521-4

The 521-4 is the abbreviation of PS2521 which designed as one kind of large forward input type, high isolation voltage, multi photocoupler. 521-4 can be used in (1)exchange equipment; (2)fax/modem; (3)LCR adapteres. And it is lead bending type (Gull-wing) for surface mount.

Features of the 521-4 are:(1)large forward input current (IF=150 mA);(2)high Isolation voltage (BV=5 000 Vr.m.s.);(3)high collector to emitter voltage (VCEO=80 V);(4)high-speed switching (tr=3s typ., tf=5s typ.);(5)ordering number of tape product: PS2521L-1-E3, E4, F3, F4, PS2521L-2-E3, E4;(6)safety standards:UL approved: File No. E72422 (S) and CSA approved: No. CA 101391.

The absolute maximum ratings of the 521-4 can be summarized as:(1)forward current (DC):150 mA;(2)reverse voltage:6.0 V;(3)power dissipation derating:2.0 mW/°C;(4)power dissipation:200 mW/ch;(5)peak forward current:1 A;(6)collector to emitter voltage:80 V;(7)emitter to collector voltage:6 V;(8)collector current:50 mA/ch;(9)power dissipation derating:1.2 mW/°C;(10)power dissipation:120 mW/ch;(11)operating ambient temperature:-55 to +100 °C;(12)storage temperature:-55 to +150 °C;(13)isolation voltage:5 000 Vr.m.s.. If you want to know more information such as the electrical characteristics about the 521-4,please download the datasheet in www.seekic.com or www.chinaicmart.com .