4N25, 4N26, 4N27, 4N28 Vishay Semiconductors Optocoupler, Phototransistor Output, with Base ConnectionFEATURES • Isolation test voltage 5000 VRMS A 1 6 B • Interfaces with common logic families C 2 5 C • Input-output coupling capacitance < 0.5 pF • Industry standard dual-in-line 6 pin package NC 3 4 E • Compliant to RoHS directive 2002/95/EC and in accordance to WEEE 2002/96/EC 21842 APPLICATIONS i179004-5 • AC mains detection • Reed relay driving DESCRIPTION • Switch mode power supply feedback The 4N25 family is an industry standard single channel • Telephone ring detection phototransistor coupler. This family includes the 4N25, • Logic ground isolation 4N26, 4N27, 4N28. Each optocoupler consists of gallium arsenide infrared LED and a silicon NPN phototransistor. • Logic coupling with high frequency noise rejection AGENCY APPROVALS • UL1577, file no. E52744 • BSI: EN 60065:2002, EN 60950:2000 • FIMKO: EN 60950, EN 60065, EN 60335 ORDER INFORMATIONPARTREMARKS 4N25 CTR > 20 %, DIP-6 4N26 CTR > 20 %, DIP-6 4N27 CTR > 10 %, DIP-6 4N28 CTR > 10 %, DIP-6 ABSOLUTE MAXIMUM RATINGS (1)PARAMETERTEST CONDITIONSYMBOLVALUEUNITINPUT Reverse voltage VR 5 V Forward current IF 60 mA Surge current t ≤ 10 μs IFSM 3 A Power dissipation Pdiss 100 mW OUTPUT Collector emitter breakdown voltage VCEO 70 V Emitter base breakdown voltage VEBO 7 V IC 50 mA Collector current t ≤ 1 ms IC 100 mA Power dissipation Pdiss 150 mW www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83725 132 Rev. 1.8, 07-Jan-10