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4N38 Optocoupler Phototransistor IC DIP-8 Package

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₹32.00 (excluding 18% GST)

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Description

The 4N38 optocoupler consists of an infrared light-emitting diode (LED) and an NPN phototransistor housed in a DIP-8 package. The LED and phototransistor are optically coupled, meaning the LED’s light activates the phototransistor without any direct electrical connection. This setup allows for electrical isolation between the input (LED side) and output (phototransistor side) of the circuit.

Features

  • High Electrical Isolation: Provides high voltage isolation between input and output, typically up to 5kV RMS, which helps protect sensitive components and systems from high voltage transients and noise.
  • Phototransistor Output: Features an NPN phototransistor that can be used to drive logic circuits or small loads.
  • Standard DIP-8 Package: The device is packaged in a DIP-8 configuration, which is easy to mount on PCBs and compatible with through-hole assembly.
  • Low Input Current Requirement: Requires a low input current for operation, making it suitable for low-power applications.
  • Reliable Performance: Offers consistent performance in various environmental conditions, thanks to its robust design.

Specifications

  • Input LED Forward Voltage (V_F): Typically 1.2V to 1.4V at 10mA forward current.
  • Input LED Forward Current (I_F): Maximum 60mA.
  • Output Collector-Emitter Voltage (V_CEO): Maximum 30V.
  • Output Collector Current (I_C): Maximum 50mA.
  • Collector-Emitter Saturation Voltage (V_CE(sat)): Typically 0.2V at 10mA collector current.
  • Current Transfer Ratio (CTR): Typically 50% to 600%, depending on input current and operating conditions.
  • Isolation Voltage: Typically rated at 5kV RMS.
  • Operating Temperature Range: Typically -55°C to +100°C.

Applications

  • Signal Isolation: Ideal for isolating different sections of a circuit, preventing high voltage or noise from affecting sensitive components.
  • Switching Power Supplies: Commonly used to provide isolation between control and power stages in switching power supplies.
  • Data Communication: Ensures safe and reliable transmission of data in systems where electrical isolation is critical.
  • Microcontroller Interfacing: Protects microcontrollers and other low-voltage devices when interfacing with higher voltage components, such as relays, motors, and sensors.
  • Industrial Control Systems: Used in industrial automation and control systems to isolate and protect sensors, actuators, and other field devices from the control electronics.

Note

* Product Images are shown for illustrative purposes only and may differ from actual product

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