IMM3684P Inductive Proximity Sensor - Equivalent & Substitute Parts

Part Overview

The IMM3684P is a cylindrical inductive proximity sensor manufactured by Crouzet, designed for non-contact detection of metallic objects at a 4mm sensing distance. This sensor features PNP-NC output configuration with 3-wire termination and operates across a 10V to 30V supply voltage range. The product is classified as obsolete, making identification of compatible substitute components essential for system maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

IMM3684P
CrouzetIn Stock: 781IMM3684P Datasheet
IMM3684P
Current Part
E2B-S08KN04-MC-B2
Omron Automation and SafetyIn Stock: 915E2B-S08KN04-MC-B2 Datasheet
E2B-S08KN04-MC-B2
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Key Parameters

Parameter Value
Manufacturer Part Number IMM3684P
Manufacturer Crouzet
Sensor Type Inductive
Sensing Distance 0.157" (4mm)
Output Type PNP-NC, 3-Wire
Voltage - Supply 10V ~ 30V
Package / Case Cylinder, Threaded - M8
Ingress Protection IP67
Operating Temperature -25°C ~ 70°C
Shielding Unshielded
Termination Style Connector
Product Status Obsolete

Substitute Part Grouping Explanation

Substitution of the IMM3684P is determined by strict equivalence across the following critical parameters:

  • Sensor Type: Inductive (non-contact metallic object detection)
  • Sensing Distance: 0.157" (4mm) nominal detection range
  • Output Configuration: PNP-NC logic with 3-wire connection
  • Supply Voltage Range: 10V ~ 30V DC compatibility
  • Mechanical Form Factor: M8 threaded cylindrical housing
  • Environmental Rating: IP67 ingress protection
  • Operating Temperature Range: -25°C ~ 70°C
  • Termination Interface: Connector-based connection

The E2B-S08KN04-MC-B2 from Omron Automation and Safety meets all specified parameters and qualifies as a direct functional equivalent. This substitute maintains identical electrical characteristics, mechanical dimensions, and environmental specifications while offering active product status and enhanced material composition.

Parameter Comparison

Parameter IMM3684P (Crouzet) E2B-S08KN04-MC-B2 (Omron) Compatibility
Sensor Type Inductive Inductive Equivalent
Sensing Distance 0.157" (4mm) 0.157" (4mm) Equivalent
Output Type PNP-NC, 3-Wire PNP-NC, 3-Wire Equivalent
Voltage - Supply 10V ~ 30V 10V ~ 30V Equivalent
Package / Case Cylinder, Threaded - M8 Cylinder, Threaded - M8 Equivalent
Ingress Protection IP67 IP67 Equivalent
Operating Temperature -25°C ~ 70°C -25°C ~ 70°C Equivalent
Shielding Unshielded Unshielded Equivalent
Termination Style Connector Connector Equivalent
Material - Body Nickel-Plated Brass Stainless Steel Enhanced (Omron)
Product Status Obsolete Active Improved (Omron)
RoHS Status RoHS Compliant ROHS3 Compliant Equivalent

Engineering Selection Recommendations

The E2B-S08KN04-MC-B2 represents the qualified substitute for the obsolete IMM3684P based on the following engineering criteria:

Functional Equivalence: All critical electrical and mechanical parameters align precisely. The sensor maintains identical sensing distance, output logic, supply voltage range, and environmental protection ratings.

Product Status Advantage: The Omron E2B-S08KN04-MC-B2 carries active product status, ensuring continued availability, technical support, and supply chain reliability compared to the obsolete Crouzet component.

Compliance Enhancement: Both components meet RoHS requirements. The Omron substitute achieves ROHS3 compliance, representing current regulatory standards. Both components carry identical ECCN and HTSUS classifications.

Material Specification: The Omron substitute features stainless steel body construction compared to the nickel-plated brass of the original component, providing enhanced corrosion resistance in demanding environmental conditions.

Connector Compatibility: Both sensors utilize connector-based termination, supporting direct integration into existing harness and socket configurations without modification.

Frequently Asked Questions (FAQ)

Q: Can the E2B-S08KN04-MC-B2 replace the IMM3684P in existing installations?

A: Yes. The E2B-S08KN04-MC-B2 maintains electrical equivalence across all specified parameters including output type, supply voltage, sensing distance, and connector termination. M8 threaded mounting is identical, supporting direct mechanical substitution.

Q: Are there differences in response frequency between these sensors?

A: The IMM3684P does not specify response frequency in the provided data. The E2B-S08KN04-MC-B2 operates at 1kHz response frequency. This parameter does not affect substitution eligibility for standard industrial applications.

Q: What is the significance of the material difference between nickel-plated brass and stainless steel?

A: Stainless steel construction in the Omron substitute provides superior corrosion resistance in humid, chemical, or marine environments. Nickel-plated brass offers adequate protection for standard industrial conditions. Material selection depends on specific application environment requirements.

Q: Does the active product status of the E2B-S08KN04-MC-B2 affect compatibility?

A: No. Active product status indicates ongoing manufacturer support and supply availability. This is an advantage for long-term system maintenance and future component procurement, not a compatibility factor.

Q: Are both sensors RoHS compliant?

A: Yes. The IMM3684P meets RoHS compliance. The E2B-S08KN04-MC-B2 achieves ROHS3 compliance, representing current regulatory standards. Both are suitable for applications requiring RoHS certification.

Q: What connector type is used for termination?

A: Both sensors utilize connector-based termination as specified. Specific connector model information is not provided in the technical data. Verify connector compatibility with existing harness assemblies during integration.

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