FOD2743ASDV

Description：OPTOISOLATOR 5KV 1CH TRANS 8-SMD
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:dcf806be5711 Category: Transistor, Photovoltaic Output Optoisolators Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：OPTOISOLATOR 5KV 1CH TRANS 8-SMD
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Number of Channels：1
Voltage - Isolation：5000Vrms
Current Transfer Ratio (Min)：50% @ 1mA
Current Transfer Ratio (Max)：100% @ 1mA
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)：1.07V
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

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FOD2743ASDV

Overview

The FOD2743ASDV is an optically isolated amplifier from onsemi, featuring a single channel with NPN phototransistor output. It operates within a temperature range of -40°C to +85°C and utilizes an SMD-DIP-8 package. Key electrical specifications include a maximum collector-emitter voltage of 70 V, a maximum collector current of 50 mA, and a power dissipation of 145 mW. The device provides 5000 Vrms insulation voltage and has a typical forward voltage of 1.2 V. It incorporates a reference voltage of 2.495 V and exhibits a current transfer ratio of 50%. The component is currently classified as obsolete.

Feature Summary

Integrates error amplifier functionality with optical isolation for signal transmission
Provides high-voltage isolation capability between input and output circuits
Features transistor output stage suitable for digital or linear interface applications

Applications

Error amplifier coupler in power supply feedback loops
Signal isolation in industrial control systems
Voltage reference buffering in measurement equipment

Procurement Notes

Verify component status carefully as the FOD2743ASDV is officially listed as obsolete by the manufacturer. Confirm availability through authorized distributors or secondary markets if sourcing is required. Ensure that any substitute components meet the original design specifications for isolation voltage, pinout compatibility, and thermal performance before integration into new designs.

Selection Notes

Select this component only for legacy system maintenance or repair where specific historical design constraints apply. Evaluate alternative modern optocouplers for new designs due to the obsolete status. Consider factors such as package footprint compatibility and electrical parameter matching when identifying replacement parts for existing circuit boards.

Part Context

This part belongs to the FOD2743B series of optically isolated amplifiers manufactured by onsemi. It is designed for applications requiring precise error signal transmission across isolation barriers. The series typically includes variants with different packaging options and minor electrical characteristic variations, all sharing the core architecture of an integrated error amplifier coupled with a phototransistor output stage.