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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 EL817S(B)(TA)-V is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with an NPN phototransistor detector in a surface-mount 4-pin package. The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage of 35 V, maximum forward current of 50 mA, and maximum on-state current of 50 mA. The nominal current transfer ratio is specified at 200%, with a maximum dark current of 100 nA. It 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 channels
- Compact surface-mount 4-pin package design for space-constrained applications
- Wide operating temperature range extending up to +110 °C
- Compliant with international safety approvals including UL and VDE
Applications
- Signal isolation in industrial control systems
- Interface circuits for microprocessors and logic devices
- Power supply feedback loops requiring galvanic isolation
Procurement Notes
Verify the specific suffix codes against the manufacturer datasheet to confirm pin configuration and tape-and-reel packaging type. Ensure the component meets required safety certifications such as UL or VDE for the target application environment. Confirm lead-free status and RoHS compliance documentation prior to procurement.
Selection Notes
Select this component when a compact SMD optocoupler with high isolation voltage is required. Verify that the 50 mA forward current limit and 35 V collector-emitter breakdown voltage meet circuit requirements. Consider the 200% nominal CTR for signal transmission efficiency. Ensure the operating temperature range suits the environmental conditions.
Part Context
This part belongs to the EL817 series of photocouplers from Everlight Electronics. The series typically offers various package options including DIP and SMD configurations. The 'S' suffix indicates a surface-mount variant, while '(B)' denotes specific current transfer ratio binning. The '(TA)' suffix refers to the tape-and-reel packaging format.
Replacement Considerations
Direct substitutes may include other EL817 series variants with compatible SMD packages and similar electrical ratings. Verify pinout compatibility and isolation voltage specifications before substitution.
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