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EL817S(A)(TA)-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 EL817S(A)(TA)-V is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with an NPN phototransistor detector in a compact surface-mount package. The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a maximum forward current of 50 mA, collector-emitter breakdown voltage of 35 V minimum, and a nominal current transfer ratio of 200%. It operates within a temperature range of -55°C to +110°C and complies with RoHS standards.
Feature Summary
- Optical coupling between infrared LED and NPN phototransistor for signal transmission
- High insulation voltage capability ensuring circuit safety
- Surface-mount design suitable for automated assembly processes
- Compliance with international safety certifications including UL and VDE
Applications
- Signal isolation in industrial control systems
- Power supply feedback loops
- Microcontroller interface circuits requiring galvanic isolation
Procurement Notes
Verify the specific suffix configuration against the manufacturer datasheet to ensure compatibility with required isolation ratings and packaging types. Confirm that the component meets all necessary regulatory approvals for the target market. Check availability status as distribution channels may vary. Ensure proper handling procedures are followed during storage and installation to maintain device integrity.
Selection Notes
Select this component when a single-channel isolated switch is required with moderate current transfer characteristics. Consider the surface-mount footprint constraints and thermal operating limits. Evaluate the need for specific safety certifications such as UL or VDE recognition. Compare current transfer ratio requirements against the nominal specifications provided in the technical documentation.
Part Context
This part belongs to the EL817 series of photocouplers from Everlight Electronics. The series offers various configurations including DIP and SMD packages with different lead forms and tape-and-reel options. The EL817 family is widely used for general-purpose isolation applications due to its reliability and standardized pinout compatibility with other industry equivalents.
Replacement Considerations
Consult official substitution lists for verified equivalent parts. Generic replacements may differ in isolation voltage or current transfer ratio specifications.
