FOD2742B

$1.39

Description：OPTOISO 2.5KV 1CH TRANS 8-SOIC
Series：-
Mfr：onsemi
Package：Tube

SKU:ef8ba14cc058 Category: Transistor, Photovoltaic Output Optoisolators Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：OPTOISO 2.5KV 1CH TRANS 8-SOIC
Series：-
Mfr：onsemi
Package：Tube
Number of Channels：1
Voltage - Isolation：2500Vrms
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)：70V
Current - Output / Channel：50mA
Voltage - Forward (Vf) (Typ)：1.2V
Current - DC Forward (If) (Max)：-
Vce Saturation (Max)：400mV
Operating Temperature：-25°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Grade：-
Qualification：-

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FOD2742B

Overview

The FOD2742B is a photovoltaic output optoisolator from onsemi, housed in an 8-SOIC surface-mount package. It features a single channel with DC input and provides 2500Vrms isolation voltage. The device operates within a temperature range of -25°C to 85°C. Key electrical parameters include a maximum collector-emitter voltage of 70V, a typical forward voltage of 1.2V, and a maximum saturation voltage of 400mV. The current transfer ratio ranges from 100% to 200% at 10mA input, with a maximum output current of 50mA per channel.

Feature Summary

Photovoltaic output architecture for high-impedance signal transmission
High isolation voltage capability for safety-critical applications
Surface-mount packaging for automated assembly integration

Applications

Error amplifier circuits in power supplies
Signal isolation in industrial control systems
Feedback loop isolation in motor drives

Procurement Notes

Verify the specific suffix 'BV' against the requested model 'FOD2742B'. Datasheets indicate 'BV' denotes tube packaging, while other suffixes may indicate tape-and-reel options. Confirm that the component status aligns with design requirements, as some variants in this family have been marked as not recommended for new designs. Ensure the selected packaging matches the intended manufacturing process.

Selection Notes

Select this component when high isolation voltage and low leakage current are required for precision analog signal isolation. The photovoltaic output offers high input impedance, suitable for interfacing with sensitive control logic. Consider the 8-SOIC package dimensions for PCB layout constraints. Evaluate the thermal operating range to ensure compatibility with the target environment's temperature extremes.

Part Context

The FOD2742B belongs to the FOD2741 series of optically isolated error amplifiers. This series is designed for applications requiring precise signal transfer across isolation barriers. The device utilizes a gallium arsenide infrared LED coupled with a photovoltaic detector array to achieve isolation without direct electrical contact between input and output sides.