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EL817(S2)(A)(TU)-G
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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)：50% @ 5mA
- Current Transfer Ratio (Max)：600% @ 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(S2)(A)(TU)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode optically coupled to an NPN phototransistor, housed in a surface-mount 4-SMD (gull-wing) package. The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage of 35 V, maximum forward current of 60 mA, and a typical rise/fall time of 4 µs/3 µs. It operates within a temperature range of -55°C to 110°C.
Feature Summary
- High isolation voltage capability between input and output for enhanced safety
- Compact surface-mount gull-wing package design for automated assembly
- RoHS compliant construction with halogen-free materials
Applications
- Signal isolation in industrial control systems
- Power supply feedback loops
- Communication interface isolation
Procurement Notes
Verify the specific suffix configuration against the manufacturer datasheet to ensure compatibility with required lead spacing and tape-and-reel specifications. Confirm that the S2 designation aligns with the intended surface-mount footprint requirements for the target PCB layout before finalizing procurement orders.
Selection Notes
Select this component when a surface-mount solution is required for signal isolation applications demanding high voltage withstand capabilities. Ensure the circuit design accommodates the specified 35 V collector-emitter voltage limit and the 60 mA maximum forward current rating for the internal LED driver.
Part Context
This part belongs to the EL817 series of photocouplers, which are widely used for galvanic isolation. The S2 variant specifically denotes a surface-mount package option, distinguishing it from through-hole DIP versions. The series is recognized for its reliability in various electronic isolation scenarios.
Replacement Considerations
Direct substitutes may include other EL817 series variants with compatible pinouts, such as EL817S1 or EL817S3, provided the package dimensions and electrical characteristics meet the design requirements. Verify mechanical fit and electrical specs before substitution.
