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FOD2743BS
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 8-SMD
- Series：-
- Mfr：onsemi
- Package：Bulk
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：50% @ 1mA
- Current Transfer Ratio (Max)：100% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.07V
- Current - DC Forward (If) (Max)：-
- Vce Saturation (Max)：400mV
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-SMD, Gull Wing
- Supplier Device Package：8-SMD
- Grade：-
- Qualification：-
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Overview
The FOD2743BS is a single-channel optoisolator manufactured by onsemi, featuring a phototransistor output and an 8-SMD gull-wing package. It provides 5000Vrms isolation voltage with a maximum load voltage of 70V. The device operates within a temperature range of -40°C to +85°C and supports a forward current of 20mA. Key electrical characteristics include a typical forward voltage of 1.2V, a collector-emitter saturation voltage of up to 400mV, and a minimum output current of 50mA per channel.
Feature Summary
- Provides high-voltage galvanic isolation between input and output circuits
- Utilizes a phototransistor output stage for signal transmission
- Designed for surface-mount assembly in compact electronic systems
Applications
- Error amplifier coupling in power supply feedback loops
- Signal isolation in industrial control systems
- Interface circuits requiring DC input isolation
Procurement Notes
Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level (MSL 1) before integration. Check datasheet revisions for any parameter updates. Ensure storage conditions maintain component integrity prior to soldering.
Selection Notes
Select this component when 5000Vrms isolation is required in a small SMD footprint. Consider the 8-SMD package constraints and thermal management needs. Evaluate the phototransistor output speed against application timing requirements. Compare alternative models if higher current transfer ratios are necessary.
Part Context
This part belongs to the FOD2743 series of optoisolators from onsemi. It shares functional similarities with variants like the FOD2743CS and FOD2743BSD, differing primarily in packaging or specific electrical tolerances. The series is designed for general-purpose isolation applications requiring reliable signal transmission across isolated boundaries.
Replacement Considerations
The FOD2743CS is listed as a similar replacement option. Verify pinout compatibility and electrical specifications before substitution. Ensure the alternative meets the same isolation voltage and operating temperature requirements.
