{"product_id":"tc4-1t-smd-rf-balun-transformer-50ohm-0-5-300mhz-1-4-flux-coupled-2-5pcs","title":"TC4-1T SMD RF Balun Transformer 50Ω 0.5–300MHz 1:4 | 2\/5 Pcs","description":"\u003ch2\u003eTC4-1T SMD RF Signal Balun Transformer – 50Ω, 0.5–300MHz, 1:4 Impedance Ratio\u003c\/h2\u003e\n\u003cp\u003eUpgrade your RF circuit designs with the \u003cstrong\u003eTC4-1T SMD RF Balun Transformer\u003c\/strong\u003e. Featuring a wide operating frequency range of \u003cstrong\u003e0.5 to 300 MHz\u003c\/strong\u003e and a precise \u003cstrong\u003e1:4 flux-coupled impedance transformation (50Ω)\u003c\/strong\u003e, this surface-mount component delivers excellent balanced-to-unbalanced signal conversion with minimal loss. Available in convenient packs of 2 or 5 pieces.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Frequency Range:\u003c\/strong\u003e 0.5–300 MHz — suitable for a broad range of RF applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1:4 Impedance Ratio:\u003c\/strong\u003e CT flux-coupled design for accurate balanced-to-unbalanced (balun) conversion at 50Ω\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Return Loss:\u003c\/strong\u003e Ensures efficient signal transmission with minimal reflections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact SMD Package:\u003c\/strong\u003e Tiny 5×4×3mm footprint with plastic base and leads for easy PCB integration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReliable Operating Range:\u003c\/strong\u003e Functions between -20°C and +85°C for stable performance across environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Power Design:\u003c\/strong\u003e RF power rating of 0.25W; DC current 30mA — ideal for low-power RF stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNew \u0026amp; High Quality:\u003c\/strong\u003e Precision-manufactured for consistent impedance matching and repeatable results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n  \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eTC4-1T\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eSMD RF Balun Transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e0.5–300 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e50Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eTurns Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e1:4 (CT Flux Coupled)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRF Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e0.25W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDC Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e30mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e-20°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePackage Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e5 × 4 × 3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e2 or 5 Pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAmateur radio (ham radio) transceivers and antenna matching networks\u003c\/li\u003e\n  \u003cli\u003eSDR (Software Defined Radio) front-end circuits\u003c\/li\u003e\n  \u003cli\u003eRF amplifier input\/output balancing stages\u003c\/li\u003e\n  \u003cli\u003ePCB-level signal conditioning and impedance transformation\u003c\/li\u003e\n  \u003cli\u003eCommunications equipment and RF test setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003e1PC 10g High Grade Silicone Grease Lubricant for O-Rings\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-large-capacity-battery-storage-organizer-box-batteries-not-included-vintage-beer-crate-appearance-holds-30-aaa-batteries\"\u003e1PC Large Capacity Battery Storage Organizer Box\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-mobile-data-cable-storage-box-portable-winding-earphone-charger-storage-box-with-lid-drawer-organizer-box\"\u003e1PC Mobile Data Cable Storage Box \u0026amp; Organizer\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow 2–3% dimensional variance due to manual measurement. Actual product color may differ slightly from images due to monitor display differences.\u003c\/em\u003e\u003c\/p\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 does the TC4-1T SMD RF Balun Transformer do?\u003c\/h4\u003e\n\u003cp\u003eA: The TC4-1T is a surface-mount RF balun transformer that converts between balanced and unbalanced signals. With a 1:4 flux-coupled CT design at 50Ω impedance, it efficiently transforms signal impedance across a wide 0.5–300 MHz frequency range, making it ideal for antenna matching, amplifier stages, and SDR circuits.\u003c\/p\u003e\n\u003ch4\u003eQ: What frequency range does this RF balun transformer support?\u003c\/h4\u003e\n\u003cp\u003eA: This TC4-1T balun transformer supports a wide operating frequency range of 0.5 MHz to 300 MHz, covering HF through VHF bands — suitable for ham radio, amateur radio, and many general RF design applications.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this balun transformer easy to solder onto a PCB?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The TC4-1T features a compact SMD (surface-mount device) package measuring only 5×4×3mm with a plastic base and leads, making it straightforward to integrate into standard PCB layouts using typical SMD soldering techniques.\u003c\/p\u003e\n\u003ch4\u003eQ: How many pieces are included in the package?\u003c\/h4\u003e\n\u003cp\u003eA: This listing is available in packs of 2 or 5 pieces. Please select your preferred quantity when adding to cart.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the TC4-1T SMD RF Balun Transformer do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The TC4-1T is a surface-mount RF balun transformer that converts between balanced and unbalanced signals. With a 1:4 flux-coupled CT design at 50Ω impedance, it efficiently transforms signal impedance across a wide 0.5–300 MHz frequency range, making it ideal for antenna matching, amplifier stages, and SDR circuits.\"}}, {\"@type\": \"Question\", \"name\": \"What frequency range does this RF balun transformer support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This TC4-1T balun transformer supports a wide operating frequency range of 0.5 MHz to 300 MHz, covering HF through VHF bands — suitable for ham radio, amateur radio, and many general RF design applications.\"}}, {\"@type\": \"Question\", \"name\": \"Is this balun transformer easy to solder onto a PCB?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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