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FOD817A300W
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-DIP
- Series：-
- Mfr：onsemi
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：80% @ 5mA
- Current Transfer Ratio (Max)：160% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Through Hole
- Package / Case：4-DIP (0.400", 10.16mm)
- Supplier Device Package：4-DIP
- Grade：-
- Qualification：-
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Overview
The FOD817A300W is a single-channel phototransistor output optocoupler from onsemi, designed for through-hole mounting in a 4-pin MDIP package. It provides electrical isolation with a maximum isolation voltage of 5000Vrms. The device features an NPN phototransistor output capable of handling a maximum collector current of 50mA and a collector-emitter voltage of 70V. Key electrical parameters include a typical forward voltage of 1.2V at a maximum DC forward input current of 50mA. The current transfer ratio ranges from 80% to 160% at 5mA. Typical switching times are 4µs rise and 3µs fall. It operates within a temperature range of -55°C to +110°C.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits using a phototransistor configuration.
- Features a standard 4-pin DIP package suitable for through-hole PCB assembly.
- Offers a wide operating temperature range for reliable performance in various environments.
Applications
- General-purpose logic isolation
- Power supply feedback loops
- Signal transmission across isolated boundaries
Procurement Notes
Verify the specific suffix '300W' against the manufacturer's latest datasheet to confirm packaging details and compliance status. Ensure the ordering part number matches the required CTR bin (A grade) and package type. Cross-reference certification marks such as UL and VDE with current regulatory requirements for the target application.
Selection Notes
Select this component when a standard phototransistor output with moderate speed and high isolation voltage is required. Compare the 80-160% CTR range against circuit gain requirements. Consider the 4-pin DIP form factor for manual or wave soldering processes. Evaluate thermal dissipation capabilities within the specified temperature limits.
Part Context
This part belongs to the FOD817 series, a widely used family of general-purpose optocouplers. The 'A' designation typically indicates a specific Current Transfer Ratio bin, while '300W' denotes the tube packaging format. It serves as a common replacement for legacy Fairchild Semiconductor parts in industrial and consumer electronics designs.
Replacement Considerations
- FOD817C300W
- FOD817B300W
FAQ
What is the typical switching speed of the FOD817A300W?
The typical rise time is 4µs and the typical fall time is 3µs.
Does the FOD817A300W support AC input signals?
No, the datasheet specifies DC input for the internal LED driver.
