OPB901W55 Equivalent & Substitute Parts

Part Overview

The OPB901W55 is an optical sensor manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This through-beam optical sensor features a 0.375" (9.53mm) sensing distance with NPN open collector buffer output configuration and wire lead packaging for chassis mount applications.

The OPB901W55 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this sensor.

Substiute Parts

OPB901W55

TT Electronics/Optek TechnologyIn Stock: 1161OPB901W55 Datasheet

Current PartRFQ

OPB901W55Z

TT Electronics / Optek TechnologyIn Stock: 2515OPB901W55Z Datasheet

DirectRFQ

OPB911W55Z

TT Electronics/Optek TechnologyIn Stock: 3481OPB911W55Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OPB901W55 are identified based on electrical and mechanical parameter equivalence. The following criteria determine substitutability:

Critical Parameters for Substitution:

• Sensing distance: 0.375" (9.53mm)
• Sensing method: Through-Beam
• Output configuration: NPN - Open Collector, Buffer
• Mounting type: Chassis Mount
• Supply voltage range: 4.75V ~ 5.25V
• Supply current: 15 mA
• Response time: 70ns
• Operating temperature range: -40°C ~ 85°C
• Package type: Module, Wire Leads

All identified substitute parts maintain identical electrical performance and mechanical compatibility with the original OPB901W55 specification.

Parameter Comparison

Engineering Selection Recommendations

OPB901W55Z is a direct equivalent substitute with identical electrical and mechanical specifications. This part carries Active product status and ROHS3 compliance, providing improved regulatory alignment compared to the obsolete OPB901W55.

OPB911W55Z is the manufacturer-recommended substitute, offering the same functional performance and parameter set as the original part. This part also maintains Active product status and ROHS3 compliance.

Both substitute parts are manufactured by TT Electronics/Optek Technology within the Photologic® series and provide full electrical and mechanical compatibility for applications currently utilizing the OPB901W55. Selection between OPB901W55Z and OPB911W55Z should be based on availability and design requirements, as both parts satisfy identical performance criteria.

Frequently Asked Questions (FAQ)

Q: Can OPB901W55Z and OPB911W55Z be used interchangeably with OPB901W55?

A: Yes. Both substitute parts maintain identical electrical specifications (15 mA supply current, 4.75V ~ 5.25V supply voltage, 70ns response time) and mechanical configuration (chassis mount, module with wire leads, 0.375" sensing distance). All three parts operate as through-beam optical sensors with NPN open collector buffer output.

Q: What is the difference between OPB901W55Z and OPB911W55Z?

A: Both parts share identical electrical and mechanical parameters. The primary difference is the base product number designation (OPB901 versus OPB911). Both are active products with ROHS3 compliance and equivalent performance characteristics.

Q: Why is the OPB901W55 listed as obsolete?

A: The OPB901W55 is no longer in active production. The substitute parts OPB901W55Z and OPB911W55Z provide equivalent functionality with current product status and improved regulatory compliance (ROHS3).

Q: Are there packaging differences between these parts?

A: The OPB901W55 is listed with unspecified packaging, while OPB901W55Z and OPB911W55Z are supplied in bulk packaging. All three parts use identical module with wire leads configuration for chassis mount applications.

Q: Do the substitute parts meet current regulatory requirements?

A: OPB901W55Z and OPB911W55Z are ROHS3 compliant and REACH unaffected, meeting current regulatory standards. The original OPB901W55 is RoHS non-compliant.