EL357NB(TB)-VG

Description：OPTOISO 3.75KV 1CH TRANS 4-SOP
Series：-
Mfr：Everlight Electronics Co Ltd
Package：Tape & Reel (TR)

SKU:17173cae6453 Category: Transistor, Photovoltaic Output Optoisolators Brand: Everlight Electronics Co Ltd

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Product introduction

Product Detailed Parameters

Description：OPTOISO 3.75KV 1CH TRANS 4-SOP
Series：-
Mfr：Everlight Electronics Co Ltd
Package：Tape & Reel (TR)
Number of Channels：1
Voltage - Isolation：3750Vrms
Current Transfer Ratio (Min)：130% @ 5mA
Current Transfer Ratio (Max)：260% @ 5mA
Turn On / Turn Off Time (Typ)：-
Rise / Fall Time (Typ)：3µs, 4µs
Input Type：DC
Output Type：Transistor
Voltage - Output (Max)：80V
Current - Output / Channel：50mA
Voltage - Forward (Vf) (Typ)：1.2V
Current - DC Forward (If) (Max)：50 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-SOP (2.54mm)
Grade：-
Qualification：-

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EL357NB(TB)-VG

Overview

The EL357NB(TB)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides 3750 Vrms insulation voltage for circuit isolation. The device utilizes a compact 4-pin SOP (2mm) surface-mount package, designed for DC input applications. This component is classified as obsolete and discontinued by the manufacturer.

Feature Summary

Provides high-voltage electrical isolation between input and output circuits
Utilizes a compact 4-pin SOP surface-mount package design
Features an NPN phototransistor output stage

Applications

General purpose signal isolation in electronic circuits
DC input interface modules
Industrial control systems requiring galvanic isolation

Procurement Notes

This component is officially listed as obsolete and discontinued by Everlight Electronics. Availability is restricted to surplus or secondary market sources. Verify the authenticity of any available units through official datasheets and manufacturer documentation before procurement. Ensure replacement strategies are implemented due to end-of-life status.

Selection Notes

Designers should consider this part only for legacy system maintenance or repair where specific form-factor constraints exist. Due to its discontinued status, new designs must select alternative active components from the manufacturer's current portfolio that offer similar isolation ratings and package dimensions to ensure long-term supply chain stability.

Part Context

The EL357NB(TB)-VG belongs to the EL357 series of ultra-small SOP optocouplers produced by Everlight Electronics. This series was engineered to provide efficient signal transmission with minimal board space consumption. The specific model variant denotes the NPN output configuration and the TB suffix indicating the specific packaging type within the product line.