured by Crouzet, designed for industrial sensing applications requiring detection at 8mm sensing distance. This cylindrical M18-threaded sensor features NPN-NC output configuration with 3-wire connectivity and operates across a 10V to 30V supply range. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and component sourcing in legacy installations.

Substiute Parts

IMM26188C

CrouzetIn Stock: 956IMM26188C Datasheet

Current PartRFQ

EI1808NPOSL-1

Carlo Gavazzi Inc.In Stock: 976EI1808NPOSL-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IMM26188C is determined by strict alignment of the following critical parameters:

• Sensor Type: Must be Inductive
• Sensing Distance: Must be 0.315" (8mm)
• Package / Case: Must be Cylinder, Threaded - M18
• Termination Style: Must be Connector
• Ingress Protection: Must meet or exceed IP67
• Operating Temperature Range: Must encompass -25°C ~ 70°C
• Supply Voltage Compatibility: Substitute voltage range must overlap with or extend the 10V ~ 30V requirement

The identified substitute, EI1808NPOSL-1 (Carlo Gavazzi Inc.), satisfies these core mechanical and electrical compatibility criteria. However, a functional difference exists in the output configuration: the substitute provides NPN-NO (Normally Open) output versus the original NPN-NC (Normally Closed) output. This distinction requires circuit-level evaluation during substitution.

Parameter Comparison

Engineering Selection Recommendations

The EI1808NPOSL-1 provides mechanical and thermal compatibility with the IMM26188C. The substitute operates within an extended supply voltage range (12V ~ 36V), which encompasses the original specification (10V ~ 30V). Both sensors maintain identical sensing distance, M18 threaded form factor, and IP67 environmental protection.

The primary consideration for substitution is the output logic inversion: the original IMM26188C operates as NPN-NC (output active low when target detected), while the EI1808NPOSL-1 operates as NPN-NO (output active high when target detected). This functional difference requires verification of downstream circuit logic and control system configuration to ensure proper operation.

The EI1808NPOSL-1 is classified as Active product status, ensuring continued availability and support. The substitute features stainless steel body construction versus the nickel-plated brass of the original, providing enhanced corrosion resistance in certain industrial environments.

Frequently Asked Questions (FAQ)

Q: Can the EI1808NPOSL-1 directly replace the IMM26188C without circuit modification?

A: Physical and electrical interface compatibility exists; however, the output logic is inverted (NPN-NO versus NPN-NC). Direct replacement without circuit reconfiguration will result in inverted signal behavior. Control logic must be evaluated and adjusted accordingly.

Q: Are the supply voltage ranges compatible?

A: The EI1808NPOSL-1 supply range (12V ~ 36V) overlaps with and extends beyond the IMM26188C range (10V ~ 30V). Systems operating within 12V ~ 30V will function with both sensors. Systems operating below 12V require verification of substitute performance.

Q: What is the significance of the material difference (Nickel-Plated Brass versus Stainless Steel)?

A: Both materials provide adequate environmental protection for IP67-rated applications. Stainless steel offers superior corrosion resistance in aggressive chemical or marine environments. Nickel-plated brass is suitable for standard industrial applications. Material selection depends on specific environmental conditions.

Q: Do both sensors share the same M18 threaded mounting?

A: Yes. Both the IMM26188C and EI1808NPOSL-1 feature identical Cylinder, Threaded - M18 package configuration, enabling direct mechanical substitution without mounting modification.

Q: What is the response frequency specification, and why does only the substitute list this parameter?

A: Response frequency (400Hz for the EI1808NPOSL-1) defines the maximum switching speed of the sensor. The IMM26188C does not specify this parameter in available documentation. For applications requiring high-speed switching or pulse detection, the 400Hz specification of the substitute should be verified against system requirements.

Q: Are there compliance or certification differences between the two sensors?

A: Both sensors carry EAR99 ECCN classification and identical HTSUS codes. The EI1808NPOSL-1 provides NEMA 1,3,4,6,13 certification in addition to IP67, offering broader environmental compliance documentation. The IMM26188C is RoHS Compliant; the EI1808NPOSL-1 is REACH Unaffected.