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EL817(S1)(B)(TD)-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)：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(S1)(B)(TD)-G 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 detector, housed in a surface-mount SOP-4 package with a lead pitch of 2.54mm. The device provides high isolation voltage between input and output terminals, rated at 5000 Vrms. Key electrical parameters include a collector-emitter breakdown voltage of 35V minimum, a maximum forward current of 50mA, and a typical rise/fall time of 4µs/3µs. The unit operates within a temperature range of -55°C to +110°C and complies with RoHS standards.
Feature Summary
- High isolation voltage capability between input and output circuits
- Compact surface-mount packaging for automated assembly
- Compliance with halogen-free environmental requirements
Applications
- Signal transmission between circuits of different potentials
- Interface applications in programmable controllers
- Isolation in measuring instruments and telecommunication equipment
Procurement Notes
Verify the specific suffix configuration against the manufacturer's official datasheet to ensure alignment with required pin spacing and tape-and-reel specifications. Confirm that the component meets all necessary regional safety certifications for the intended end-use application before finalizing procurement orders.
Selection Notes
Select this component when surface-mount technology integration is required alongside standard transistor output characteristics. Ensure the design accommodates the specified 2.54mm lead pitch and verify that the 5000Vrms isolation rating satisfies the circuit's safety clearance requirements.
Part Context
This part belongs to the EL817-G series, which includes various DIP and SMD configurations. The S1 designation indicates a specific surface-mount variant optimized for modern PCB layouts. The TD suffix typically denotes tape-and-reel packaging for high-volume manufacturing processes.
Replacement Considerations
Direct substitutes include other EL817-series variants from Everlight or equivalent transistor-output optocouplers from manufacturers like Lite-On or Toshiba, provided the package footprint and electrical ratings match.
