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4N38 - Vishay

Description: Transistor Output Optocouplers Phototransistor Out

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Symbol
4N38 - Vishay - PCB symbol
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PCB Footprints
4N38 - Vishay PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - DIP-6
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3D Models
4N38 - Vishay - 3D model - Dual-In-Line Packages - DIP-6
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4N38 Details

  • Manufacturer Part Number:

    4N38

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    DIP-6

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.40.80.00

  • Factory Lead Time:

    10 Weeks

  • Manufacturer:

    Vishay Intertechnologies

  • YTEOL:

    6

  • Coll-Emtr Bkdn Voltage-Min:

    80 V

  • Configuration:

    SINGLE

  • Current Transfer Ratio-Min:

    20%

  • Current Transfer Ratio-Nom:

    20%

  • Dark Current-Max:

    50 nA

  • Forward Current-Max:

    0.06 A

  • Forward Voltage-Max:

    1.5 V

  • Isolation Voltage-Max:

    5300 V

  • JESD-609 Code:

    e3

  • Mounting Feature:

    THROUGH HOLE MOUNT

  • Number of Elements:

    1

  • On-State Current-Max:

    0.05 A

  • Operating Temperature-Max:

    100 °C

  • Operating Temperature-Min:

    -55 °C

  • Optoelectronic Device Type:

    TRANSISTOR OUTPUT OPTOCOUPLER

  • Power Dissipation-Max:

    0.15 W

  • Surface Mount:

    NO

  • Terminal Finish:

    Matte Tin (Sn)

4N38 Frequently Asked Questions (FAQs)

  • The maximum allowable voltage that can be applied to the input pins is 5V, but it's recommended to keep it below 4.5V to ensure reliable operation.
  • To ensure proper biasing, connect a resistor (R1) between the anode of the LED and the positive supply voltage, and another resistor (R2) between the cathode of the LED and ground. The values of R1 and R2 depend on the specific application and desired current.
  • The recommended operating temperature range for the 4N38 is -40°C to 100°C. However, the device can tolerate storage temperatures between -40°C and 150°C.
  • To prevent electrostatic discharge (ESD) damage, handle the 4N38 by the body or use an anti-static wrist strap. Ensure the workspace and equipment are also ESD-protected.
  • The 4N38 is not suitable for high-frequency applications (>1 MHz) due to its limited bandwidth. For high-frequency applications, consider using a faster optocoupler like the 6N137 or 7N137.

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