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EL817(S1)(C)(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)：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(S1)(C)(TU)-V is a high-speed optocoupler manufactured by Everlight Electronics. It integrates an AlGaAs infrared emitting diode with a high-speed integrated output transistor, providing excellent performance for signal isolation applications. The device features a wide operating temperature range and is designed to meet stringent safety standards. Key electrical parameters include a current transfer ratio of 100-600% at IF=5mA, a collector-emitter saturation voltage of 0.4V max, and a propagation delay of 3us typical. The unit is supplied in a standard DIP-4 package.
Feature Summary
- High-speed response capability suitable for digital signal transmission
- Integrated AlGaAs LED source for efficient light emission
- Robust insulation characteristics for safe circuit isolation
- Compliant with international safety certification requirements
Applications
- Digital communication interface isolation
- Microprocessor input/output isolation circuits
- Switching power supply feedback loops
- Signal isolation in industrial control systems
Procurement Notes
Verify the specific suffix codes against official Everlight documentation to ensure correct pinout and packaging configuration. Confirm that the requested part matches the exact datasheet revision required for your design. Check for any regional compliance certifications relevant to your target market before finalizing orders.
Selection Notes
Choose this component when high-speed switching is required alongside galvanic isolation. Ensure the input current limits are respected to maintain optimal current transfer ratio. Verify that the isolation voltage rating meets the safety requirements of the end application environment.
Part Context
This model belongs to the EL817 series of optocouplers, which are widely used for general-purpose isolation. The S1 designation typically refers to specific pin spacing or lead form variations within the DIP-4 package family. The TU suffix indicates tape and reel packaging for automated assembly processes.
Replacement Considerations
Direct replacements must match the DIP-4 package and similar CTR ranges. Verify pin compatibility carefully as suffixes may alter lead configurations. Consult manufacturer cross-reference lists for verified equivalents from other suppliers.
