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FOD814AS
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
- Series：-
- Mfr：onsemi
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：50% @ 1mA
- Current Transfer Ratio (Max)：150% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：AC, 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 ~ 105°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The FOD814AS is a single-channel transistor output optocoupler from onsemi, featuring an NPN phototransistor and dual inverse-parallel gallium arsenide infrared LEDs for AC/DC input compatibility. It offers a 5000Vrms isolation voltage and operates within a -55°C to +105°C temperature range. Key electrical parameters include a maximum collector-emitter voltage of 70V, a collector current of 50mA, and a forward current of 50mA. The device provides a current transfer ratio between 50% and 150%, with typical rise/fall times of 4µs/3µs.
Feature Summary
- Dual LED configuration enables reliable operation with both AC and DC input signals.
- High insulation voltage rating ensures robust signal isolation in noisy environments.
- Wide operating temperature range supports deployment in demanding industrial conditions.
Applications
- Microcontroller interface circuits
- General-purpose isolation applications
- Industrial control systems
Procurement Notes
Verify the specific suffix designation against official datasheets to confirm package type and tape/reel specifications. Ensure compliance with RoHS and REACH requirements as stated in the manufacturer's environmental declarations. Cross-reference the ordering part number with the selected distributor's inventory data to confirm availability and lead times prior to finalizing procurement plans.
Selection Notes
Select this component when AC or DC input driving is required due to the dual LED structure. Consider the 5000Vrms isolation rating for safety-critical applications. Evaluate the 70V collector voltage and 50mA current limits against load requirements. Verify that the SMD package format aligns with the target PCB assembly process and thermal management strategy.
Part Context
The FOD814AS belongs to the FOD814 series of 4-pin DIP/SMD phototransistor optocouplers. This family is designed for general-purpose isolation tasks, offering a balance of speed and isolation performance. The AS suffix specifically denotes the surface-mount variant, distinguishing it from through-hole options like the FOD814A.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult official cross-reference guides for potential alternatives.
