EL851(S1)(TU)

Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
Series：-
Mfr：Everlight Electronics Co Ltd
Package：Tape & Reel (TR)

SKU:d640316e5f81 Category: Transistor, Photovoltaic Output Optoisolators Brand: Everlight Electronics Co Ltd

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Product introduction

Product Detailed Parameters

Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
Series：-
Mfr：Everlight Electronics Co Ltd
Package：Tape & Reel (TR)
Number of Channels：1
Voltage - Isolation：5000Vrms
Current Transfer Ratio (Min)：50% @ 5mA
Current Transfer Ratio (Max)：600% @ 5mA
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：4µs, 5µs
Input Type：DC
Output Type：Transistor
Voltage - Output (Max)：350V
Current - Output / Channel：50mA
Voltage - Forward (Vf) (Typ)：1.2V
Current - DC Forward (If) (Max)：60 mA
Vce Saturation (Max)：400mV
Operating Temperature：-55°C ~ 100°C
Mounting Type：Surface Mount
Package / Case：4-SMD, Gull Wing
Supplier Device Package：4-SMD

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EL851(S1)(TU)

Overview

The EL851(S1)(TU) is a surface-mount transistor output optocoupler manufactured by Everlight Electronics. It features a 4-SMD Gull Wing package and provides robust 5kV isolation for reliable signal transmission in industrial systems. The device utilizes a DC input type with a phototransistor output. Key electrical specifications include a forward current of 60 mA, a rise time ranging from 4 to 18 µs, and a current transfer ratio between 50% and 600% at an input current of 5 mA and collector-emitter voltage of 5 V.

Feature Summary

Provides robust 5kV opto-isolation for reliable signal isolation in industrial systems
Features a high collector-emitter voltage rating of 350 V
Utilizes a compact surface-mount 4-SMD Gull Wing package design

Applications

Industrial system signal isolation
General purpose opto-isolated switching applications
Digital signal transmission requiring high voltage isolation

Procurement Notes

Verify the specific suffix (S1)(TU) against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure compatibility with existing PCB footprints designed for 4-SMD Gull Wing components. Confirm that the active status aligns with long-term supply requirements for the intended production cycle.

Selection Notes

Select this component when high voltage isolation of 5kV is required alongside a high collector-emitter voltage capability of 350 V. The wide current transfer ratio range accommodates various logic levels. Consider the surface-mount form factor for automated assembly processes where space constraints are present.

Part Context

This part belongs to the EL851 family of transistor output optocouplers from Everlight Electronics. It is distinct from similar models like the EL817 or EL851 variants with different suffixes, which may offer different packages or performance characteristics. The S1 designation typically indicates a specific internal configuration or lead finish standard within the product line.