Opto Switch, Slotted, 10K Pull-up, -40 to 100°C

The OPB625 Photologic Slotted Optical Switch is a high-performance, printed circuit board-mounted device designed for precision non-contact sensing. It combines an 890nm infrared light-emitting diode (LED) with a sophisticated monolithic integrated circuit that houses a photodiode, linear amplifier, and Schmitt trigger on a single silicon chip. This integrated design delivers reliable operation with an enhanced signal-to-noise ratio, ensuring accurate detection in various environments.

This opto switch features a 10K pull-up output, available in both buffered and inverted configurations, making it highly versatile for direct integration into digital circuits. It is fully TTI/LSTTL compatible and capable of driving up to 10 standard TTL loads, simplifying design and reducing component count. With a robust operating temperature range of -40°C to 100°C and a power dissipation of 240mW, it is engineered for stability and longevity in demanding applications.

A primary advantage is its role as a direct mechanical switch replacement, eliminating issues related to contact wear, bounce, and contamination. Its through-beam sensing method provides precise detection of objects passing through the slotted gap, making it ideal for critical tasks such as speed indication (tachometer), mechanical limit switching, and edge sensing in automated systems.

Key Specifications & Features

• Sensing Method: Through-beam, slotted optical switch.
• Output Type: 10K pull-up (buffered or inverted).
• Compatibility: TTI/LSTTL compatible; drives up to 10 TTL loads.
• Operating Temperature: Wide range from -40°C to 100°C.
• Power Dissipation: 240mW.
• Supply Voltage: Operates from 4.5V to 16V DC.
• Emitter: 890nm infrared LED.
• Package: Module style for through-hole PCB mounting.
• Dimensions: 33mm (Width) x 43mm (Height) x 15mm (Depth).

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