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Product Detailed Parameters
- Description:OPTOISOLATOR 5KV 1CH TRANS 4-DIP
- Series:-
- Mfr:onsemi
- Package:Tube
- Number of Channels:1
- Voltage - Isolation:5000Vrms
- Current Transfer Ratio (Min):130% @ 5mA
- Current Transfer Ratio (Max):260% @ 5mA
- 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):1.2V
- Current - DC Forward (If) (Max):50 mA
- Vce Saturation (Max):200mV
- Operating Temperature:-55°C ~ 110°C
- Mounting Type:Through Hole
- Package / Case:4-DIP (0.300", 7.62mm)
- Supplier Device Package:4-DIP
- Grade:-
- Qualification:-
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Overview
The FOD817B300 is a single-channel phototransistor output optocoupler from onsemi, housed in a 4-pin PDIP package. It features a maximum collector-emitter voltage of 70V and a peak forward input current of 50mA. The device provides an isolation voltage of 5000Vrms with a typical rise and fall time of 18μs. The current transfer ratio ranges from 130% to 260%. Operating temperatures span from -55°C to +110°C, with a power dissipation rating of 200mW.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits
- Utilizes a standard four-pin through-hole DIP package for easy integration
- Delivers fast switching performance suitable for general signal transmission
Applications
- General-purpose signal isolation in industrial control systems
- Interface circuits for logic-to-power level translation
- Switching applications requiring galvanic isolation
Procurement Notes
Verify the specific suffix B300 against official datasheets to confirm it denotes the tube packaging format rather than a functional variant. Ensure the procurement specification matches the required CTR bin (130-260%) and that the 5000Vrms isolation rating meets the safety standards of the target application environment.
Selection Notes
Select this component when a standard NPN phototransistor output is required for cost-effective isolation. Consider the 18μs switching speed limitations compared to high-speed alternatives. Verify that the 70V collector-emitter voltage and 50mA collector current limits accommodate the load requirements without exceeding the 200mW power dissipation threshold at elevated temperatures.
Part Context
This part belongs to the FOD817 series, a widely recognized family of transistor-output optocouplers. The FOD817B300 specifically represents the B-grade current transfer ratio variant packaged in tubes. It serves as a direct replacement for legacy Fairchild Semiconductor parts within the same product lineage, maintaining pinout and electrical compatibility.
Replacement Considerations
- FOD817B
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