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4N25X - Isocom

Description: Optocoupler, Phototransistor Output, with Base Connection

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Symbol
4N25X - Isocom - PCB symbol
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PCB Footprints
4N25X - Isocom PCB footprint - Dual-In-Line Packages - Dual-In-Line Packages - 4N25X
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3D Models
4N25X - Isocom - 3D model - Dual-In-Line Packages - 4N25X
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4N25X Details

  • Manufacturer Part Number:

    4N25X

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.40.80.00

  • Manufacturer:

    Isocom Components

  • YTEOL:

    6

  • Additional Feature:

    UL RECOGNIZED, VDE APPROVED

  • Coll-Emtr Bkdn Voltage-Min:

    30 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

  • Operating Temperature-Max:

    100 °C

  • Operating Temperature-Min:

    -55 °C

  • Optoelectronic Device Type:

    TRANSISTOR OUTPUT OPTOCOUPLER

  • Power Dissipation-Max:

    0.16 W

  • Surface Mount:

    NO

  • Terminal Finish:

    TIN

4N25X Frequently Asked Questions (FAQs)

  • The 4N25X can operate from -40°C to 100°C, but the maximum junction temperature is 125°C.
  • To ensure reliable operation, keep the junction temperature below 100°C, and consider derating the current transfer ratio (CTR) and voltage ratings at higher temperatures.
  • The recommended LED current is 10mA to 20mA, but it can be as low as 1mA for some applications. However, a higher current may be required for higher CTR or faster switching times.
  • The 4N25X has a limited bandwidth of around 10kHz, making it suitable for low-frequency applications. For high-frequency applications, consider using a faster optocoupler like the 4N35 or 6N137.
  • Use a series resistor to limit the LED current, and consider adding a TVS (transient voltage suppressor) or a zener diode to protect the input from voltage spikes or surges.

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4N25X Overview

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