Opto-isolator Breakout

Sparkfun ElectronicsSKU: RB-Spa-750
Manufacturer #: BOB-09118

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Sale price ¥995

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Only 1 unit left

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  • Designed for Opto-Isolation
  • Helpful for connecting digital systems to a high-voltage or noisy system
  • Compatible with dual wave, vapor phase and IR reflow soldering
  • RoHS Compliant

The Opto-isolator Breakout IC has two LEDs and two photodiodes built-in. This board electrically isolates a controller from the high-power system by use of an opto-isolator IC.

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Customer Reviews

Based on 1 review

I should have inspected the schematic more closely. Each output (from the opto-coupler IC) is buffered by a transistor in common-emitter configuration with a 10K pull-up resistor. It can't be used to drive a relay or other load. When the input goes high (logical-1), the opto-coupler IC becomes active, grounds the base of the output transistor, which then turns off. The output then goes to logical-1, pulled high by the 10K pull-up. I ended up buying a couple of naked opto-coupler chips, and tossed this breakout board into the parts bin for a future project.

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