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TOSHIBA TLP521-1 Transistor Output Optocoupler SOP-4


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The TOSHIBA TLP521−1, −2 and −4 consist of a photo−transistor optically coupled to a gallium arsenide infrared emitting diode. The TLP521−2 offers two isolated channels in an eight lead plastic SOP package, while the TLP521−4 provides four isolated channels in a sixteen plastic SOP/DIP package.


  • No. of Channels: 1 Channel
  • Optocoupler Case Style: SOP
  • No. of Pins: 4Pins
  • Forward Current If Max: 25mA
  • Isolation Voltage: 2.5kV
  • Forward Diode Voltage: 1V to 1.3V
  • Current transfer ratio: 50%
  • Operating Temperature: -25°C to +85°C

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