Omron EE-SPX301 Optical Sensor: Equivalent & Substitute Parts

Part Overview

The Omron EE-SPX301 is an active optical sensor designed for through-beam detection applications with a 0.142" (3.6mm) sensing distance. This slotted module sensor operates across a 5V to 24V supply range and delivers NPN open collector output with dark-ON logic. The part is currently active in production with 755 units in stock. Substitute parts become necessary when primary inventory is depleted, when supply chain constraints affect availability, or when design flexibility allows for functionally equivalent alternatives within the same product family.

Substiute Parts

EE-SPX301

Omron Automation and SafetyIn Stock: 816EE-SPX301 Datasheet

Current PartRFQ

EE-SPX740

Omron Automation and SafetyIn Stock: 1097EE-SPX740 Datasheet

SimilarRFQ

EE-SPX743

Omron Automation and SafetyIn Stock: 997EE-SPX743 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EE-SPX301 is determined by strict equivalence across the following critical parameters:

• Sensing distance: 0.142" (3.6mm)
• Sensing method: Through-beam detection
• Output type: NPN open collector with dark-ON logic
• Supply voltage range: 5V to 24V
• Operating temperature range: -10°C to 55°C
• Physical form factor: Slotted module for chassis mounting
• Environmental compliance: ROHS3 certification and REACH unaffected status

The substitute parts EE-SPX740 and EE-SPX743 meet all these criteria and are therefore direct functional equivalents. Both maintain identical electrical specifications, mechanical mounting characteristics, and regulatory compliance profiles.

Parameter Comparison

Engineering Selection Recommendations

All three parts—EE-SPX301, EE-SPX740, and EE-SPX743—are active production components with full regulatory compliance. The EE-SPX740 and EE-SPX743 are direct substitutes for the EE-SPX301 based on identical electrical and mechanical specifications. Selection between these parts should be driven by availability and supply chain considerations rather than technical performance differences. The EE-SPX740 currently maintains the highest inventory level at 1031 units, followed by EE-SPX743 at 890 units. All parts carry ROHS3 or equivalent RoHS compliance and are REACH unaffected, meeting current environmental regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can EE-SPX740 or EE-SPX743 be used as direct replacements for EE-SPX301 in existing designs?

A: Yes. Both substitute parts share identical sensing distance, detection method, output logic, supply voltage range, operating temperature range, and physical form factor. No circuit modifications or mechanical redesign is required.

Q: Are there any differences in RoHS compliance between these parts?

A: The EE-SPX301 and EE-SPX740 are both ROHS3 compliant. The EE-SPX743 carries RoHS compliance. Both certifications meet current environmental standards for this product category.

Q: What determines whether a part qualifies as a substitute for the EE-SPX301?

A: Substitution requires matching across all critical parameters: 0.142" (3.6mm) sensing distance, through-beam detection method, NPN open collector dark-ON output, 5V to 24V supply voltage, -10°C to 55°C operating temperature, chassis mount configuration, and slotted module form factor.

Q: Does the slotted module form factor affect mechanical compatibility?

A: No. All three parts use identical slotted module packaging for chassis mounting. Physical installation