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EL817S1(A)(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)：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 EL817S1(A)(TU)-V is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an AlGaAs infrared LED emitter with an NPN phototransistor detector in a compact surface-mount package. The device provides electrical isolation between input and output circuits, rated at 5000 Vrms insulation voltage. Key electrical parameters include a collector-emitter breakdown voltage of 35 V minimum, a maximum forward current of 60 mA, and a maximum forward voltage of 1.4 V. The unit supports a continuous collector current of 50 mA and operates within a temperature range of -55 °C to +110 °C.
Feature Summary
- High isolation voltage capability between input and output channels
- Compact small outline surface-mount package design
- Compliant with lead-free and RoHS environmental standards
Applications
- Signal isolation in industrial control systems
- Interface circuits for microprocessor-based logic systems
- Switching power supply feedback loops
Procurement Notes
Verify the specific suffix codes against the manufacturer datasheet to confirm pinout configuration and tape-and-reel specifications. Ensure compliance requirements match project needs. Confirm availability status as distribution channels may vary. Cross-reference ordering information directly with Everlight documentation to avoid specification mismatches.
Selection Notes
Select this component when high isolation voltage and compact SMD footprint are required. Verify that the CTR range meets circuit gain requirements. Check thermal management capabilities for the operating environment. Ensure the input current limits align with the driving source voltage and resistance values.
Part Context
This part belongs to the EL817 series of transistor output optocouplers from Everlight. The series is widely used for general-purpose signal isolation. The S1 designation typically indicates a specific pin pitch or package variant within the SOP-4 family. The TU suffix denotes tape and reel packaging for automated assembly processes.
Replacement Considerations
Direct substitutes include other EL817 variants from different manufacturers such as PC817 or FOC-817, provided pin compatibility and electrical ratings are verified. Always check datasheets for differences in CTR ranges and insulation voltage ratings before substitution.
