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FOD073LR2
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Product Detailed Parameters
- Description：OPTOISOLTR 2.5KV 2CH DARL 8-SOIC
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Number of Channels：2
- Voltage - Isolation：2500Vrms
- Current Transfer Ratio (Min)：400% @ 500µA
- Current Transfer Ratio (Max)：7000% @ 500µA
- Turn On / Turn Off Time (Typ)：5µs, 25µs
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Darlington
- Voltage - Output (Max)：7V
- Current - Output / Channel：60mA
- Voltage - Forward (Vf) (Typ)：1.35V
- Current - DC Forward (If) (Max)：20 mA
- Vce Saturation (Max)：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The FOD073LR2 is a dual-channel optocoupler featuring Darlington transistor outputs, manufactured by Fairchild Semiconductor. It provides electrical isolation with a rated voltage of 2500Vrms between input and output channels. The device utilizes an 8-SOIC surface-mount package. Key electrical specifications include a maximum DC forward current of 20 mA for the input side and a collector output current capability of 60 mA. The unit operates within a temperature range of -40°C to +85°C.
Feature Summary
- Dual-channel configuration providing independent signal isolation paths
- Darlington output stage design for high current transfer ratio
- Robust insulation barrier rated at 2500Vrms
- Surface-mount construction in an 8-pin SOIC package
Applications
- Industrial control systems requiring galvanic isolation
- Signal transmission across isolated ground domains
- Logic interface circuits for microcontroller isolation
Procurement Notes
Verify the manufacturer origin, as this component was originally produced by Fairchild Semiconductor and is now managed by onsemi. Confirm the specific suffix indicates the correct tape-and-reel packaging variant if required for automated assembly processes. Ensure the datasheet version matches the production batch specifications.
Selection Notes
Select this component when dual-channel isolation is necessary within a compact footprint. The Darlington output structure offers higher gain compared to standard transistor outputs, suitable for driving loads directly. Verify that the 60 mA output current rating meets the load requirements and that the 2500Vrms isolation voltage satisfies the safety standards of the target application environment.
Part Context
This part belongs to the FOD073 series of logic IC output optocouplers. The series includes variants such as the FOD073L and FOD073LV. These devices are designed for general-purpose isolation applications where reliable signal transmission is critical. The manufacturing lineage traces back to Fairchild Semiconductor before corporate restructuring.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with equivalent dual-channel Darlington optocouplers only after verifying pinout compatibility and isolation voltage ratings.
