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EL817(S)(C)(TB)
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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)：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)(C)(TB) is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with an NPN phototransistor detector in a surface-mount package. 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 collector current of 50 mA. The current transfer ratio ranges from 200% to 400% at a forward current of 5 mA. Operating temperature spans from -55°C to +110°C.
Feature Summary
- High isolation voltage capability for safe circuit separation
- Compact surface-mount form factor suitable for automated assembly
- Wide operating temperature range for diverse environmental conditions
Applications
- Signal isolation in industrial control systems
- Power supply feedback loops
- Microcontroller interface circuits
Procurement Notes
Verify the specific suffix configuration against the manufacturer datasheet to ensure compatibility with required packaging and certification standards. Confirm availability status as distribution channels may vary. Ensure compliance with relevant safety approvals such as UL or VDE if required for the end application. Check RoHS compliance documentation for environmental regulations.
Selection Notes
Select this component when a compact surface-mount solution is required for galvanic isolation. Consider the 5000 Vrms isolation rating for high-voltage separation needs. Evaluate the CTR range and switching speeds against signal integrity requirements. Ensure the SMD footprint matches the PCB layout constraints.
Part Context
This part belongs to the EL817 series of optocouplers, which are widely used for isolating low-voltage control signals from higher-voltage power circuits. The series offers various packaging options including DIP and SMD configurations. The (S)(C)(TB) suffix indicates specific surface-mount packaging and tape-and-reel handling characteristics.
Replacement Considerations
Compatible alternatives within the same family include EL817(S)(C)(TU) and EL817(S)(C)-V. Verify pinout compatibility and isolation voltage ratings before substitution. Ensure thermal and mechanical specifications match the original design requirements.
