{"product_id":"dc-power-supply-female-barrel-jack-socket-5-5mm-x-2-1mm-panel-mount","title":"DC Power Supply Female Barrel Jack Socket (5.5mm x 2.1mm - Panel Mount)","description":"\u003cp data-path-to-node=\"4\"\u003eWhen you are designing an electronics enclosure and need a clean, professional way to bring in DC power from a standard wall adapter, this 5.5mm x 2.1mm female barrel jack socket is the industry standard solution. Designed to perfectly mate with the most common AC-to-DC power supplies (like standard 5-Volt, 9-Volt, and 12-Volt adapters), it provides a secure, snug fit that prevents accidental power disconnects and intermittent power drops.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\" id=\"p-rc_8d05ee2d71264514-182\"\u003e\u003cspan class=\"citation-257 citation-end-257\"\u003eThis specific variant features a threaded barrel and an included hex nut, making it incredibly easy to securely mount into a drilled hole on any plastic, wood, or metal project panel.\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e It features three internal solder terminals—one for the center positive pin, one for the outer negative sleeve, and a third switched terminal that can be used to automatically disconnect an internal battery when an external wall adapter is plugged in. Whether you are building a custom audio amplifier, an IoT sensor hub, or a robotics controller base, this socket gives your project a finished, commercial-grade power input. \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eKey Features \u0026amp; Functional Advantages\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eUniversal Standard Size:\u003c\/b\u003e Features the highly ubiquitous 5.5mm outer diameter and 2.1mm center pin, ensuring compatibility with the vast majority of hobbyist and commercial power adapters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\" id=\"p-rc_8d05ee2d71264514-183\"\u003e\u003cspan class=\"citation-256\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-256\"\u003ePanel Mount Design:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-256 citation-end-256\"\u003e Equipped with a threaded outer housing and a securing nut, allowing for robust, permanent installation into project boxes and custom faceplates.\u003csup class=\"superscript\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eInternal Switching Contact:\u003c\/b\u003e Includes a third solder lug that physically breaks contact when a plug is inserted, allowing you to easily design circuits that seamlessly switch from internal battery power to external wall power.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003cb data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"\u003eRobust Construction:\u003c\/b\u003e Built with durable plastic and thick metal solder lugs that can easily withstand the heat of hand-soldering and the mechanical stress of repeated plugging and unplugging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,4,0\"\u003e\u003cb data-path-to-node=\"7,4,0\" data-index-in-node=\"0\"\u003eClean Aesthetics:\u003c\/b\u003e Provides a flush, professional-looking power entry point that elevates the appearance of any DIY electronics project.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003ePerfect For\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eCustom Enclosures:\u003c\/b\u003e The absolute best way to add a dedicated power input port to 3D-printed cases, extruded aluminum project boxes, and acrylic panels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003eBattery-Powered Devices:\u003c\/b\u003e Utilizing the built-in switch to automatically disable an internal 9-Volt or double-A battery pack when a wall adapter is connected, saving battery life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eAudio and Lighting Projects:\u003c\/b\u003e Providing the necessary physical connection to power custom guitar pedals, LED strip controllers, and small desktop amplifiers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\"\u003e\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eArduino and Microcontroller Hubs:\u003c\/b\u003e Creating a robust power entry point for custom logic boards that require a dedicated external supply.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eTechnical Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"0\"\u003eConnector Type:\u003c\/b\u003e DC Female Barrel Jack Socket\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e\u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"0\"\u003eInner Pin Diameter:\u003c\/b\u003e 2.1 millimeters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\" id=\"p-rc_8d05ee2d71264514-184\"\u003e\u003cspan class=\"citation-255\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"11,2,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-255\"\u003eOuter Hole Diameter:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-255 citation-end-255\"\u003e 5.5 millimeters\u003csup class=\"superscript\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,0\"\u003e\u003cb data-path-to-node=\"11,3,0\" data-index-in-node=\"0\"\u003eMounting Style:\u003c\/b\u003e Threaded Panel Mount (with securing hex nut)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,4,0\"\u003e\u003cb data-path-to-node=\"11,4,0\" data-index-in-node=\"0\"\u003eMaximum Current Rating:\u003c\/b\u003e Typically rated up to 3 Amps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,5,0\"\u003e\u003cb data-path-to-node=\"11,5,0\" data-index-in-node=\"0\"\u003eMaximum Voltage Rating:\u003c\/b\u003e Up to 30 Volts DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,6,0\"\u003e\u003cb data-path-to-node=\"11,6,0\" data-index-in-node=\"0\"\u003eNumber of Terminals:\u003c\/b\u003e 3 (Center Pin, Outer Sleeve, and Switched Contact)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-TECHNICS","offers":[{"title":"Default Title","offer_id":42871303209031,"sku":null,"price":20.0,"currency_code":"KES","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/00119-03-L.webp?v=1781237527","url":"https:\/\/www.ktechnics.com\/products\/dc-power-supply-female-barrel-jack-socket-5-5mm-x-2-1mm-panel-mount","provider":"K-TECHNICS","version":"1.0","type":"link"}