The Omron EE-SX674A is a through-beam slot-type optical sensor with a 0.197 mm sensing gap and an NPN open collector output. It runs on a 5 V supply and switches up to 12 mA, with a 1 ms response time. The operating range is -25°C to 55°C, so it is fine for a ventilated cabinet or indoor production floor, but not for an unheated warehouse in winter or a hot motor bay.
Sensing gap and mechanical fit
The 0.197 mm slot is a tight gap — it is designed for thin flags, paper edges, or small-diameter wire breaks. The chassis-mount box package has no cable; you wire directly to the terminals inside the housing. That keeps the profile low but means you need to plan access for a small screwdriver. If your application needs a wider gap or a pre-wired connector, the EE-SPX305-W2A is a through-beam sibling with a 0.197 mm gap and wire leads, though its temperature range tops out at 55°C as well.
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