Reduced PriceOffersContact UsHelpTrack Orders
Home
Login
Register
My Account
0
0 ItemsHK$0.00
  • All Products
    • Manufacturers
    • Popular Manufacturers
      ANALOG DEVICES
      STMICROELECTRONICS
      KEMET
      PANASONIC
      AMPHENOL
      ALPHAWIRE
      OMEGA
      NI
      TEKTRONIX
      TE CONNECTIVITY
      LITTELFUSE
      RASPBERRY PI
      View All Manufacturers
      MULTICOMP PRO

      The Engineer's Choice

      From prototype to production

      Learn More

      ACCESS ASSEMBLE ASPIRE

      The right components for tomorrow's success

      Learn More
      • Resources
      • Services
        • Custom Components
        • Purchasing & Procurement support
        • Design Resources
        • Production & Contract Manufacturing Services
        • Education Hub
        • Education Kits
        • Facilitates & Operation Support
        • Packaging Solutions
        View All Services
        Technical Resources
        • Security & Surveillance
        • Healthcare
        • Industrial Automation
        • OEM Solutions
        • EV Charging
        • Internet of Things
        • Artificial Intelligence
        • Maintenance & Safety
        • Wireless Technology
        • Sensor Technology
        • Power Management
        • Embedded Hub
        • 3D Printing Solutions
        • Engineering Glossary
        • Calculators & Charts
        • Selector Tools & Catalogues
        • eTechJournal
        • Software Offer
        View All Tech Resources
        Help
        • Contact Us
        • New To element14
        • Technical Support
        • Delivery Information
        • Legislation and Environmental
        • FAQ's
        • Feedback
        View All Help
        • Back to Resources
        • Services
          • Back to Services
          • Custom Components
            • Purchasing & Procurement support
              • Design Resources
                • Production & Contract Manufacturing Services
                  • Education Hub
                    • Education Kits
                      • Facilitates & Operation Support
                        • Packaging Solutions
                          • View All Services
                          • Technical Resources
                            • Back to Technical Resources
                            • Security & Surveillance
                              • Healthcare
                                • Industrial Automation
                                  • OEM Solutions
                                    • EV Charging
                                      • Internet of Things
                                        • Artificial Intelligence
                                          • Maintenance & Safety
                                            • Wireless Technology
                                              • Sensor Technology
                                                • Power Management
                                                  • Embedded Hub
                                                    • 3D Printing Solutions
                                                      • Engineering Glossary
                                                        • Calculators & Charts
                                                          • Selector Tools & Catalogues
                                                            • eTechJournal
                                                              • Software Offer
                                                                • View All Tech Resources
                                                                • Help
                                                                  • Back to Help
                                                                  • Contact Us
                                                                    • New To element14
                                                                      • Technical Support
                                                                        • Delivery Information
                                                                          • Legislation and Environmental
                                                                            • FAQ's
                                                                              • Feedback
                                                                                • View All Help
                                                                              • Communities
                                                                              • element14
                                                                                Visit the element14 Community for technical discussions, learning content, and opportunities to test new products.
                                                                                hacksterio
                                                                                Hackster is a community dedicated to learning hardware.
                                                                                • Back to Communities
                                                                                • element14
                                                                                  • Hackster.io
                                                                                  • Bill of Materials (BOM) Upload
                                                                                    • Tools
                                                                                    • Quick Buy
                                                                                      Parts List (BOM) Upload
                                                                                      Request a Quote
                                                                                      All Buying Tools
                                                                                      • Back to Tools
                                                                                      • Quick Buy
                                                                                        • Parts List (BOM) Upload
                                                                                          • Request a Quote
                                                                                            • All Buying Tools
                                                                                            • Offers
                                                                                              • Contact Us
                                                                                                • Help
                                                                                                  • Reduced Price
                                                                                                    1. Home
                                                                                                    2. Sensors & Transducers
                                                                                                    3. Sensors
                                                                                                    4. Optical Sensors
                                                                                                    5. Optical Slot Sensors
                                                                                                    Print Page

                                                                                                    OPB840L51

                                                                                                    PHOTO INTERRUPTER, THROUGH BEAM, 3.18MM

                                                                                                    TT ELECTRONICS / OPTEK TECHNOLOGY
                                                                                                    Image is for illustrative purposes only. Please refer to product description.
                                                                                                    TT ELECTRONICS / OPTEK TECHNOLOGY OPB840L51
                                                                                                    ManufacturerTT ELECTRONICS / OPTEK TECHNOLOGY
                                                                                                    Manufacturer Part NoOPB840L51
                                                                                                    Order Code4891028
                                                                                                    Product RangeOPB840L Series
                                                                                                    Technical Datasheet

                                                                                                    Data Sheet

                                                                                                    See all Technical Docs
                                                                                                    494 In Stock

                                                                                                    Need more?

                                                                                                    494 Delivery in 3-4 Business Days(UK stock)
                                                                                                    QuantityPrice
                                                                                                    1+HK$26.310
                                                                                                    10+HK$25.760
                                                                                                    25+HK$25.200
                                                                                                    50+HK$24.650
                                                                                                    100+HK$24.090
                                                                                                    500+HK$23.610
                                                                                                    Price for:Each
                                                                                                    Minimum: 1
                                                                                                    Multiple: 1
                                                                                                    HK$26.31
                                                                                                    Add Part No. / Line Note
                                                                                                    Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
                                                                                                    This number will be added to the Order Confirmation, Invoice, Dispatch note, Web confirmation Email and Product Label.

                                                                                                    Product Information

                                                                                                    TT ELECTRONICS / OPTEK TECHNOLOGY
                                                                                                    ManufacturerTT ELECTRONICS / OPTEK TECHNOLOGY
                                                                                                    Manufacturer Part NoOPB840L51
                                                                                                    Order Code4891028
                                                                                                    Product RangeOPB840L Series
                                                                                                    Technical Datasheet

                                                                                                    Data Sheet

                                                                                                    Sensing MethodThrough Beam
                                                                                                    Sensing Distance / Slot Width3.18mm
                                                                                                    Supply Voltage Min-
                                                                                                    Gap Width3.18mm
                                                                                                    Aperture Width1.27mm
                                                                                                    Supply Voltage Max-
                                                                                                    Sensor Case / PackageModule
                                                                                                    Forward Current If50mA
                                                                                                    Collector Emitter Voltage Max30V
                                                                                                    Reverse Voltage Vr2V
                                                                                                    Forward Voltage1.7V
                                                                                                    Collector Current IC Max30mA
                                                                                                    Sensor Output TypePhototransistor
                                                                                                    IP Rating-
                                                                                                    Sensor MountingPanel, Through Hole
                                                                                                    Operating Temperature Min-40°C
                                                                                                    Operating Temperature Max85°C
                                                                                                    Product RangeOPB840L Series
                                                                                                    Qualification-
                                                                                                    SVHCNo SVHC (27-Jun-2024)

                                                                                                    Product Overview

                                                                                                    The OPB840L51 is a Slotted Optical Switch with side mount configuration. The OPB840 series provide the design engineer with the flexibility of a custom device from a standard product line. The L Series offers a choice of PC board mount lead spacing. Building from a standard housing that utilizes a 0.375-inch wide slot and an user can specify the electrical output parameters, choice of aperture and discrete shell material, side mount configuration and a choice of lead spacing. Housings are made from an opaque grade of injection-molded plastic that minimizes the assembly sensitivity to visible and near-infrared ambient radiation. Discrete shell is made of either IR transmissive plastic or of opaque plastic with aperture openings.

                                                                                                    • 1A Peak forward current
                                                                                                    • 100mW Power dissipation

                                                                                                    Applications

                                                                                                    Sensing & Instrumentation, Automation & Process Control, Security, Safety

                                                                                                    Technical Specifications

                                                                                                    Sensing Method

                                                                                                    Through Beam

                                                                                                    Supply Voltage Min

                                                                                                    -

                                                                                                    Aperture Width

                                                                                                    1.27mm

                                                                                                    Sensor Case / Package

                                                                                                    Module

                                                                                                    Collector Emitter Voltage Max

                                                                                                    30V

                                                                                                    Forward Voltage

                                                                                                    1.7V

                                                                                                    Sensor Output Type

                                                                                                    Phototransistor

                                                                                                    Sensor Mounting

                                                                                                    Panel, Through Hole

                                                                                                    Operating Temperature Max

                                                                                                    85°C

                                                                                                    Qualification

                                                                                                    -

                                                                                                    Sensing Distance / Slot Width

                                                                                                    3.18mm

                                                                                                    Gap Width

                                                                                                    3.18mm

                                                                                                    Supply Voltage Max

                                                                                                    -

                                                                                                    Forward Current If

                                                                                                    50mA

                                                                                                    Reverse Voltage Vr

                                                                                                    2V

                                                                                                    Collector Current IC Max

                                                                                                    30mA

                                                                                                    IP Rating

                                                                                                    -

                                                                                                    Operating Temperature Min

                                                                                                    -40°C

                                                                                                    Product Range

                                                                                                    OPB840L Series

                                                                                                    SVHC

                                                                                                    No SVHC (27-Jun-2024)

                                                                                                    Technical Docs (3)

                                                                                                    Product Change Notice EN

                                                                                                    Technical Data Sheet EN

                                                                                                    CAD Multiple Formats EN

                                                                                                    Legislation and Environmental

                                                                                                    Country of Origin:
                                                                                                    Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                    Mexico
                                                                                                    Country in which last significant manufacturing process was carried out
                                                                                                    Tariff No:85414900
                                                                                                    US ECCN:EAR99
                                                                                                    EU ECCN:NLR
                                                                                                    RoHS Compliant:Yes

                                                                                                    RoHS

                                                                                                    RoHS Phthalates Compliant:Yes

                                                                                                    RoHS

                                                                                                    SVHC:No SVHC (27-Jun-2024)
                                                                                                    Download Product Compliance Certificate

                                                                                                    Product Compliance Certificate

                                                                                                    Weight (kg):.000629
                                                                                                    Customer Service
                                                                                                    Sales +852 2268 9888
                                                                                                    Technical +852 2268 9878
                                                                                                    Live Agent
                                                                                                    Submit Feedback
                                                                                                    FAQs
                                                                                                    Quick Links
                                                                                                    Track my order
                                                                                                    Order History
                                                                                                    Return a Product
                                                                                                    Delivery Information
                                                                                                    Our Company
                                                                                                    About Us
                                                                                                    Quality Policy
                                                                                                    Careers
                                                                                                    ESG
                                                                                                    Social Media +

                                                                                                    Subscribe to become an exclusive element14 insider!

                                                                                                    LinkedIn
                                                                                                    Twitter
                                                                                                    Facebook
                                                                                                    Norton Secured
                                                                                                    Mark of Trust ANAB
                                                                                                    BSI 9001
                                                                                                    Visa
                                                                                                    Mastercard
                                                                                                    Trade Account
                                                                                                    Privacy Statement
                                                                                                    Legal and Copyright Notices
                                                                                                    Terms & Conditions
                                                                                                    Terms of Use for API
                                                                                                    Sitemap
                                                                                                    An Avnet Company© 2025 Premier Farnell Limited. All Rights Reserved.
                                                                                                    e絡盟 is a trading name of eluomeng Limited.
                                                                                                    Registered number: 559890 | Registered office: 21st Floor, Tower 2, Enterprise Square Five, 38 Wang Chiu Road, Kowloon Bay, Kowloon, Hong Kong.