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FOD617CSD
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：100% @ 10mA
- Current Transfer Ratio (Max)：200% @ 10mA
- 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)：1.35V
- Current - DC Forward (If) (Max)：50 mA
- Vce Saturation (Max)：400mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The FOD617CSD is a single-channel phototransistor output optocoupler manufactured by Fairchild Semiconductor. It integrates a gallium arsenide infrared emitting diode with a silicon phototransistor in a 4-pin dual in-line package. Key electrical parameters include an isolation voltage of 5000 Vrms, a maximum collector-emitter voltage of 70 V, and a forward current rating of 50 mA. The device features a typical current transfer ratio of 200% and operates within a temperature range of -55°C to +110°C.
Feature Summary
- High input-output isolation voltage capability for safety-critical applications
- Compatible with Pb-free IR reflow soldering processes
- Certified by C-UL, UL, and VDE standards
Applications
- Power supply regulators
- Digital logic inputs
- Microprocessor inputs
Procurement Notes
Verify the specific suffix 'SD' against official Fairchild or onsemi documentation to confirm packaging configuration, as suffixes often denote tape-and-reel quantities or specific handling requirements. Confirm RoHS compliance status through the manufacturer's latest product change notices. Ensure the component source is authorized to avoid counterfeit risks given the part's discontinued status.
Selection Notes
Select this component when high operating temperatures are required compared to standard counterparts. The FOD617C variant specifically offers a current transfer ratio group of 100–200%, suitable for applications needing consistent gain. Verify that the 4-pin SMD gull-wing package fits the PCB layout constraints and that the 70V collector-emitter voltage meets the circuit's switching requirements.
Part Context
The FOD617CSD belongs to the FOD617 Series, which consists of a gallium arsenide infrared emitting diode driving a silicon phototransistor. This series is designed for compact 4-pin packages and offers higher operating temperatures than standard FODXXX counterparts. The 'C' designation indicates a specific current transfer ratio grouping, while 'SD' typically refers to the surface mount package and reel packaging.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. The datasheet indicates the FOD617 Series is obsolete and not in production by Fairchild Semiconductor. Alternative sourcing may require checking distributor inventories for New Old Stock or consulting onsemi for equivalent modern replacements.
