FOD817ASD

$0.43

Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:6552bd3ca074 Category: Transistor, Photovoltaic Output Optoisolators Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Number of Channels：1
Voltage - Isolation：5000Vrms
Current Transfer Ratio (Min)：80% @ 5mA
Current Transfer Ratio (Max)：160% @ 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：Surface Mount
Package / Case：4-SMD, Gull Wing
Supplier Device Package：4-SMD
Grade：-
Qualification：-

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FOD817ASD

Overview

The FOD817ASD is a single-channel surface-mount phototransistor optocoupler from onsemi. It integrates a gallium arsenide infrared emitting diode with a silicon phototransistor. The device features a maximum isolation voltage of 5000 Vrms and operates within a temperature range of -55°C to +110°C. Key electrical parameters include a collector-emitter breakdown voltage of 70 V, a forward current of 50 mA, and a typical rise/fall time of 18 μs. The standard package is a 4-pin SMD configuration.

Feature Summary

Integrates a gallium arsenide infrared LED with a silicon phototransistor for signal transmission
Provides high-voltage isolation capability up to 5000 Vrms between input and output circuits
Designed for surface-mount assembly in compact electronic applications

Applications

General-purpose digital signal isolation
Switch-mode power supply feedback loops
Microcontroller interface isolation

Procurement Notes

Verify the specific suffix designation against official datasheets to confirm pinout and performance characteristics. Ensure the selected component matches the required isolation voltage and thermal operating range for the target application environment. Cross-reference manufacturer documentation for any updates regarding compliance standards or package variations.

Selection Notes

Select this component when surface-mount packaging is required for single-channel isolation. Compare the CTR specifications against circuit requirements to ensure adequate switching margins. Verify that the 50 mA forward current rating aligns with the driving source capabilities and that the 70 V collector voltage meets load requirements.

Part Context

This part belongs to the FOD817 series of transistor-output optocouplers. It shares functional similarities with through-hole variants like the FOD817B but utilizes a surface-mount form factor. The series is widely used for basic galvanic isolation in industrial and consumer electronics where moderate speed and high isolation are needed.