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EL817(S)(TU)
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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(S)(TU) is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an infrared emitting diode coupled to an NPN phototransistor within a surface-mount package. The device provides electrical isolation with a rated insulation voltage of 5000 Vrms and supports a maximum collector current of 50 mA. It operates across a wide temperature range from -55°C to +110°C. The component is available in reel or cut tape packaging formats.
Feature Summary
- Provides galvanic isolation between input and output circuits via optical transmission
- Features high insulation voltage capability for safe signal transfer
- Designed for compact surface-mount integration
Applications
- Industrial control systems requiring signal isolation
- Power supply feedback loops
- Communication equipment interface isolation
Procurement Notes
Verify the specific suffix configuration against the manufacturer datasheet, as variations exist within the EL817 family. Confirm availability status directly with authorized distributors due to potential supply constraints. Ensure the selected variant matches the required current transfer ratio and package type for the intended application design.
Selection Notes
Select this component when a standard NPN output optocoupler with high isolation voltage is required for surface-mount assembly. Consider the operating temperature range and current transfer ratio specifications relative to the load requirements. Verify compatibility with existing PCB footprints and reflow soldering profiles during the design phase.
Part Context
This part belongs to the EL817 series of transistor output optocouplers produced by Everlight. The series is widely utilized for general-purpose isolation tasks in electronic circuits. The specific model denotes a surface-mount variant designed for automated assembly processes while maintaining the performance characteristics typical of the broader product line.
Replacement Considerations
Cross-reference with other SMD transistor output optocouplers offering similar isolation ratings and pin configurations. Verify that substitute components meet the same thermal and electrical specifications before implementation.
