PC494C

The PC494C is designed as one kind of high transfer efficiency, general purpose photocoupler that can be used in wide range of applications such as (1)system appliances, measuring instruments; (2)I/O interfaces for computers; (3)signal transmission between circuits of different potentials and impedances.

Features of the PC494C are:(1)High current transfer ratio (CTR: MIN. 50 % at IF= 10 mA, VCE = 10 V);(2)High isolation voltage between input and output;(3)TTL compatible output;(4)Recognized by UL file No. E64380;(5)easy mounting on PWB.

The absolute maximum ratings of the PC494C can be summarized as:(1)Forward current: 80 mA;(2)Peak forward current: 3 A;(3)Reverse voltage: 6 V;(4)Power dissipation: 150 mW;(5)Collector-emitter voltage: 30 V;(6)Emitter-collector voltage: 5 V;(7)Collector current: 100 mA;(8)Collector power dissipation: 150 mW;(9)Total power dissipation: 250 mW;(10)Isolation voltage: 2500 Vrms;(11)Operating temperature: -55 to +100 °C;(12)Storage temperature: -55 to +150 °C;(13)Soldering temperature: 260 °C.

The electrical characteristics of PC494C can be summarized as:(1)Forward voltage: 1.2 to 1.5 V;(2)Peak forward voltage: 3.0 to 4.0 V;(3)Reverse current: 10 uA;(4)Terminal capacitance: 50 pF;(5)Current transfer ratio: 100 to 500;(6)Collector-emitter saturation voltage: 1.0 V;(7)Floating capacitance: 1.0 pF;(8)Cut-off frequency: 80 kHz;(9)Rise time: 5 us;(10)fall time: 40 or 100 us. If you want to know more information such as the electrical characteristics about the PC494C, please download the datasheet in www.seekic.com or www.chinaicmart.com.