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TT Electronics - Optek Technology OPB854A3 Slotted Optical Switch

The OPB854A3 is a slotted optical switch designed for non-contact object detection and automation systems. Featuring a compact plastic housing, it includes an infrared LED emitter and a photodarlington receiver mounted opposite each other with a 0.125-inch wide slot. Ideal for machine safety, assembly line automation, and security applications, it offers high-resolution detection with apertures for precise sensing. Operating within a temperature range of -40°C to +85°C, it ensures reliable performance in industrial environments, with specifications supporting a broad range of sensing and automation tasks.

Authorized Distributors
Source:DigiKey
Part No:OPB854A3
Stock:266
Inv Date:06-11-2026
Price: Unit price: $3.2
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Part No:OPB854A3
Stock:500
Inv Date:06-12-2026
Price: Unit price: $3.2
Buy/RFQ:
Part No:OPB854A3
Stock:15
Inv Date:06-11-2026
Price: Unit price: $3.52
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TT Electronics - Optek Technology OPB854A3 Slotted Optical Switch Specifications:

  • Housing Material: Inexpensive opaque plastic
  • Slot Width: 0.125 inch (3.18 mm)
  • Lead Spacing: 0.290 inch (7.37 mm)
  • Aperture Dimensions: Emitter 0.050 inch x 0.050 inch, Receiver 0.010 inch x 0.050 inch
  • Temperature Range: -40°C to +85°C
  • Input Diode Forward DC Current: 40 mA
  • Peak Forward Current: 3A (1 us pulse)
  • Reverse Voltage: 2V
  • Collector-Emitter Voltage: 30V
  • Emitter-Collector Voltage: 5V
  • Power Dissipation: 100 mW
  • Collector-Emitter Breakdown Voltage: 30V
  • Emitter-Collector Breakdown Voltage: 5V
  • Dark Current: 100 nA at Vce=10V
  • Saturation Voltage: 0.4V (OPB852A1, OPB852A2), 0.04V (OPB852A3), 1.0V (OPB853A1, OPB853A2, OPB853A3)
  • On-State Collector Current: Up to 40 mA depending on model
  • Lead Soldering Temperature: 260°C for 5 sec,

Buy the Buy TT Electronics Slotted Optical Switch Part Number OPB854A3 Online

Purchase the TT Electronics OPB854A3 slotted optical switch online today and ensure precise object detection in your automation and security systems. Featuring a compact plastic housing, high-resolution sensing through apertured emitters and receivers, it is ideal for machine safety, assembly line automation, and security applications. Operating from -40°C to +85°C, it delivers reliable, long-lasting performance in industrial environments. Order now for fast delivery and enhance your automation solutions with this high-quality optical sensor designed for accuracy and durability.

Get TT Electronics OPB854A3 today—designed for high-resolution object sensing and reliable industrial automation performance.

Frequently Asked Questions

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You can click on the BUY or RFQ button to purchase OPB854A3 from an authorized TT Electronics - Optek Technology distributor.

How do I troubleshoot issues or seek technical support for part OPB854A3?

You can download the OPB854A3 datasheet or visit the TT Electronics - Optek Technology website for support.

Who is the manufacturer of OPB854A3?

TT Electronics - Optek Technology

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