Carrollton, Tex. TT electronics OPTEK Technology has developed a series of axial optical isolators using plastic optical fiber. Providing a solution to isolate high-voltage input/output circuits over varying distances, key applications for the OPI1270 series include industrial, medical, and office equipment, as well as electrical isolation circuits in harsh environments.
The OPI1270 axial fiber-optic isolators are constructed using a visible red LED emitter and a phototransistor detector in separate opaque molded plastic modules, linked by a shrouded optical cable that shields the optical signal from dust and other contaminations. The isolators are connected by a flexible optical cable in standard isolation distances of 18 mm (0.71 inch), 26 mm (1.02 inch), 32 mm (1.26 inch), 40 mm (1.57 inch), 66 mm (2.60 inch) or 80 mm (3.15 inch). Custom cable lengths are also available and the emitter's design does not require the sensor housings to be in precise optical alignment, said OPTEK.
The OPI1270 series isolators are rated for 15 kV and carry a power dissipation rating of 100 mW. The AlInGaP LED (emitter) emits red light with a peak wavelength of 645 nm. The phototransistor (sensor) exhibits a maximum collector current of 50 mA (VCE=10V, EE=0). Collector-emitter breakdown voltage is 33 V (min.), and emitter-collector breakdown voltage is 5.5 V (min.) (both measured at 100 uA, EE=0). The operating temperature range is -20°C to +75°C. The isolator series conforms to UL Standard 1577 (File #E58730).
The isolators are compatible with high temperature soldering processes of 260°C and are RoHS compliant. Custom specifications, including electrical specifications as well as special connectors or cabling configurations, are available.
Pricing: Approximately $3.22 each in quantities of 10,000.
Availability: Production quantity delivery, if stock is not available, is six to eight weeks.
Product information: optoisolators
OPTEK Technology, 1-972-323-2200, www.optekinc.com