OPB490T11 Equivalent & Substitute Parts

Part Overview

The OPB490T11 is an optical sensor from TT Electronics/Optek Technology's Photologic® series, designed as a through-beam sensor with 0.125" (3.18mm) sensing distance and wire lead module packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The OPB490T11 operates with a 4.5V to 16V supply, draws 7.5 mA, and provides pull-up resistor with buffer output configuration suitable for chassis mount applications. The 50ns response time and -40°C to 85°C operating temperature range define its performance envelope for industrial sensing applications.

Substiute Parts

OPB490T11

TT Electronics/Optek TechnologyIn Stock: 1126OPB490T11 Datasheet

Current PartRFQ

OPB490T11Z

TT Electronics/Optek TechnologyIn Stock: 4255OPB490T11Z Datasheet

DirectRFQ

OPB460T11

TT Electronics/Optek TechnologyIn Stock: 803OPB460T11 Datasheet

MFR RecommendedRFQ

OPB480L11Z

TT Electronics/Optek TechnologyIn Stock: 1062OPB480L11Z Datasheet

MFR RecommendedRFQ

OPB480T11Z

TT Electronics/Optek TechnologyIn Stock: 1119OPB480T11Z Datasheet

MFR RecommendedRFQ

OPB490P11Z

TT Electronics/Optek TechnologyIn Stock: 3739OPB490P11Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the OPB490T11 is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility: Sensing distance (0.125"), sensing method (through-beam), output configuration (pull-up resistor with buffer), supply voltage range (4.5V ~ 16V), supply current (7.5 mA), response time (50ns), and operating temperature range (-40°C ~ 85°C) must remain constant.

Mechanical Compatibility: Mounting type and package configuration determine physical interchangeability. Wire lead module packages are interchangeable with other wire lead modules. PCB mount variants represent functional equivalents but require mechanical redesign.

Compliance Status: Active product status with ROHS3 compliance is preferred for new designs, though RoHS non-compliant obsolete parts remain electrically equivalent.

The substitute parts are grouped into two categories:

1. Direct Electrical Equivalents (Wire Lead Module): OPB490T11Z, OPB480L11Z, OPB480T11Z, OPB490P11Z — identical electrical specifications and wire lead packaging, differing only in packaging format (bulk vs. tape) and compliance status.

2. Functional Equivalent (PCB Mount): OPB460T11 — identical electrical specifications but requires through-hole PCB mounting instead of chassis mount wire leads, necessitating mechanical redesign.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Wire Lead Module): OPB490T11Z is the primary substitute, offering identical electrical and mechanical specifications with active product status and ROHS3 compliance. OPB490P11Z and OPB480T11Z/OPB480L11Z provide equivalent functionality with higher inventory availability.

For New Designs: Select OPB490T11Z, OPB490P11Z, OPB480T11Z, or OPB480L11Z to ensure ROHS3 compliance and active manufacturer support. All maintain the 0.125" sensing distance, through-beam method, and 4.5V to 16V supply specifications required for industrial optical sensing applications.

For PCB-Integrated Designs: OPB460T11 provides electrical equivalence with through-hole PCB mounting, eliminating external wire lead connections. This requires mechanical redesign but maintains all electrical parameters and compliance status.

Compliance Consideration: The OPB490T11 is RoHS non-compliant. Designs targeting RoHS3 compliance must transition to OPB490T11Z, OPB490P11Z, OPB480T11Z, OPB480L11Z, or OPB460T11.

Frequently Asked Questions (FAQ)

Q: Can OPB490T11Z directly replace OPB490T11 without circuit modification?

A: Yes. OPB490T11Z maintains identical electrical specifications (4.5V ~ 16V supply, 7.5 mA current, 50ns response time, pull-up resistor with buffer output) and wire lead module packaging. Only the packaging format (bulk vs. tape) and RoHS compliance status differ.

Q: What is the difference between OPB490T11Z and OPB480T11Z?

A: Both parts share identical electrical specifications and wire lead module packaging. The difference lies in the base product number (OPB490 vs. OPB480) and internal slot configuration. Electrical performance and pinout remain equivalent for through-beam sensing at 0.125" distance.

Q: Can OPB460T11 replace OPB490T11 in existing assemblies?

A: OPB460T11 provides electrical equivalence but requires mechanical redesign. It uses through-hole PCB mounting instead of chassis mount wire leads. The 0.125" sensing distance, through-beam method, and electrical specifications remain identical, but physical integration differs.

Q: Why is OPB490T11 marked obsolete?

A: OPB490T11 is no longer in active production. Substitute parts OPB490T11Z, OPB490P11Z, OPB480T11Z, and OPB480L11Z are active equivalents with identical electrical performance and improved compliance status.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. OPB490T11Z, OPB490P11Z, OPB480T11Z, OPB480L11Z, and OPB460T11 are all ROHS3 compliant. The original OPB490T11 is RoHS non-compliant.

Q: What determines whether a part can substitute for OPB490T11?

A: Substitution requires matching sensing distance (0.125"), sensing method (through-beam), output configuration (pull-up resistor with buffer), supply voltage (4.5V ~ 16V), supply current (7.5 mA), response time (50ns), and operating temperature (-40°C ~ 85°C). Mounting type and package format determine mechanical interchangeability.