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Product Detailed Parameters
- Description:OPTOISOLATOR 5KV 1CH TRANS 8-SMD
- Series:-
- Mfr:onsemi
- Package:Tape & Reel (TR),Cut Tape (CT)
- 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 onsemi FOD2743BSD is a single-channel optoisolator featuring a transistor output, designed for electrical isolation between input and output circuits. It operates within a temperature range of -40°C to +85°C and utilizes an 8-SMD surface-mount package. Key electrical parameters include a maximum collector-emitter voltage of 70V, a peak forward current of 20mA, and a typical forward voltage of 1.07V. The device provides 5000Vrms insulation voltage and supports a collector current up to 50mA with a saturation voltage of 400mV.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits
- Integrates a phototransistor output stage for signal transmission
- Supports surface-mount installation in compact designs
Applications
- Error amplifier coupler circuits
- Optically isolated amplifier systems
- General-purpose DC signal isolation
Procurement Notes
Verify the specific suffix against official datasheets to confirm pinout and packaging variations. Confirm RoHS compliance status as required by project specifications. Check for obsolescence notices or lifecycle changes directly from the manufacturer before finalizing procurement plans.
Selection Notes
Select this component when high isolation voltage is required in a small surface-mount footprint. Ensure the application voltage does not exceed the 70V collector-emitter rating. Verify that the required current transfer ratio aligns with the specified minimum values at the operating forward current.
Part Context
This part belongs to the FOD2743 series of optoisolators from onsemi. The series includes variants such as FOD2743CS and FOD2743BV, which share similar functional characteristics but may differ in packaging or specific electrical tolerances. The BSD variant specifically denotes the surface-mount configuration.
Replacement Considerations
FOD2743BS is listed as a similar alternative.
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