4N31S

Description：OPTOISO 5.3KV DARL W/BASE 6-SMD
Series：-
Mfr：onsemi
Package：Tube

SKU:f0d3685935a0 Category: Transistor, Photovoltaic Output Optoisolators Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：OPTOISO 5.3KV DARL W/BASE 6-SMD
Series：-
Mfr：onsemi
Package：Tube
Number of Channels：1
Voltage - Isolation：5300Vrms
Current Transfer Ratio (Min)：50% @ 10mA
Current Transfer Ratio (Max)：-
Turn On / Turn Off Time (Typ)：5µs, 40µs (Max)
Rise / Fall Time (Typ)：-
Input Type：DC
Output Type：Darlington with Base
Voltage - Output (Max)：30V
Current - Output / Channel：150mA
Voltage - Forward (Vf) (Typ)：1.2V
Current - DC Forward (If) (Max)：80 mA
Vce Saturation (Max)：1.2V
Operating Temperature：-55°C ~ 100°C
Mounting Type：Surface Mount
Package / Case：6-SMD, Gull Wing
Supplier Device Package：6-SMD

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4N31S

Overview

The onsemi 4N31S is a single-channel optoisolator featuring a Darlington transistor output with an accessible base terminal. It provides high isolation voltage of 5300Vrms and supports a maximum forward current of 80 mA. The device operates within a temperature range of -55°C to 100°C and utilizes a 6-SMD surface-mount package.

Feature Summary

Darlington output configuration with dedicated base pin for enhanced control
High isolation voltage rating of 5300Vrms
Wide operating temperature range suitable for industrial environments

Applications

Industrial automation control systems
General-purpose signal isolation
Microcontroller interface circuits

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package variant matches design requirements. Check for obsolescence status as availability may be limited. Ensure storage conditions comply with moisture sensitivity levels specified in the datasheet.

Selection Notes

Select this component when high isolation voltage and fast switching are required. The base terminal allows for adjustable gain or faster turn-off times. Compare specifications against alternative models if surface-mount constraints differ from standard DIP packages.

Part Context

This part belongs to the 4N3x series of optocouplers, widely used for electrical isolation between low-voltage control circuits and higher-voltage loads. The SMD variant offers space-saving advantages over traditional DIP versions while maintaining similar electrical performance characteristics.