EL357N Narrow CTR Optocoupler
EL357N features tightly controlled CTR (50-200%) for precision feedback applications, optically coupled GaAs LED to phototransistor. HTS 8541.49.80.00 classification for optical isolation in SMPS and motor control requiring accurate current proportioning. SOP-5 package enables high-density mounting.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If without specified CTR tolerance
General photosensitive devices without precision CTR specs may fall under broader category
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Import Tips & Compliance
• Narrow CTR binning specifications critical for justifying precision device classification
• Linearity specs over input current range distinguish from general purpose optocouplers
• SOP-5W package reflow soldering specs important for electronics manufacturing declarations
Related Products under HTS 8541.49.80.00
TLP521 Optocoupler
The TLP521 is a photosensitive semiconductor optocoupler consisting of a gallium arsenide infrared LED optically coupled to a phototransistor, providing electrical isolation up to 2.5kV. It falls under HTS 8541.49.80.00 as an optical coupled isolator used in power supplies and motor drives to transmit signals while preventing high voltage feedback. This device ensures reliable galvanic isolation in industrial control circuits.
PC817 Photocoupler
The PC817 series optical isolator features an infrared LED optically coupled to a phototransistor in a 4-pin DIP package, offering 5kV isolation voltage. Classified under HTS 8541.49.80.00 for its role as an optical coupled isolator in telecommunication equipment and AC input detection circuits. Provides high reliability signal transmission between high and low voltage circuits.
TLP181GB High-Speed Optocoupler
TLP181GB is a high-speed optical coupled isolator with infrared LED and phototransistor, featuring 3.75kV isolation for 10Mbps data transmission. Falls under HTS 8541.49.80.00 as it provides optical signal coupling for isolated I/O interfaces in digital circuits. Used in PLCs and servo amplifiers requiring fast switching isolation.
SFH618A-2 Phototransistor Optocoupler
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H11A1 AC Input Optocoupler
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4N25 General Purpose Optocoupler
4N25 is a versatile optical isolator with GaAs infrared LED coupled to phototransistor in 6-pin DIP, offering 2.5kV isolation. Falls under HTS 8541.49.80.00 for general purpose interface isolation in computers, printers, and instrumentation. Base-emitter pin enables high-speed switching applications.