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EL817(S)(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(S)(D)(TU)-VG is a surface-mount transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with an NPN phototransistor detector in a compact 4-SMD package. The device provides electrical isolation between input and output circuits, rated at 5000 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 35V and a continuous collector current of 50mA. The unit operates within a temperature range of -55°C to +110°C.
Feature Summary
- Optical coupling between infrared LED and NPN phototransistor for signal transmission
- High insulation voltage capability for circuit protection
- Surface-mount design for automated assembly processes
- Wide operating temperature range suitable for industrial environments
Applications
- Signal isolation in microprocessor control systems
- Switching power supply feedback loops
- Solid-state relay driver circuits
- Digital communication interface isolation
Procurement Notes
Verify the specific suffix VG against official Everlight documentation to confirm pinout orientation and lead material specifications. Confirm RoHS compliance status through the manufacturer's latest environmental declaration. Ensure the selected variant matches the required isolation voltage rating for the target application safety standards.
Selection Notes
Select this component when surface-mount technology is required for high-isolation applications. Compare the CTR range and switching speed requirements against the datasheet limits. Ensure the PCB footprint matches the 4-SMD package dimensions provided in the mechanical drawings. Verify thermal management needs for the specified operating temperature range.
Part Context
This part belongs to the EL817 series of optocouplers, which are widely used for general-purpose isolation. The series offers various packaging options including DIP and SMD configurations. The EL817 family is known for its reliability in industrial and consumer electronics applications requiring galvanic isolation.
Replacement Considerations
Check for direct substitutes such as EL817(S)(C)(TU) or EL817(S)(B)(TU) variants from Everlight. Verify pin compatibility and electrical parameter equivalence before substitution. Consult official cross-reference lists for approved replacements.
