4N31FSMT&R

$0.30

Description：6PIN DARLINGTON OUTPUT, NON-BASE
Series：-
Mfr：Isocom Components 2004 LTD
Package：Tape & Reel (TR)

SKU:17c572d637c4 Category: Transistor, Photovoltaic Output Optoisolators Brand: Isocom Components 2004 LTD

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Product introduction

Product Detailed Parameters

Description：6PIN DARLINGTON OUTPUT, NON-BASE
Series：-
Mfr：Isocom Components 2004 LTD
Package：Tape & Reel (TR)
Number of Channels：-
Voltage - Isolation：-
Current Transfer Ratio (Min)：-
Current Transfer Ratio (Max)：-
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：-
Input Type：-
Output Type：-
Voltage - Output (Max)：-
Current - Output / Channel：-
Voltage - Forward (Vf) (Typ)：-
Current - DC Forward (If) (Max)：-
Vce Saturation (Max)：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
Qualification：-

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4N31FSMT&R

Overview

The 4N31FSMT&R is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features a surface-mount DIP package with six pins and utilizes a Darlington transistor output configuration without a base lead. The device supports a maximum forward input current of 50 mA and provides an isolation voltage of 5.3 kVrms. Key electrical parameters include a minimum current transfer ratio of 100% and a maximum of 800%. Typical switching characteristics consist of a rise time of 3 µs and a fall time of 5 µs.

Feature Summary

Darlington output configuration for high current gain
Surface-mount packaging for automated assembly
High isolation voltage rating for safety
Single channel design

Applications

Industrial control systems
Power supply feedback loops
Signal isolation in microprocessor interfaces

Procurement Notes

Verify the specific suffix 'R' indicates reel packaging when sourcing. Confirm the manufacturer designation as Isocom Components 2004 LTD to ensure component authenticity. Cross-reference the 6-pin surface-mount DIP form factor against schematic footprints. Validate that the Darlington output type matches the circuit requirements for high-gain applications.

Selection Notes

Select this component when high current transfer ratio is required from a single LED input. The surface-mount format suits PCB designs requiring compact layouts. Ensure the 5.3 kVrms isolation rating meets the safety standards of the target application environment. Verify that the 50 mA maximum forward current aligns with the driving circuit capabilities.

Part Context

This part belongs to the 4N31 series of optocouplers, which are characterized by their Darlington output structure. The series is designed for applications demanding higher sensitivity than standard phototransistor outputs. The SMT variant facilitates modern manufacturing processes while maintaining the electrical performance of through-hole equivalents.