EE-SX129 Equivalent & Substitute Parts

Part Overview

The EE-SX129 is an optical sensor manufactured by Omron Electronics Inc-EMC Div, designed as a through-beam phototransistor with PCB mount configuration. This component operates with a 0.118" (3mm) sensing distance and provides unamplified output suitable for slot detection applications. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system maintenance and new design implementations.

Substiute Parts

EE-SX129

Omron Electronics Inc-EMC DivIn Stock: 751EE-SX129 Datasheet

Current PartRFQ

EE-SV3-D

Omron Electronics Inc-EMC DivIn Stock: 1244EE-SV3-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The EE-SV3-D qualifies as a direct substitute for the EE-SX129 based on the following critical parameters:

• Sensing Method: Both components utilize through-beam optical sensing
• Output Configuration: Both employ phototransistor output
• Mounting Type: Both feature through-hole PCB mount configuration
• Electrical Specifications: Identical collector current maximum (20 mA), collector-emitter breakdown voltage (30 V), and response time (4µs)
• Operating Temperature Range: Both operate across -25°C ~ 85°C
• Component Type: Both are unamplified optical sensors

The primary difference is the sensing distance: EE-SX129 operates at 0.118" (3mm) while EE-SV3-D operates at 0.134" (3.4mm). This variance of 0.016" (0.4mm) represents a 13.6% increase in sensing distance and must be evaluated against specific application slot width requirements.

Parameter Comparison

Engineering Selection Recommendations

The EE-SV3-D is the manufacturer-recommended substitute for the obsolete EE-SX129. Selection of this substitute is supported by:

• Product Status: EE-SV3-D maintains active production status, ensuring long-term availability and supply chain continuity
• Compliance: EE-SV3-D achieves ROHS3 compliance, exceeding the RoHS compliance level of the original component
• Electrical Equivalence: All critical electrical parameters remain identical, including collector current, breakdown voltage, and response time
• Mechanical Compatibility: Through-hole PCB mount configuration and operating temperature range are preserved

The 0.016" (0.4mm) increase in sensing distance must be evaluated against application-specific slot width tolerances to confirm mechanical compatibility in the target assembly.

Frequently Asked Questions (FAQ)

Q: Can EE-SV3-D be used as a direct replacement for EE-SX129 in existing designs?

A: EE-SV3-D is electrically and mechanically compatible with EE-SX129 provided the application slot width accommodates the increased sensing distance of 0.134" (3.4mm) versus the original 0.118" (3mm). Mechanical fit verification is required before implementation.

Q: What is the significance of the sensing distance difference?

A: The sensing distance defines the maximum slot width through which the optical beam can pass. EE-SV3-D permits a 0.4mm wider slot. Applications with tighter slot tolerances may require mechanical adjustment or alternative component selection.

Q: Are there electrical performance differences between these components?

A: No. Both components share identical collector current maximum (20 mA), collector-emitter breakdown voltage (30 V), response time (4µs), and operating temperature range (-25°C ~ 85°C).

Q: Why is EE-SX129 obsolete?

A: Product obsolescence is determined by the manufacturer. EE-SV3-D represents the active production equivalent within the Omron optical sensor portfolio.

Q: What packaging options are available for EE-SV3-D?

A: EE-SV3-D is supplied in bulk packaging. Original EE-SX129 packaging specifications are not provided in available documentation.

Q: Are there compliance differences?

A: EE-SV3-D achieves ROHS3 compliance compared to RoHS compliance for EE-SX129. ROHS3 represents an updated compliance standard. Both components are RoHS-compliant for environmental regulations.