hutton close, crowther ind est, washington, tyne & wear ne38 0ah, england mailto:sales@isocom.uk.com - tel: +44 (0)191 4166546 - fax: +44 (0)191 4155055 circuit description absolute maximum ratings electrical characteristics similar optocouplers home page mst8, MST81 photon coupled interrupter circuit description the mst8 series each consist of a gallium arsenide infrared emitting diode and a silicon phototransistor housed in a plastic package. all electrical parameters are 100% tested. specifications are guaranteed to a cumulative 0.65% aql. applications printers, tracker ball, mouse, chart recorders, industrial applications, coin machines.
absolute maximum ratings (ta=25c) storage temperature: operating temperature: lead soldering: -55c to +100c -55c to +100c 260c for 5s, 1.6mm from case input diode forward dc current: reverse dc voltage: peak forward current: power dissipation: derate linearly: 60ma 6v 3a (1 p.w. 300pps) 100mw 1.33mw/c above 25c output transistor collector-emitter voltage v ceo : emitter-collector voltage v eco : collector current l c : power dissipation: derate linearly: 30v 6v 100ma 150mw 2.0mw/c above 25c electro-optical characteristics (ta=25c) input parameter conditions min typ max unit c l capacitance v=0, f=1mhz 30 pf v f forward voltage i f =60ma 1.7 v i r reverse current v r =5v 100 na output v (br)r reverse breakdown voltage i r =10a 6 v v (br)ceo breakdown voltage i c =1ma 30 v v (br)eco breakdown voltage i e =100a 6 v l ceo collector dark current v ce =25v 100 na c ce capacitance v ce =5v, f=1mhz 3.3 5 pf coupled electrical characteristics (25c; note 1 ) symbol conditions min typ max unit mst8 MST81 i ce(on) i f =5ma, v ce =5v 0.15 0.3 ma i f =20ma, v ce =5v 1 2 ma i f =30ma, v ce =5v 1.9 3 ma v ce(sat) i f =(30; MST81=20) ma, i c =1.8ma 0.4 v t on v cc =5v, i f =30ma, r l =2.5kohm 8 s t off v cc =5v, i f =30ma, r l =2.5kohm 50 s
notes 1. stray irradiation can alter values of characteristics. adequate shielding should be provided. isocom takes great effort to ensure accurate data, but regrettably cannot be held liable for any error on its website. visit file lists to confirm old printouts are up-to-date. contents
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