Download File 1. Optocoupler, Phototransistor Output, with Base Connection — Vishay

This datasheet presents five families of Vishay industry standard single channel phototransistor couplers. These families include the 4N35, 4N36, 4N37, 4N38 couplers. Each optocoupler consists of gallium arsenide infrared LED and a silicon NPN phototransistor. These couplers are Underwriters Laboratories (UL) listed to comply with a 5000 VRMS isolation test voltage. 7 pages.

Download File 2. MOC3020 - MOC3023 Optocouplers/Optoisolators

Texas Instrument. 8 pages.