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EL357ND(TA)-VG
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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)：300% @ 5mA
- Current Transfer Ratio (Max)：600% @ 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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Overview
The EL357ND(TA)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode and a phototransistor detector within a compact SOP-4 surface-mount package measuring 4.1mm x 4.4mm x 2mm. The device provides electrical isolation with a rated RMS voltage of 3750V. Key electrical parameters include a maximum forward current of 50mA, a collector-emitter saturation voltage of 200mV at specified test conditions, and a load voltage rating of 80V. The unit supports a DC input type and operates within a temperature range of -55°C to +110°C.
Feature Summary
- Provides reliable galvanic isolation between digital and analog signal circuits using infrared photoelectric conversion.
- Features a compact SOP-4 SMD footprint designed for high-density PCB layout requirements.
- Ensures safety in high-voltage environments through robust 3750Vrms insulation capabilities.
Applications
- Industrial control systems requiring signal isolation
- Communication equipment interface circuits
- Power supply feedback loops
Procurement Notes
Verify the specific suffix designation against official Everlight documentation to confirm exact performance grades and packaging specifications. Ensure compatibility with existing board layouts regarding the SOP-4 footprint dimensions. Confirm RoHS compliance status for the specific production batch prior to integration into final assemblies.
Selection Notes
Select this component when a single-channel transistor output isolator is required for cost-sensitive applications. The SOP-4 package offers space efficiency compared to larger DIP alternatives. Consider the 80V collector-emitter voltage limit and 50mA drive current constraints during circuit design to ensure operation within safe limits.
Part Context
This part belongs to the EL357N series of optocouplers from Everlight Electronics. The series is characterized by its use of standard plastic packages and general-purpose transistor outputs suitable for basic isolation tasks. The 'D' suffix typically denotes specific manufacturing lot or tape-and-reel packaging variations within the product line.
Replacement Considerations
Direct substitutes may include other single-channel transistor output optocouplers in SOP-4 packages with comparable isolation voltages. Verify pinout compatibility and electrical ratings such as CTR and switching speeds before substitution.
