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TT Electronics - Optek Technology OPB870T51 Optical Sensor

The OPB870 series Phototransistor Sensor offers customizable features including aperture widths of 0.050 inches, IR transmissive or opaque shells, various mounting options, and lead configurations. Constructed from opaque injection-molded plastic to reduce external light sensitivity, models with different aperture and shell materials provide dust protection or optimal ambient light immunity. Designed for easy direct PCB connection, the sensors are ideal for sensing, automation, process control, safety, and industrial applications, ensuring reliable operation in diverse industrial environments.

Authorized Distributors
Source:DigiKey
Part No:OPB870T51
Stock:111
Inv Date:06-11-2026
Price: Unit price: $2.69
Buy/RFQ:
Part No:OPB870T51
Stock:442
Inv Date:06-12-2026
Price: Unit price: $2.71
Buy/RFQ:
Part No:OPB870T51
Stock:0
Inv Date:06-11-2026
Price: Unit price: $2.79
Buy/RFQ:

TT Electronics - Optek Technology OPB870T51 Optical Sensor Specifications:

  • Aperture options: 0.050 inches or 0.010 inches
  • Shell materials: opaque or IR transmissive plastic
  • Mounting configurations: various options including tabs and no mount
  • Lead configurations: PCB leads or wires, UL approved 24" long with 26 AWG
  • Operating temperature: -40°C to +85°C
  • Storage temperature: -40°C to +100°C
  • Maximum forward current: 50mA
  • Peak forward current: 1A (pulse)
  • Collector-Emitter Voltage: 30V
  • Collector Current: 30mA
  • IR wavelength: 850-940nm
  • Construction: opaque or IR transmissive plastic, dust-protected or open apertures
  • Applicable for: sensing, automation, safety, process control, industrial environments
  • Compliance: RoHS

Buy the Optek OPB870 – Reliable Infrared Sensor for Industrial Applications

Order the Optek Optical Sensor OPB870 now to enhance your automation and industrial safety projects. Featuring customizable apertures, shell materials, and mounting options, this sensor offers reliable performance across diverse environments. Its design ensures protection against dust and external light sources, enabling precise object sensing, automation, and process control. Made from high-quality materials, it connects easily to PCBs or wires, making installation straightforward. Trust Optek for durable, efficient, and RoHS-compliant sensing solutions that improve operational efficiency in manufacturing and automation industries.

Get Optek OPB870 today—built for precision and long-lasting durability in industrial sensing and automation systems.

Frequently Asked Questions

Where can I buy TT Electronics - Optek Technology OPB870T51?

You can click on the BUY or RFQ button to purchase OPB870T51 from an authorized TT Electronics - Optek Technology distributor.

How do I troubleshoot issues or seek technical support for part OPB870T51?

You can download the OPB870T51 datasheet or visit the TT Electronics - Optek Technology website for support.

Who is the manufacturer of OPB870T51?

TT Electronics - Optek Technology

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