FOD2741CS

$0.31

Description：OPTOISOLATOR 5KV 1CH TRANS 8-SMD
Series：-
Mfr：Fairchild Semiconductor
Package：Tube

SKU:477a4c828c8c Category: Transistor, Photovoltaic Output Optoisolators Brand: Fairchild Semiconductor

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Product introduction

Product Detailed Parameters

Description：OPTOISOLATOR 5KV 1CH TRANS 8-SMD
Series：-
Mfr：Fairchild Semiconductor
Package：Tube
Number of Channels：1
Voltage - Isolation：5000Vrms
Current Transfer Ratio (Min)：100% @ 10mA
Current Transfer Ratio (Max)：200% @ 10mA
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：-
Input Type：DC
Output Type：Transistor
Voltage - Output (Max)：30V
Current - Output / Channel：50mA
Voltage - Forward (Vf) (Typ)：1.5V (Max)
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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FOD2741CS

Overview

The FOD2741CS is a single-channel optically isolated amplifier manufactured by Fairchild Semiconductor. It integrates an NPN phototransistor output with a precision programmable shunt reference, specifically the KA431. The device provides high isolation voltage of 5000 Vrms and operates within a temperature range of -40°C to +85°C. Key electrical parameters include a forward voltage of 1.5 V, a current transfer ratio of 100%, a maximum collector current of 50 mA, and a maximum collector-emitter saturation voltage of 400 mV. The unit weight is 720 mg.

Feature Summary

Integrates a precision programmable shunt reference with an optocoupler for error amplification applications
Provides high-voltage electrical isolation between input and output circuits
Features an NPN phototransistor output stage for signal transmission

Applications

Error amplifier circuits in switching power supplies
Optically isolated feedback loops
Precision voltage regulation systems requiring galvanic isolation

Procurement Notes

Verify the specific suffix 'CS' indicates the surface-mount 8-SMD package variant distinct from through-hole DIP versions. Confirm RoHS compliance status as documented in the official datasheet. Ensure the component matches the manufacturer's current production status, noting that some variants in this series may be subject to obsolescence notices. Cross-reference the part number with the official onsemi or Fairchild Semiconductor documentation to confirm pinout and thermal specifications.

Selection Notes

Select this component when a combined error amplifier and isolation barrier is required in a compact surface-mount form factor. The integration of the KA431 reference simplifies circuit design by reducing external component count. Consider the 5000 Vrms isolation rating for safety-critical applications. Verify that the 50 mA collector current capability meets the load requirements of the downstream control circuitry.

Part Context

The FOD2741 series belongs to the family of optically isolated amplifiers designed for high-performance analog isolation. These devices combine linear optocouplers with precision references to provide accurate signal transmission across isolation barriers. The CS suffix denotes the surface-mount dip (SMD-DIP) package configuration, offering compatibility with automated assembly processes while maintaining the electrical characteristics of the standard DIP variants.