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    | Partname: | TLP523 |  
    | Description: | IRed & photo−transistor, for programmable controllers, DC−output module and solid state relay |     
    | Manufacturer: | Toshiba |  
    | Package: | 11−5B2 |  
    | Pins: | 4 |  
    | Oper. temp.: | -55 to 100 |  
    | Datasheet: | PDF (251K). Click here to download *) |  
    The TOSHIBA TLP523, -2 and -4 consists of a gallium arsenide infrared emitting diode coupled with a silicon, darlington connected, phototransistor which has an integral base-emitter resistor to optimize switching speed and elevated temperature characteristics. The TLP523-2 offers two isolated channels in a eight lead plastic DIP package, while the TLP523-4 provide four isolated channels per package.  |  
    
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    Click here to download TLP523 Datasheet*) | 
  
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