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4N28 Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
4N28QTC238Yes

part 4N28 is an optocoupler manufactured by various companies, including QT Optoelectronics (QTC).

The part 4N28 is an optocoupler manufactured by various companies, including QT Optoelectronics (QTC). The 4N28 is a 6-pin DIP (Dual In-line Package) optocoupler that consists of a gallium arsenide infrared LED and a silicon phototransistor. Key specifications for the 4N28 include:

  • Isolation Voltage: 5300 Vrms
  • Collector-Emitter Voltage (VCEO): 30 V
  • Collector Current (IC): 100 mA
  • Current Transfer Ratio (CTR): 20% to 100% (typically)
  • LED Forward Current (IF): 60 mA (maximum)
  • LED Forward Voltage (VF): 1.15 V to 1.5 V (typically)
  • Response Time: 2 µs to 5 µs (typically)
  • Operating Temperature Range: -55°C to +100°C

These specifications are standard for the 4N28 optocoupler and are consistent across manufacturers, including QTC. Always refer to the specific datasheet for precise details.

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