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EL817(S)(B)(TB)-VG
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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)：130% @ 5mA
- Current Transfer Ratio (Max)：260% @ 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(S)(B)(TB)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an infrared emitting diode optically coupled to an NPN phototransistor, providing electrical isolation with a maximum insulation voltage of 5000 Vrms. The device supports a collector-emitter breakdown voltage of 35 V and a continuous collector current of 50 mA. It operates within a temperature range of -55 °C to +110 °C. The component is RoHS compliant and halogen-free, available in surface-mount configurations including SMD and tape/reel formats.
Feature Summary
- High isolation voltage capability between input and output circuits
- Compact surface-mount package design for automated assembly
- Compliance with environmental standards including RoHS and halogen-free requirements
Applications
- Signal transmission between circuits of different potentials
- Interface applications in measuring instruments
- Telecommunication equipment signal isolation
Procurement Notes
Verify the specific suffix configuration (S, B, or TB) against the required package type and reel specification before ordering. Confirm that the VG variant meets all necessary regulatory approvals for the target market. Ensure compatibility with existing surface-mount placement processes and reflow soldering profiles specified in the official datasheet.
Selection Notes
Select this component when high-density surface-mount integration is required alongside robust galvanic isolation. The NPN phototransistor output is suitable for digital switching applications. Consider the operating temperature range and current transfer ratio specifications to ensure adequate noise immunity and signal integrity in the final circuit design.
Part Context
This part belongs to the EL817 series of photocouplers, which are widely used for isolating low-voltage control circuits from higher-voltage power stages. The series offers various packaging options, including through-hole DIP and surface-mount variants, allowing designers to choose the form factor best suited for their PCB layout constraints.
Replacement Considerations
Direct substitutes include other EL817 series surface-mount variants such as EL817(S)(C)(TB)-VG or EL817(S)(A)(TB)-VG, provided the current transfer ratio grades match the application requirements. Verify pinout compatibility and isolation voltage ratings when cross-referencing with components from other manufacturers.
