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    | Partname: | TLP523-4 |  | Description: | 4-channel IRed & photo−transistor, for programmable controllers, DC−output module and solid state relay |  | Manufacturer: | Toshiba |  | Package: | 11−20A3 |  | Pins: | 16 |  | 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. |  |  Click here to download TLP523-4 Datasheet*)
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