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EL817(S1)(B)(TD)-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)：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(S1)(B)(TD)-V is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features a compact surface-mount package with leads bent for mounting, providing high isolation voltage between input and output. The device utilizes an infrared LED coupled to an NPN phototransistor, ensuring reliable signal transmission in isolated circuits. Key electrical parameters include a maximum collector-emitter voltage of 35 V and a maximum forward current of 60 mA. It 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 channels
- Compact dual-in-line surface mount package design with bent leads
- Compliance with international safety approvals including UL, VDE, and CSA
Applications
- Signal isolation in industrial control systems
- Switching power supply feedback loops
- Microcontroller input/output isolation interfaces
Procurement Notes
Verify the specific suffix configuration against the official datasheet to ensure compatibility with required lead bending and tape-and-reel specifications. Confirm that the selected variant matches the intended surface-mount assembly process and meets all necessary regional safety certification requirements for the target application environment.
Selection Notes
Select this component when surface-mount technology is required for space-constrained designs. Ensure the circuit design accounts for the specific current transfer ratio characteristics and switching times defined in the technical data sheet. Verify that the operating voltage and current limits remain within the specified absolute maximum ratings to maintain device reliability.
Part Context
This part belongs to the EL817 series of photocouplers, which are widely used for electrical isolation. The S1 designation indicates a specific surface-mount package variation with bent leads, distinguishing it from standard through-hole DIP versions. This series is recognized for its robust isolation performance and compliance with global safety standards.
Replacement Considerations
Equivalent parts include other EL817 series variants such as EL817S1(B)(TU)-G or EL817S1(D)(TU)-G, provided they match the surface-mount package and electrical specifications. Always verify pinout compatibility and isolation voltage ratings before substitution.
