{"product_id":"600-600-ohm-1-1-audio-isolation-transformer-nickel-alloy-permalloy","title":"600:600 Ohm 1:1 Audio Isolation Transformer Nickel Alloy 2\/5Pcs","description":"\n\u003ch2\u003e600:600 Ohm 1:1 Audio Isolation Transformer — Nickel Alloy Permalloy Core\u003c\/h2\u003e\n\u003cp\u003eUpgrade your audio and signal chain with these high-efficiency \u003cstrong\u003e600:600 Ohm 1:1 Audio Isolation Transformers\u003c\/strong\u003e. Built from premium nickel alloy (permalloy) and engineered for stable intermediate-frequency performance, these compact transformers are ideal for audio interfaces, balanced line circuits, voltage amplification stages, and power output applications. Available in convenient 2-pack or 5-pack quantities.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e600 Ohm Impedance Matching:\u003c\/strong\u003e A balanced 600:600 Ω AC impedance ratio makes these transformers ideal for a wide range of audio and signal-level applications, from voltage amplification to balanced line output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1:1 Voltage Ratio:\u003c\/strong\u003e Maintains signal integrity with a perfect 1:1 winding ratio — 800 primary turns and 800 secondary turns for symmetrical, low-distortion signal transfer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNickel Alloy \/ Permalloy Core:\u003c\/strong\u003e Crafted from high-permeability nickel alloy, minimizing hysteresis loss and ensuring long-lasting, stable performance across your audio circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Pin Configurations:\u003c\/strong\u003e Available in 4-pin and 5-pin formats to suit various PCB layouts and audio transformer applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEMI \u0026amp; EMC Compliant:\u003c\/strong\u003e Designed to meet EMI and EMC standards, making them fully compatible with modern electronic systems and sensitive audio equipment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Vertical Form Factor:\u003c\/strong\u003e Compact 10 × 8 mm vertical construction fits easily into tight PCB spaces without sacrificing performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOil-Immersed Air-Cooled Design:\u003c\/strong\u003e Intermediate-frequency design with oil-immersed air-cooled operation for consistent thermal stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 : 600 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1:1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInductance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e290 mH (±20%)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDC Resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e135 Ω (±%)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Coils\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e800 turns\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSecondary Coils\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e800 turns\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWinding Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble-wire winding\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntermediate frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOil-immersed air-cooled\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMoisture Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOpen\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAppearance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVertical\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 × 8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Pcs or 5 Pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 or 5 × Audio Isolation Transformer (600:600 Ω, 1:1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003ePlease allow 2–3% dimensional variance due to manual measurement. Actual color may differ slightly from on-screen images due to display calibration differences.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-2-pin-quick-splice-spring-wire-connectors-lock-terminals\"\u003e10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/12pcs-16mm-momentary-push-button-switch-1no-metal-2-pin-self-reset\"\u003e12pcs 16mm Momentary Push Button Switch 1NO Metal 2-Pin Self-Reset\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge\"\u003e10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/recycle\/used-lithium-ion-batteries\" target=\"_blank\" rel=\"noopener\"\u003eEPA guidance on lithium-ion battery handling\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is a 600:600 Ohm 1:1 audio isolation transformer used for?\u003c\/h4\u003e\n\u003cp\u003eA: A 600:600 Ohm 1:1 audio isolation transformer is used to match impedance between balanced audio lines, eliminate ground loop hum, and isolate digital signal paths in audio equipment. The 1:1 ratio ensures the signal level is transferred without amplification or attenuation, making it perfect for line-level audio circuits, intercom systems, and balanced signal interfaces.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between the 4-pin and 5-pin configurations?\u003c\/h4\u003e\n\u003cp\u003eA: The 4-pin configuration features a straightforward primary-to-secondary winding layout, while the 5-pin version typically includes a center-tap on one winding — useful for specific circuit designs requiring a center-tapped secondary or primary. Choose the configuration that matches your PCB layout and circuit requirements.\u003c\/p\u003e\n\u003ch4\u003eQ: Why is nickel alloy (permalloy) used as the core material?\u003c\/h4\u003e\n\u003cp\u003eA: Nickel alloy (permalloy) has exceptionally high magnetic permeability, which allows the transformer core to efficiently conduct magnetic flux at low signal levels. This minimizes hysteresis loss and core saturation, resulting in cleaner signal transfer, lower distortion, and a longer operational lifespan compared to standard iron-core transformers.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these transformers compatible with modern PCB designs?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. These audio isolation transformers are designed to meet EMI and EMC compliance standards, making them compatible with contemporary electronic systems. Their compact 10 × 8 mm vertical footprint ensures they fit neatly into most PCB layouts without requiring extensive board real estate.\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 is a 600:600 Ohm 1:1 audio isolation transformer used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A 600:600 Ohm 1:1 audio isolation transformer is used to match impedance between balanced audio lines, eliminate ground loop hum, and isolate digital signal paths in audio equipment. 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