EL817(S1)(B)(TU)

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

SKU:f640448001c9 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)：130% @ 5mA
Current Transfer Ratio (Max)：260% @ 5mA
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：4µs, 3µs
Input Type：DC
Output Type：Transistor
Voltage - Output (Max)：35V
Current - Output / Channel：50mA
Voltage - Forward (Vf) (Typ)：1.2V
Current - DC Forward (If) (Max)：60 mA
Vce Saturation (Max)：200mV
Operating Temperature：-55°C ~ 110°C
Mounting Type：Surface Mount
Package / Case：4-SMD, Gull Wing
Supplier Device Package：4-SMD

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EL817(S1)(B)(TU)

Overview

The EL817(S1)(B)(TU) is a surface-mount transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features a single channel with SMD-4 (SOP-4-2.54mm) packaging and provides an isolation voltage of 5000 Vrms between input and output circuits. The device supports a maximum collector current of 50 mA and a peak forward current of 60 mA, with a typical operating temperature range from -55°C to +110°C. Key electrical characteristics include a minimum current transfer ratio of 130% at IF=5mA and VCE=5V, a maximum dark power of 100 nA, and a collector-emitter breakdown voltage of 35 V.

Feature Summary

High isolation voltage capability between input and output sides
Compact dual-in-line surface mount package design
RoHS compliant construction without lead content

Applications

Industrial control systems requiring signal isolation
Consumer electronics with DC input isolation needs
Power supply feedback loop circuits

Procurement Notes

Verify the specific suffix configuration against official Everlight documentation to ensure correct pin spacing and tape-and-reel type compatibility. Confirm that the requested variant matches the required current transfer ratio grade and insulation voltage ratings for the intended application environment before finalizing procurement orders.

Selection Notes

Select this component when surface-mount assembly is required for high-isolation applications. Ensure the SOP-4 footprint aligns with PCB layout constraints. Verify that the CTR specifications meet circuit gain requirements and that the thermal operating range covers the expected ambient conditions.

Part Context

This part belongs to the EL817 series of transistor output optocouplers. The series includes various package options such as DIP-4 and SMD variants. The S1 designation typically indicates specific lead bending or spacing configurations suitable for surface mounting, distinguishing it from standard through-hole versions within the same product family.