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EL817(S1)(C)(TD)
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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)：200% @ 5mA
- Current Transfer Ratio (Max)：400% @ 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)(C)(TD) is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode coupled to an NPN phototransistor within a surface-mount SOP-4 package. The device provides high isolation voltage of 5000 Vrms and operates over a temperature range of -55°C to +110°C. Key electrical parameters include a maximum collector-emitter voltage of 35V, a forward current of 60mA, and a current transfer ratio ranging from 200% to 600%. The component is RoHS compliant and UL approved.
Feature Summary
- Provides galvanic isolation between input and output circuits via optical transmission
- Features a compact surface-mount SOP-4 package for automated assembly
- Ensures signal integrity with high isolation voltage rating
- Compliant with environmental standards including RoHS and lead-free requirements
Applications
- Industrial control systems for signal isolation in PLCs and motor drives
- Power supply feedback loops in switching regulators and UPS units
- Communication equipment requiring circuit isolation
- Microcontroller interface circuits for level shifting and noise immunity
Procurement Notes
Verify the specific suffix configuration against the manufacturer's datasheet to ensure compatibility with required packaging and compliance certifications. Confirm availability status as distribution channels may vary. Ensure the selected variant matches the intended mounting type and thermal specifications for the target application environment.
Selection Notes
Select this component when surface-mount technology is required for space-constrained designs. Consider the CTR range and isolation voltage requirements relative to the system's safety standards. Evaluate the thermal performance within the specified operating temperature range. Compare pinout compatibility with existing PCB layouts before integration.
Part Context
This part belongs to the EL817 series of transistor output optocouplers. The series is widely used for general-purpose isolation applications. The S1 designation typically indicates specific creepage and clearance distances. The TD suffix denotes the tape and reel packaging format suitable for high-volume surface-mount production lines.
Replacement Considerations
Compatible substitutes include other SOP-4 transistor output optocouplers with similar isolation ratings and pin configurations. Verify that alternative parts meet the same CTR ranges and voltage specifications. Ensure mechanical footprint compatibility with the existing PCB design.
