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EL817(S)(B)(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)：130% @ 5mA
- Current Transfer Ratio (Max)：260% @ 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)(B)(TB) 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 in a surface-mount package. The device provides high isolation voltage of 5000 Vrms between input and output circuits. It operates within a temperature range of -55°C to +110°C. The component is RoHS compliant and halogen-free, ensuring environmental safety standards are met for modern electronic assemblies.
Feature Summary
- High isolation voltage capability between input and output sections
- Compact surface-mount design suitable for automated assembly
- RoHS compliant and halogen-free construction
Applications
- Signal transmission between circuits of different potentials
- Telecommunication equipment interface isolation
- System appliances and measuring instruments
- Programmable controller input/output modules
Procurement Notes
Verify the specific suffix configuration against the official datasheet to ensure correct lead spacing and tape reel type. Confirm that the procurement source provides valid UL and VDE certification documentation. Ensure the component matches the required current transfer ratio specifications for the intended circuit application before finalizing orders.
Selection Notes
Select this component when surface-mount technology is required for signal isolation applications. Consider the operating temperature range and isolation voltage requirements relative to the target system environment. Evaluate the pin configuration compatibility with the printed circuit board layout constraints during the design phase.
Part Context
This part belongs to the EL817 series of photocouplers, which are widely used for electrical isolation. The series includes various packaging options such as DIP and SMD variants. The EL817(S)(B)(TB) specifically denotes the surface-mount version with defined lead bending characteristics for reliable soldering on PCBs.
Replacement Considerations
Check for direct substitutes within the EL817 family or equivalent transistor output optocouplers from other manufacturers. Verify pinout compatibility and isolation voltage ratings before substitution. Ensure the replacement meets the same regulatory approvals and environmental compliance standards.
