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FOD8523S
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH DARL 4-SMD
- Series：-
- Mfr：onsemi
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：1000% @ 1mA
- Current Transfer Ratio (Max)：15000% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：100µs, 20µs
- Input Type：DC
- Output Type：Darlington
- Voltage - Output (Max)：300V
- Current - Output / Channel：150mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：1.2V
- Operating Temperature：-30°C ~ 100°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The FOD8523S is a single-channel transistor output optocoupler from onsemi, designed for lighting applications. It features a Photodarlington output and operates in an SMT-4 package. Key electrical parameters include a minimum current transfer ratio of 1000% and a maximum of 15000%. The device supports a maximum collector-emitter voltage of 300 V and a maximum collector current of 150 mA. It has a forward voltage of 1.4 V at 50 mA input current. Isolation voltage is rated at 5000 Vrms. Rise time is 300 us and fall time is 100 us.
Feature Summary
- High current transfer ratio capability for efficient signal transmission
- High voltage isolation rating for safety-critical circuits
- Photodarlington output structure for high gain
- Surface mount packaging for automated assembly
Applications
- Lighting control systems
- Digital logic interface circuits
- Microprocessor input isolation
Procurement Notes
Verify the specific suffix 'S' indicates the surface mount variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor declarations. Ensure the ordering part number matches the required package type and insulation voltage ratings for your specific design constraints before finalizing procurement.
Selection Notes
Select this component when high current transfer ratio is required for driving loads with low input current. The 300 V collector-emitter voltage rating suits higher voltage switching applications compared to standard 80 V variants. Consider the SMT-4 package size for board space constraints. Verify that the 300 us rise time meets the speed requirements of the target application circuit.
Part Context
This device belongs to the FOD series of optocouplers from onsemi. It is distinct from other series members by its specific photodarlington output configuration and surface mount packaging. The FOD8523S is categorized under transistor output optocouplers, differing from logic output or MOSFET output types within the broader product family.
Replacement Considerations
Check for direct substitutes within the FOD8523 family or compatible photodarlington optocouplers with similar CTR ranges and voltage ratings. Ensure any replacement maintains the 5000 Vrms isolation rating and SMD package compatibility.
