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EL817(S1)(A)(TD)-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)：80% @ 5mA
- Current Transfer Ratio (Max)：160% @ 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)(A)(TD)-V is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an NPN phototransistor output and provides 5000 Vrms isolation voltage. The component has a minimum Current Transfer Ratio of 80% at 5mA input current. It is housed in a surface-mount package with a tape-and-reel shipping configuration.
Feature Summary
- Provides electrical isolation via infrared LED to NPN phototransistor coupling
- Offers high insulation voltage rating for safety applications
- Designed for surface-mount assembly processes
Applications
- Signal isolation in industrial control systems
- Interface circuits between microcontrollers and power stages
- Digital signal transmission across isolated boundaries
Procurement Notes
Verify the specific suffix (A)(TD)-V against the manufacturer's latest datasheet to confirm pinout, CTR binning, and packaging details. Confirm RoHS compliance status and check for obsolete status indicators as availability may be restricted. Ensure the ordering part number matches the required reel quantity and tape specifications for your assembly line.
Selection Notes
Select this component when a surface-mount transistor output optocoupler with 5000 Vrms isolation is required. The 80% minimum CTR at 5mA ensures reliable switching for digital signals. Verify that the SMD footprint and reflow soldering profile are compatible with your PCB design and manufacturing capabilities compared to through-hole alternatives.
Part Context
This part belongs to the EL817 series of optocouplers from Everlight. The series typically includes various packages and CTR grades. The (S1) designation often indicates a specific safety certification or package variant. The (TD)-V suffix denotes the specific tape-and-reel packaging and potentially lead-free composition.
Replacement Considerations
Direct substitutes include other EL817 variants such as EL817(S1)(D)(TA)-V or EL817(S1)(C)(TB)-V, provided they match the required CTR grade and package type. Cross-brand equivalents like PC817 or 4N35 require verification of isolation voltage and CTR characteristics.
