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EL817(S)(D)(TU)
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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) 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. The device provides high isolation voltage of 5000 Vrms between input and output circuits. It is designed for surface mount installation in a compact small outline package. The unit weight is 260 mg. The component supports a wide operating temperature range from -55°C to +110°C. It is RoHS compliant and lead-free.
Feature Summary
- Provides electrical isolation via optical coupling between input LED and output phototransistor
- High insulation voltage capability for safe signal transmission across potential barriers
- Compact surface mount packaging suitable for space-constrained designs
- Compliant with environmental standards including RoHS and lead-free requirements
Applications
- Industrial control systems requiring signal isolation
- Power supply feedback loop isolation
- Communication equipment interface protection
Procurement Notes
Verify current availability status as the product lifecycle may indicate end-of-life or limited supply conditions. Confirm specific suffix variations match design requirements. Check for alternative sourcing channels if direct manufacturer distribution is restricted. Ensure compliance with regional import regulations regarding electronic components.
Selection Notes
Select this component when high isolation voltage and compact SMD form factor are required. Consider the NPN phototransistor output type for compatible logic interfaces. Verify thermal management needs within the specified operating temperature range. Evaluate mechanical fit against PCB layout constraints for the small outline package.
Part Context
This part belongs to the EL817 series of transistor output optocouplers. The series includes various pin configurations and packaging options such as DIP and SMD variants. The (S) suffix typically denotes surface mount construction. The (D) and (TU) suffixes relate to specific tape and reel packaging or regulatory approvals.
Replacement Considerations
Check for EL817(S)(C)(TU) or EL817(S)(B)(TU) equivalents if different CTR ranges are acceptable. Verify pinout compatibility before substitution. Ensure replacement parts maintain the same isolation voltage rating and package dimensions.
