FOD2743CTV

$0.31

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

SKU:ef516d2298bc Category: Transistor, Photovoltaic Output Optoisolators Brand: Fairchild Semiconductor

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Product introduction

Product Detailed Parameters

Description：OPTOISOLATOR 5KV 1CH TRANS 8-DIP
Series：-
Mfr：Fairchild Semiconductor
Package：Tube
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：Through Hole
Package / Case：8-DIP (0.400", 10.16mm)
Supplier Device Package：8-DIP
Grade：-
Qualification：-

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FOD2743CTV

Overview

The FOD2743CTV is a single-channel transistor output optocoupler manufactured by Fairchild Semiconductor. It features an infrared emitting diode coupled to a phototransistor, providing electrical isolation with a rated insulation voltage of 5000 Vrms. The device operates within a temperature range of -40°C to +85°C and utilizes an 8-pin DIP package. Key electrical parameters include a maximum collector-emitter breakdown voltage of 70 V, a maximum forward current of 20 mA, and a typical forward voltage of 1.07 V. The collector-emitter saturation voltage is specified at a maximum of 400 mV.

Feature Summary

Provides high-voltage electrical isolation between input and output circuits
Integrates an infrared LED with a phototransistor for signal transmission
Designed for error amplifier coupling applications

Applications

Error amplifier coupling in power supplies
Industrial control systems requiring galvanic isolation
Signal transmission across isolated ground planes

Procurement Notes

Verify the manufacturer origin as Fairchild Semiconductor or its successor entities, noting that Fairchild's semiconductor division was acquired by onsemi. Confirm RoHS compliance status and lead finish specifications against the specific datasheet revision. Ensure the package type matches the required 8-DIP form factor and validate the operating temperature range suitability for the target environment.

Selection Notes

Select this component when a single-channel transistor output isolator with 5000 Vrms insulation is required. Consider the 70 V collector-emitter voltage rating and 50 mA output current capability for load matching. Evaluate the CTR (Current Transfer Ratio) specifications if precise gain linearity is necessary for the error amplifier circuit design.

Part Context

This part belongs to the FOD2743 series of optocouplers, which are designed for general-purpose isolation and error sensing applications. The series includes variants with different packaging options such as SMD and through-hole DIP configurations. These devices are commonly used in feedback loops where signal integrity and isolation safety standards are critical.