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EL817(S1)(TU)-V
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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)：50% @ 5mA
- Current Transfer Ratio (Max)：600% @ 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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Overview
The EL817(S1)(TU)-V is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and operates with a DC input. The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage of 35 V, maximum forward current of 60 mA, and maximum on-state current of 50 mA. The current transfer ratio ranges from 200% to 600% at a forward current of 5 mA and collector-emitter voltage of 5 V. It supports surface mount installation in a 4-pin package.
Feature Summary
- High isolation voltage capability of 5000 Vrms between input and output channels
- Compact small outline surface mount package design
- Compliant with lead-free and RoHS environmental standards
Applications
- Signal isolation in industrial control systems
- Power supply feedback loops
- Microcontroller interface circuits
Procurement Notes
Verify the specific suffix (S1) against the manufacturer's latest datasheet to confirm pinout and CTR binning. Ensure the ordering code matches the required tape and reel quantity for surface mount assembly processes. Confirm compliance certifications such as UL and VDE are valid for the target market regulations.
Selection Notes
Select this component when a compact SMD solution is required for galvanic isolation. The 5000 Vrms rating suits applications demanding robust noise immunity. Verify that the 50 mA output current capacity meets the load requirements of the receiving circuitry without exceeding thermal limits.
Part Context
This part belongs to the EL817 series of optocouplers, which are widely used for signal transmission across isolated barriers. The S1 designation typically indicates specific Current Transfer Ratio (CTR) grading or packaging variations within the standard EL817 family. The TU suffix denotes tape and reel packaging suitable for automated placement equipment.
Replacement Considerations
Direct substitutes may include other EL817 variants with compatible pinouts and electrical ratings. Verify that alternative parts match the 5000 Vrms isolation voltage and 35 V collector-emitter breakdown voltage specifications.
