OPB355P Equivalent & Substitute Parts

Part Overview

The OPB355P is a through-beam optical sensor manufactured by TT Electronics/Optek Technology, designed for slotted optical switching applications. This component features a phototransistor output configuration and operates across an industrial temperature range of -40°C to 85°C. The OPB355P is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

OPB355P

TT Electronics / Optek TechnologyIn Stock: 1112OPB355P Datasheet

Current PartRFQ

OPB355T

TT Electronics/Optek TechnologyIn Stock: 822OPB355T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OPB355P is determined by strict alignment of the following critical parameters:

• Sensing Distance: 0.125" (3.18mm) — exact match required
• Sensing Method: Through-Beam configuration — no deviation permitted
• Output Configuration: Phototransistor output — functional equivalence requirement
• Mounting Type: Through Hole — mechanical compatibility requirement
• Operating Temperature Range: -40°C ~ 85°C — minimum specification requirement
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected — mandatory for industrial applications

The OPB355T qualifies as a direct substitute based on identical alignment across all critical parameters. The primary distinction is product status: OPB355T is active production, whereas OPB355P is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The OPB355T is the direct equivalent for OPB355P applications. Both components share identical electrical and mechanical specifications across all critical parameters. The OPB355T is the preferred selection for new designs and ongoing production due to its active product status, ensuring long-term availability and supply chain continuity. Both components maintain full ROHS3 compliance and REACH compliance status, satisfying regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can OPB355T be used as a direct replacement for OPB355P in existing designs?

A: Yes. The OPB355T provides functional equivalence across all critical parameters: identical sensing distance (0.125"), through-beam sensing method, phototransistor output, through-hole mounting, and operating temperature range (-40°C ~ 85°C). No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The OPB355P is classified as obsolete. The OPB355T is the active production equivalent from the same manufacturer, ensuring continued availability and supply chain support.

Q: Are there packaging differences between OPB355P and OPB355T?

A: The OPB355T is supplied in bulk packaging. Packaging specifications for OPB355P were not provided in the technical documentation. Verify packaging requirements against your assembly process specifications.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both OPB355P and OPB355T are ROHS3 compliant and REACH unaffected, meeting current industrial regulatory requirements.

Q: What parameters must remain identical for substitution eligibility?

A: Sensing distance (0.125"), sensing method (through-beam), output configuration (phototransistor), mounting type (through-hole), and operating temperature range (-40°C ~ 85°C) must remain unchanged. Deviations in any of these parameters disqualify substitution.