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EL817(S)(D)(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)：300% @ 5mA
- Current Transfer Ratio (Max)：600% @ 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(S)(D)(TU)-V is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with a phototransistor detector in a surface-mount 4-pin package. The device provides high isolation voltage of 5000 Vrms between input and output, with a minimum collector-emitter breakdown voltage of 35 V. It features a nominal current transfer ratio of 300% and supports a maximum forward current of 60 mA. The component operates within a temperature range of -55 °C to +110 °C and complies with RoHS standards.
Feature Summary
- High isolation voltage capability of 5000 Vrms between input and output circuits
- Compact surface-mount design suitable for automated assembly processes
- Compliant with international safety approvals including UL, VDE, and CSA
Applications
- Signal isolation in industrial control systems
- Power supply feedback loops
- Microcontroller interface circuits
Procurement Notes
Verify the specific suffix TU-V against the manufacturer datasheet to confirm tape-and-reel packaging and compliance status. Ensure the procurement source provides valid certification documents for UL and VDE approvals. Cross-reference the part number with official Everlight databases to avoid counterfeit components. Confirm that the delivered units match the specified 4-pin SMD package dimensions.
Selection Notes
Select this component when high isolation voltage and compact surface-mount form factor are required. The 300% CTR rating suits applications needing moderate signal gain. Verify thermal management requirements for operation up to 110 °C. Compare with other EL817 variants if different CTR ranges or through-hole packages are needed. Ensure input current limits align with the driving circuit capabilities.
Part Context
This part belongs to the EL817 series of transistor output optocouplers from Everlight. The series typically includes various pin configurations and current transfer ratio grades. The (S) indicates surface mount, (D) denotes a specific CTR grade, and (TU)-V specifies tape-and-reel packaging with RoHS compliance. Other variants include DIP packages and different CTR ratings like B, C, or E grades.
Replacement Considerations
Direct substitutes may include other EL817(S)(D)(TU)-V units from Everlight or equivalent transistor output optocouplers with matching 5000 Vrms isolation and 4-pin SMD packages. Verify pinout compatibility and electrical parameters such as CTR and breakdown voltage before substitution.
