Available in three-wire NPN or PNP styles Visible red and infrared versions Constructed with plastic housings The QM Series of IP57-rated photoelectric sensors is available in three-wire NPN or PNP ...

The 3-wire, 10-20VDC sensor features integral circuitry that protects against wire-break and reverse polarity and is available with either a PNP (sourcing) or NPN (sinking) TTL compatible output. The ...

Banner Engineering Corp. introduces the WORLD-BEAM® Q20FF fixed-field background suppression sensor to the company’s line of compact photoelectric sensors. Offering the same high performance standards ...

The station includes one digital PNP I/O signal per po. rt, with an option for 2A outputs. Designed to meet the latest AS-I V3.0 specification, the product features PNP short-circuit protected inputs ...

The transistors used (a 2N3055 npn and 2N2955 pnp in TO-220 packages) are reasonably good choices. They should be placed on a heat sink for good heat dissipation.

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