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Optocoupler DC-IN 1-CH Transistor DC-OUT 4-Pin PDIP Black Box

Ovaga Certification

Brands: ON Semiconductor, LLC

Mfr.Part #: FOD817B

Datasheet: FOD817B Datasheet (PDF)

Package/Case: DIP-4

Product Type: Optocouplers / Photocouplers

RoHS Status:

Stock Condition: 3759 pcs, New Original

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FOD817B General Description

The FOD814 consists of two gallium arsenide infrared emitting diodes, connected in inverse parallel, driving a silicon phototransistor output in a 4-pin dual in-line package. The FOD817 Series consists of a gallium arsenide infrared emitting diode driving a silicon phototransistor in a 4-pin dual in-line package.



  • AC Input Response (FOD814)
  • Current Transfer Ratio in Selected Groups:
  • FOD814: 20-300%
  • FOD814A: 50-150%
  • FOD817: 50-600%
  • FOD817A: 80-160%
  • FOD817B: 130-260%
  • FOD817C: 200-400%
  • FOD817D: 300-600%
  • Minimum BVCEO of 70 V Guaranteed
  • Safety and Regulatory Approvals
  • UL1577, 5,000 VACRMS for 1 Minute
  • DIN EN/IEC60747-5-5




Parameter Value Parameter Value
Manufacturer: onsemi Product Category: Transistor Output Optocouplers
RoHS: Details Mounting Style: Through Hole
Package / Case: PDIP-4 Number of Channels: 1 Channel
Isolation Voltage: 5000 Vrms Output Type: NPN Phototransistor
Current Transfer Ratio - Min: 130 % Current Transfer Ratio - Max: 260 %
If - Forward Current: 50 mA Vf - Forward Voltage: 1.4 V
Maximum Collector Emitter Voltage: 70 V Maximum Collector Current: 50 mA
Maximum Collector Emitter Saturation Voltage: 200 mV Rise Time: 18 us
Fall Time: 18 us Vr - Reverse Voltage: 6 V
Pd - Power Dissipation: 200 mW Minimum Operating Temperature: - 55 C
Maximum Operating Temperature: + 110 C Series: FOD817B
Packaging: Tube Brand: onsemi / Fairchild
Collector-Emitter Breakdown Voltage: 70 V Configuration: 1 Channel
Current Transfer Ratio: 130 % Height: 4 mm
Length: 5.1 mm Product Type: Transistor Output Optocouplers
Factory Pack Quantity: 2000 Subcategory: Optocouplers
Width: 7 mm


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Credit Card Credit Card charge 3.5% service fee.
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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Datasheet PDF

Preliminary Specification FOD817B PDF Download

Key points

  • The FOD817B is an opto-isolator chip that consists of an infrared emitting diode and a phototransistor. It is commonly used for electrical isolation in various applications, such as in power supplies, motor control circuits, and industrial automation. The chip helps to protect sensitive components from high voltage and noise, ensuring reliable and safe operation of electronic systems.
  • Equivalent

    Some equivalent products of the FOD817B chip include PC817, 4N25, and 4N35.
  • Features

    The FOD817B is an optoisolator with a phototransistor output. It features a high current transfer ratio, low input current, and high isolation voltage. It is designed for use in applications such as sensing, feedback control circuits, and general-purpose switching circuits.
  • Pinout

    The FOD817B is a 4-pin phototransistor optocoupler. The pinout includes an anode, cathode, collector, and emitter. The device is commonly used for isolation, voltage sensing, and general-purpose switching applications in circuits.
  • Manufacturer

    The manufacturer of the FOD817B is Fairchild Semiconductor. Fairchild Semiconductor is a global company specializing in the design, development, and manufacture of semiconductors and integrated circuits for various industries, including automotive, consumer electronics, industrial, and telecommunications.
  • Application Field

    The FOD817B is typically used in applications that require high isolation voltages and low power consumption. It is commonly used in power supplies, motor control, communication systems, and optical sensors.
  • Package

    The FOD817B chip is available in a DIP-4 package type, which stands for Dual In-line Package. Its form factor is a rectangular shape with two parallel rows of pins on opposite sides. The size of the package is about 9.6mm x 6.5mm x 3.6mm.

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