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EL817(S1)(C)(TB)-G
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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)：200% @ 5mA
- Current Transfer Ratio (Max)：400% @ 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)(C)(TB)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode and an NPN phototransistor detector within a compact surface-mount package. The device provides high isolation voltage of 5000 Vrms between input and output circuits, ensuring reliable signal transmission in electrically noisy environments. It supports a maximum collector current of 50 mA and operates across a wide temperature range from -55°C to +110°C.
Feature Summary
- High isolation voltage capability for safe circuit separation
- Compact surface-mount design suitable for automated assembly
- Wide operating temperature range for diverse environmental conditions
Applications
- Signal isolation in industrial control systems
- Power supply feedback loops
- Communication interface isolation
Procurement Notes
Verify the specific suffix G against the manufacturer's latest datasheet to confirm compliance with RoHS directives and halogen-free requirements. Ensure the ordering part number matches the exact pin configuration and packaging format required for your PCB layout. Cross-reference safety approval numbers such as UL or VDE if regulatory certification is mandatory for your final product application.
Selection Notes
Select this component when a small form factor is required alongside standard transistor output characteristics. Consider the CTR range and switching speed specifications relative to your signal frequency requirements. Verify that the surface-mount footprint dimensions align with your manufacturing capabilities and board space constraints compared to through-hole alternatives.
Part Context
This part belongs to the EL817 series, a widely recognized family of optocouplers used for general-purpose isolation. The S1 designation typically indicates a specific lead pitch or package variant within the SOP-4 or similar small outline packages. This series is designed to replace traditional DIP-4 optocouplers in space-constrained modern electronic designs while maintaining comparable electrical performance metrics.
Replacement Considerations
Direct replacements include other EL817 series variants with compatible surface-mount packages, such as EL817(S)(C)(TU) or EL817S1(C)(TU). Verify pinout compatibility and insulation clearance distances before substitution.
