E3F2-LS10B4-P1 Equivalent & Substitute Parts

Part Overview

The E3F2-LS10B4-P1 is a reflective, background suppression optical sensor manufactured by Omron Automation and Safety. This sensor operates at 3.937" (100mm) sensing distance with PNP output configuration and selectable Dark-ON/Light-ON modes. The product is classified as obsolete, making identification of suitable substitute components essential for system maintenance and new design implementations. The sensor features red light source (660nm) and meets IEC IP67 and IP69K ingress protection standards.

Substiute Parts

E3F2-LS10B4-P1

Omron Automation and SafetyIn Stock: 817E3F2-LS10B4-P1 Datasheet

Current PartRFQ

E3FA-LP21

Omron Automation and SafetyIn Stock: 1099E3FA-LP21 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the E3F2-LS10B4-P1 is determined by the following critical parameters:

• Sensing method: Reflective capability (background suppression is an enhanced feature but not mandatory for basic reflective operation)
• Sensing distance: 3.937" (100mm) exact match required
• Voltage supply range: 10V ~ 30V compatibility
• Output configuration: PNP with Dark-ON/Light-ON selectable modes
• Light source: Red wavelength (660nm or Red LED)
• Ingress protection: IEC IP67 minimum; IP69K preferred
• Operating temperature range: -25°C ~ 55°C or wider
• Connection method: Connector-based interface

The E3FA-LP21 meets all critical substitution criteria and is classified as an active product, providing long-term availability and support.

Parameter Comparison

Engineering Selection Recommendations

The E3FA-LP21 is the qualified substitute for the obsolete E3F2-LS10B4-P1. Selection is based on the following engineering factors:

Product Status: The E3FA-LP21 maintains active product status with confirmed inventory availability (1041 pcs), ensuring long-term supply chain reliability compared to the obsolete E3F2-LS10B4-P1.

Compliance and Certifications: The E3FA-LP21 is ROHS3 compliant and REACH affected, providing regulatory alignment for current manufacturing standards. The E3F2-LS10B4-P1 has vendor-undefined compliance status.

Electrical and Mechanical Compatibility: Both sensors share identical supply voltage range (10V ~ 30V), output configuration (PNP with selectable Dark-ON/Light-ON), sensing distance (100mm), ingress protection rating (IP67/IP69K), and operating temperature range (-25°C ~ 55°C).

Performance Differential: The E3FA-LP21 offers improved response time (500µs versus 1ms), representing a performance enhancement in switching speed.

Sensing Method Consideration: The E3F2-LS10B4-P1 includes background suppression capability, while the E3FA-LP21 provides standard reflective sensing. For applications requiring background suppression, this difference must be evaluated against system requirements.

Frequently Asked Questions (FAQ)

Q: Can the E3FA-LP21 directly replace the E3F2-LS10B4-P1 in existing installations?

A: Yes, for applications where background suppression is not a critical requirement. Both sensors share identical electrical specifications (10V ~ 30V supply, PNP output, selectable Dark-ON/Light-ON), sensing distance (100mm), and environmental ratings (IP67/IP69K, -25°C ~ 55°C). Mechanical compatibility is ensured through connector-based interfaces on both models.

Q: What is the difference between reflective sensing and reflective with background suppression?

A: Reflective sensing (E3FA-LP21) detects objects by measuring reflected light from a target surface. Reflective with background suppression (E3F2-LS10B4-P1) adds filtering to ignore reflections from distant backgrounds, improving accuracy in cluttered environments. For applications without background interference, both methods are functionally equivalent.

Q: Are there packaging differences between these sensors?

A: The E3F2-LS10B4-P1 packaging is not specified in available documentation. The E3FA-LP21 is supplied in bulk packaging. Both use connector-based connection methods, ensuring consistent integration into systems.

Q: What is the response time difference, and does it matter for my application?

A: The E3FA-LP21 has a response time of 500µs compared to 1ms for the E3F2-LS10B4-P1. This 2x improvement in switching speed may be significant for high-speed detection applications or systems with tight timing requirements. For standard industrial applications, both response times are typically acceptable.

Q: Why is the E3F2-LS10B4-P1 obsolete?

A: Product obsolescence is determined by the manufacturer. The E3FA-LP21 represents the current active product line from Omron for this sensor category, offering improved compliance (ROHS3, REACH) and performance characteristics.

Q: Are both sensors RoHS and REACH compliant?

A: The E3FA-LP21 is ROHS3 compliant and REACH affected. The E3F2-LS10B4-P1 has vendor-undefined compliance status. For new designs or systems requiring regulatory compliance documentation, the E3FA-LP21 is the appropriate selection.