OPB461P11 Equivalent & Substitute Parts

Part Overview

The OPB461P11 is an optical sensor manufactured by TT Electronics/Optek Technology, part of the Photologic® series. It is a through-beam optical sensor with 0.125" (3.18mm) sensing distance, designed for PCB mount applications. The OPB461P11 is currently classified as obsolete. Due to its obsolete status, equivalent and substitute parts from the active product line are necessary to maintain system functionality and ensure continued component availability for new designs and field replacements.

Substiute Parts

OPB461P11

TT Electronics/Optek TechnologyIn Stock: 777OPB461P11 Datasheet

Current PartRFQ

OPB461L11

TT Electronics/Optek TechnologyIn Stock: 944OPB461L11 Datasheet

MFR RecommendedRFQ

OPB461T11

TT Electronics/Optek TechnologyIn Stock: 718OPB461T11 Datasheet

MFR RecommendedRFQ

OPB471L11

TT Electronics / Optek TechnologyIn Stock: 830OPB471L11 Datasheet

MFR RecommendedRFQ

OPB471N11

TT Electronics/Optek TechnologyIn Stock: 1270OPB471N11 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the OPB461P11 is determined by strict equivalence across the following critical parameters:

• Sensing Distance: 0.125" (3.18mm)
• Sensing Method: Through-Beam
• Output Configuration: NPN - Open Collector, Buffer
• Mounting Type: Through Hole
• Current - Supply: 7.5 mA
• Voltage - Supply: 4.5V ~ 16V
• Response Time: 50ns
• Operating Temperature: -40°C ~ 85°C
• Package / Case: PCB Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters. The primary distinction between substitute parts is product status (active vs. obsolete) and packaging configuration (bulk vs. other formats). Substitutes are drawn from the OPB461 and OPB471 base product families within the Photologic® series, all manufactured by TT Electronics/Optek Technology.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed—OPB461L11, OPB461T11, OPB471L11, and OPB471N11—are functionally equivalent to the OPB461P11 across all specified electrical and mechanical parameters. The primary advantage of these substitutes is their active product status, ensuring ongoing availability and support from TT Electronics/Optek Technology.

For new designs and field replacements, selection among the active substitutes should be based on packaging availability and inventory requirements. OPB461L11 and OPB461T11 maintain the OPB461 base product designation, while OPB471L11 and OPB471N11 are from the OPB471 base product family. All parts maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and REACH unaffected status, ensuring regulatory compliance across industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can OPB461L11, OPB461T11, OPB471L11, and OPB471N11 be used interchangeably with OPB461P11?

A: Yes. All substitute parts maintain identical electrical specifications (7.5 mA supply current, 4.5V ~ 16V supply voltage, 50ns response time), mechanical specifications (0.125" sensing distance, through-beam sensing method, NPN open collector output, through-hole mounting), and environmental ratings (-40°C ~ 85°C operating temperature). They are direct functional equivalents.

Q: What is the difference between OPB461L11 and OPB461T11?

A: Both parts are from the OPB461 base product family and share identical electrical and mechanical specifications. The difference lies in packaging configuration. OPB461L11 is packaged in bulk format, while OPB461T11 is also bulk packaged. Consult specific packaging documentation for detailed physical configuration differences.

Q: Why is OPB461P11 listed as obsolete?

A: OPB461P11 has been discontinued by the manufacturer. Active substitutes from the OPB461 and OPB471 product families are available to support ongoing system requirements and new designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. OPB461L11, OPB461T11, OPB471L11, and OPB471N11 are all ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial applications.

Q: What is the inventory status of substitute parts?

A: OPB461L11 has 836 pieces in stock, OPB461T11 has 660 pieces in stock, OPB471L11 has 736 pieces in stock, and OPB471N11 has 1192 pieces in stock. Inventory levels are subject to change.