IMM25188C Equivalent & Substitute Parts

Part Overview

The IMM25188C is an inductive proximity sensor manufactured by Crouzet, designed for non-contact detection applications with a 5mm sensing distance. This cylindrical M18-threaded sensor operates across a 10V to 30V supply range and provides NPN-NO output through a 3-wire connector interface. 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

IMM25188C

CrouzetIn Stock: 830IMM25188C Datasheet

Current PartRFQ

EI1805NPOSL-1

Carlo Gavazzi Inc.In Stock: 1056EI1805NPOSL-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The EI1805NPOSL-1 manufactured by Carlo Gavazzi Inc. qualifies as a functional equivalent based on the following alignment of critical parameters:

Matching Parameters:

• Sensor Type: Inductive
• Sensing Distance: 0.197" (5mm)
• Output Type: NPN-NO, 3-Wire
• Package / Case: Cylinder, Threaded - M18
• Shielding: Unshielded
• Ingress Protection: IP67
• Operating Temperature: -25°C ~ 70°C
• Termination Style: Connector
• Indicator: LED

Supply Voltage Compatibility: The IMM25188C operates at 10V ~ 30V, while the EI1805NPOSL-1 operates at 12V ~ 36V. The overlap range of 12V ~ 30V ensures functional compatibility in most industrial applications within this common operating window.

Parameter Comparison

Engineering Selection Recommendations

The EI1805NPOSL-1 is a direct functional substitute for the obsolete IMM25188C. Selection of this alternative is supported by:

Product Status: The EI1805NPOSL-1 maintains active product status with current manufacturing and distribution support, eliminating supply chain risk associated with the obsolete IMM25188C.

Compliance & Certifications: Both sensors carry RoHS compliance and equivalent ECCN/HTSUS classifications (EAR99 / 8543.70.9860), ensuring regulatory alignment for industrial applications.

Mechanical & Electrical Compatibility: Identical M18 threaded cylindrical form factor, connector termination, and NPN-NO 3-wire output enable direct mechanical and electrical integration without circuit modification.

Operating Envelope: The 12V ~ 30V overlap range of the EI1805NPOSL-1 covers standard industrial 24V DC applications, the most common operating voltage for inductive proximity sensors in legacy systems.

Material Consideration: The EI1805NPOSL-1 body material is stainless steel versus nickel-plated brass in the original. Stainless steel provides enhanced corrosion resistance in harsh environments while maintaining equivalent mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the EI1805NPOSL-1 directly replace the IMM25188C without circuit modifications?

A: Yes. Both sensors share identical output type (NPN-NO, 3-Wire), connector termination, and operating voltage overlap (12V ~ 30V). Direct substitution is possible in applications operating within the 12V ~ 30V range without circuit redesign.

Q: What is the voltage compatibility window for substitution?

A: The IMM25188C operates at 10V ~ 30V and the EI1805NPOSL-1 at 12V ~ 36V. The guaranteed overlap is 12V ~ 30V. Applications operating below 12V require verification of the original system voltage specification before substitution.

Q: Are there differences in sensing performance between these sensors?

A: Both sensors provide identical 5mm sensing distance and unshielded inductive detection. The EI1805NPOSL-1 specifies a 500Hz response frequency; the IMM25188C response frequency is not provided in available documentation. This difference is not significant for standard industrial proximity sensing applications.

Q: Does the material difference (nickel-plated brass vs. stainless steel) affect compatibility?

A: No. The material difference does not affect electrical or mechanical compatibility. Stainless steel construction in the EI1805NPOSL-1 offers superior corrosion resistance, making it suitable for equivalent or more demanding environmental conditions than the original.

Q: What is the ingress protection rating difference?

A: Both sensors meet IP67. The EI1805NPOSL-1 additionally meets NEMA 1, 3, 4, 6, and 13 standards, providing broader environmental certification without reducing compatibility.

Q: Is the M18 threaded mounting identical between both sensors?

A: Yes. Both sensors use identical Cylinder, Threaded - M18 package specifications, ensuring mechanical interchangeability in existing mounting hardware.