{"product_id":"ct354a-sop-4-transistor-output-optocoupler-20-50pcs","title":"CT354A SOP-4 Transistor Output Optocoupler – 20–50 pcs Bulk","description":"\u003ch2\u003eCT354A(V)(T1) SOP-4 Transistor Output Optocoupler – Reliable Signal Isolation for Your Circuits\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCT354A(V)(T1)\u003c\/strong\u003e is a high-quality \u003cstrong\u003eSOP-4 transistor output optocoupler\u003c\/strong\u003e designed for general-purpose signal isolation in a wide range of electronic applications. Available in convenient bulk packs of \u003cstrong\u003e20 to 50 pieces\u003c\/strong\u003e, this component is ideal for engineers, hobbyists, and electronics professionals who need dependable optical isolation at an exceptional value.\u003c\/p\u003e\n\n\u003cp\u003eWith a compact \u003cstrong\u003eSOP-4 surface-mount package\u003c\/strong\u003e, the CT354A integrates seamlessly into PCB designs, offering efficient electrical isolation between input and output circuits. Operating at \u003cstrong\u003e1.24V\u003c\/strong\u003e, it meets international standards for contact load, protection features, and general performance — making it a versatile choice for control circuits, logic interfacing, and signal switching.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e CT354A(V)(T1)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOP-4 (Surface-Mount, 4-pin)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Transistor Output Optocoupler\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 1.24V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e General Purpose Signal Isolation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Meets international standards for contact load and protection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concern Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Available in 20–50 piece packs\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eCustomized options available\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose the CT354A(V)(T1)?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eReliable Isolation:\u003c\/strong\u003e Effectively separates input\/output circuits to prevent interference and protect sensitive components.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eCompact SOP-4 Form Factor:\u003c\/strong\u003e Easy to integrate into tight PCB layouts with surface-mount technology.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eBulk Pack Value:\u003c\/strong\u003e Get 20–50 pieces per order — perfect for prototyping, production runs, or stocking your component drawer.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eInternational Standard Compliance:\u003c\/strong\u003e Designed to meet widely recognized international component standards.\u003c\/li\u003e\n  \u003cli\u003e✅ \u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Safe for use in a wide variety of environments and applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMicrocontroller and logic-level signal interfacing\u003c\/li\u003e\n  \u003cli\u003eIndustrial control systems\u003c\/li\u003e\n  \u003cli\u003eSwitching power supplies\u003c\/li\u003e\n  \u003cli\u003eMotor drive circuits\u003c\/li\u003e\n  \u003cli\u003eCommunication and data isolation\u003c\/li\u003e\n  \u003cli\u003eSensor signal conditioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cp\u003eLooking for more tools and electronics for your projects? Check out these popular items:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the CT354A(V)(T1) SOP-4 optocoupler used for?\u003c\/h4\u003e\n\u003cp\u003eA: The CT354A(V)(T1) is a general-purpose transistor output optocoupler used to provide electrical isolation between two circuits. Common applications include microcontroller signal interfacing, industrial control systems, switching power supplies, and motor drive circuits. Its SOP-4 surface-mount package makes it ideal for compact PCB designs.\u003c\/p\u003e\n\u003ch4\u003eQ: What package type is the CT354A(V)(T1), and is it surface-mount compatible?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, the CT354A(V)(T1) comes in a \u003cstrong\u003eSOP-4 (Small Outline Package, 4-pin)\u003c\/strong\u003e format, which is fully compatible with standard surface-mount technology (SMT) assembly processes, making it easy to solder onto modern PCBs.\u003c\/p\u003e\n\u003ch4\u003eQ: How many pieces are included per order?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes between \u003cstrong\u003e20 and 50 pieces\u003c\/strong\u003e of the CT354A(V)(T1) optocoupler, providing excellent value for prototyping, small production runs, or component inventory restocking.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this optocoupler contain any high-concern chemicals?\u003c\/h4\u003e\n\u003cp\u003eA: No. The CT354A(V)(T1) contains \u003cstrong\u003eno high-concern chemicals\u003c\/strong\u003e, making it suitable for a broad range of applications and environments.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the CT354A(V)(T1) SOP-4 optocoupler used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The CT354A(V)(T1) is a general-purpose transistor output optocoupler used to provide electrical isolation between two circuits. 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