Carrollton, Tex. TT electronics OPTEK Technology has developed a compact infrared slotted switch for general-purpose machine and automation applications that require a non-contacting sensor.
Designated the OPB200 series, these slotted switches are packaged in an opaque grade of injection-molded polyester, which increases reliability by minimizing the assembly's sensitivity to ambient visible light and near-infrared radiation, said the company. During operation, the output phototransistor switches from an ON to an OFF state when an opaque object is inserted into the housing's gap between the emitter and the sensor, breaking the infrared light beam.
The infrared LED packaged in the OPB200 devices can be driven with a DC forward current up to 50 mA. It has a maximum reverse DC voltage of 5 V, and a maximum power dissipation of 75 mW. The output phototransistor's collector-emitter breakdown voltage is 30 V, with an emitter-collector breakdown voltage of 5 V. The operating temperature range is -25°C to 85°C.
The new devices are packaged in an opaque polyester slotted switch housing with a .200 in. (5.08 mm) gap, and a 0.320 in. (8.13 mm) slot depth. The through-hole device mounts to a PC-board with a footprint of 0.520 in. (13.2 mm) x 0.240 in. (6.1 mm), with a board-mounted profile of 0.400 in. (10.2 mm).
Typical pricing for the OPB200 devices is $0.90 each in quantities of 1,000. Samples are available for immediate delivery, with production lead times from stock to six weeks. The company will provide assembly services for volume orders including PC-board mounting, second-level wiring or other design services.
Call (972) 323-2200