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FOD815
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH DARL 4-DIP
- Series：-
- Mfr：onsemi
- Package：Box
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：600% @ 1mA
- Current Transfer Ratio (Max)：7500% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：60µs, 53µs
- Input Type：DC
- Output Type：Darlington
- Voltage - Output (Max)：35V
- Current - Output / Channel：80mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：1V
- Operating Temperature：-30°C ~ 105°C
- Mounting Type：Through Hole
- Package / Case：4-DIP (0.300", 7.62mm)
- Supplier Device Package：4-DIP
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Overview
The onsemi FOD815 is a high-gain optoisolator featuring a Darlington phototransistor output. It provides electrical isolation with a maximum forward voltage of 1.4V and supports a maximum input current of 50mA. The device offers a typical rise time of 18μs and a typical fall time of 18μs. It operates within a temperature range of -30°C to 105°C. The component is housed in a 4-DIP package with a pin spacing of 7.62mm (0.300 inches).
Feature Summary
- High current transfer ratio suitable for sensitive signal detection.
- Darlington output configuration for enhanced gain.
- Standard through-hole mounting for general circuit integration.
Applications
- General-purpose digital signal isolation.
- Microprocessor system interface circuits.
- Solid-state relay driver applications.
Procurement Notes
Verify the specific datasheet version as this component may be classified as obsolete or not recommended for new designs. Confirm availability through authorized distributors, as stock levels vary. Ensure the 4-DIP package dimensions match your PCB footprint requirements before ordering.
Selection Notes
Select this component when high current gain is required from a single-channel optocoupler. The Darlington output structure allows for driving higher load currents compared to standard phototransistor outputs. Consider the slower switching speed inherent to Darlington configurations when designing for high-frequency applications.
Part Context
The FOD815 belongs to the FOD series of optoisolators manufactured by onsemi. It utilizes a GaAs infrared LED coupled to a Darlington phototransistor. The device is designed for robust electrical isolation between input control circuits and output loads, commonly used in industrial and consumer electronics where galvanic separation is necessary.
Replacement Considerations
Check for direct replacements such as the PC817 series or HCPL-2630 depending on specific performance needs. Verify that substitute components meet the same isolation voltage and package dimension requirements to ensure mechanical compatibility.
