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EL817(S1)(D)(TU)-VG
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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)：300% @ 5mA
- Current Transfer Ratio (Max)：600% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：6µs, 8µs
- 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)：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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Overview
The EL817(S1)(D)(TU)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with an NPN phototransistor detector to provide electrical isolation between input and output circuits. The device features a surface-mount 4-pin SOP package designed for compact PCB layouts. It supports a maximum collector-emitter voltage of 35V and offers high isolation capabilities suitable for signal transmission in noisy environments.
Feature Summary
- Provides galvanic isolation via optical coupling between input LED and output phototransistor
- Utilizes a compact surface-mount 4-pin SOP package for space-constrained designs
- Ensures reliable signal transfer with high common-mode transient immunity
Applications
- Signal isolation in industrial control systems
- Feedback loop isolation in switching power supplies
- Communication interface isolation in data acquisition equipment
Procurement Notes
Verify the specific suffix 'VG' against the official Everlight datasheet to confirm pinout, CTR grading, and packaging specifications. Ensure the component matches the required isolation voltage ratings for your circuit design. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.
Selection Notes
Select this component when a small footprint surface-mount optocoupler is required for DC signal isolation. Consider the NPN phototransistor output configuration for standard logic interfacing. Verify that the operating temperature range meets the environmental requirements of the target application.
Part Context
This part belongs to the EL817 series, a widely used family of optocouplers known for cost-effectiveness and reliability. The series typically includes various lead configurations and CTR grades. The S1 designation often indicates a specific creepage distance or safety certification compliance within the broader product line.
Replacement Considerations
Direct replacements may include other EL817 variants from Everlight or equivalent transistor-output optocouplers from manufacturers like Vishay or Sharp. Ensure pin compatibility and isolation voltage ratings match before substitution.
