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EL817(S1)(B)(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)：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)(TU)-V is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode and an NPN phototransistor in a compact surface-mount SOP-4 package with a 2.54mm pin pitch. The device provides electrical isolation between input and output circuits, featuring a high isolation voltage of 5000 Vrms and a minimum creepage distance exceeding 7.62 mm. Key electrical parameters include a collector-emitter breakdown voltage of 35 V, a maximum forward current of 60 mA, and a maximum collector current of 50 mA. The current transfer ratio (CTR) ranges from 50% to 600% at a forward current of 5 mA and a collector-emitter voltage of 5 V. It operates within a temperature range of -55 °C to +110 °C and complies with RoHS standards.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits using optical transmission.
- Features a compact surface-mount SOP-4 package designed for automated assembly processes.
- Certified for safety compliance including UL and VDE approvals.
Applications
- Signal isolation in industrial control systems
- Power supply feedback loops
- Communication equipment interface circuits
Procurement Notes
Verify the specific suffix 'V' against the manufacturer's official datasheet to confirm exact mechanical dimensions and certification status. Ensure compatibility with surface-mount reflow soldering profiles. Confirm that the required CTR bin matches the application design specifications, as performance varies across the specified range.
Selection Notes
Select this component when a small footprint and high isolation voltage are required for DC signal transmission. Consider the 50-600% CTR range during circuit design to ensure reliable switching under varying conditions. Verify thermal management requirements for operation near the upper limit of the specified temperature range.
Part Context
This part belongs to the EL817 series of transistor output optocouplers. The S1 designation indicates a specific lead frame configuration suitable for surface mount technology. The TU suffix typically denotes tape and reel packaging, while V indicates specific regulatory or mechanical variations defined by Everlight.
Replacement Considerations
Direct replacements must match the SOP-4 surface mount package and 5000 Vrms isolation rating. Verify that substitute components offer comparable CTR ranges and collector-emitter voltage ratings to maintain circuit functionality without redesign.
