Feature●High Current transfer ratio (CTR : MIN. 10% at IF = 10mA, VCE = 10V )●Response time( ton : TYP. 3µs at VCC = 10V, IC = 2mA, RL = 100Ω )●Input-output isolation voltage Viso = 2,500Vrms●Safety approval * UL approved * cUL approved * CSA approved * DEMKO approved * VDE approved * CQC approved●Example Applications: Hybrid substrates that require high density mounting, Programmable controllersDescription A Photocoupler is the most common and preferred choice for providing isolated feedback in regulation loop. The 4N25 family is an industry standard single channel phototransistor coupler. Each optocoupler consists of gallium arsenide infrared LED and a silicon NPN phototransistor.