{"product_id":"motorola-mt20-21120-a04f-503913-007-12v-0-75a-9w-ac-power-adapter-5-5-2-5mm-charger-for-cable-modem-digital-receiver-and-networking-devices","title":"Motorola MT20-21120-A04F 503913-007 12V 0.75A 9W AC Power Adapter 5.5×2.5mm Charger for Cable Modem, Digital Receiver and Networking Devices","description":"\u003cp\u003eWhen a cable modem or digital receiver stops powering on because of a missing or damaged adapter, finding the correct replacement power supply is critical. The Motorola MT20-21120-A04F AC Power Adapter provides regulated 12V DC output for compatible Motorola communication and entertainment devices, helping restore reliable daily operation.\u003c\/p\u003e\n\u003cp\u003eDesigned around the Motorola 503913-007 power specification, this adapter delivers 12V DC at 0.75A through a 5.5mm × 2.5mm DC barrel connector. It is suitable for replacing worn-out adapters used with compatible cable modems, digital receivers, and networking equipment where the voltage, current, polarity, and connector requirements match.\u003c\/p\u003e\n\u003ch6\u003eApplication Scenarios\u003c\/h6\u003e\n\u003cp\u003eThis adapter is designed for communication and consumer networking equipment that requires a low-power 12V DC external power source. Typical applications include cable modems, digital television adapters, broadband communication devices, and compatible Motorola networking equipment.\u003c\/p\u003e\n\u003ch6\u003eTechnical Specifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; line-height: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMotorola\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMT20-21120-A04F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eP\/N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e503913-007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC Power Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100-240V AC, 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.75A (750mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.5mm × 2.5mm DC Barrel Plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePolarity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCenter Positive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOver-voltage, Over-current, Short-circuit and Overload Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003e \u003c\/h6\u003e\n\u003ch6\u003eOEM Replacement Compatibility\u003c\/h6\u003e\n\u003cp\u003eThis adapter can replace the following power supply models:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMotorola MT20-21120-A04F\u003c\/li\u003e\n\u003cli\u003eMotorola P\/N 503913-007\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eCompatible Devices\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eMotorola DCT700 Digital Receiver\u003c\/li\u003e\n\u003cli\u003eMotorola DTA100 Digital Adapter\u003c\/li\u003e\n\u003cli\u003eCompatible Motorola Cable Modem Devices\u003c\/li\u003e\n\u003cli\u003eCompatible Motorola Digital Receiver Equipment\u003c\/li\u003e\n\u003cli\u003eOther 12V 0.75A devices using a 5.5mm × 2.5mm DC barrel connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eReplacement \u0026amp; Maintenance\u003c\/h6\u003e\n\u003cp\u003eA failing power adapter may cause symptoms such as device shutdowns, intermittent operation, power indicator failure, or unstable connectivity. Replacing the adapter with the correct voltage, current rating, polarity, and connector size can help restore normal equipment operation without replacing the entire device.\u003c\/p\u003e\n\u003ch6\u003eFAQ\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eCan this replace Motorola MT20-21120-A04F P\/N 503913-007?\u003c\/strong\u003e\u003cbr\u003eYes. This adapter is designed as a compatible replacement for Motorola MT20-21120-A04F and P\/N 503913-007 when the device requires 12V 0.75A power input with a matching 5.5mm × 2.5mm connector.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the output specification of this adapter?\u003c\/strong\u003e\u003cbr\u003eThe adapter provides 12V DC output at 0.75A (750mA), with a maximum power output of approximately 9W.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I verify compatibility before ordering?\u003c\/strong\u003e\u003cbr\u003eCheck your original adapter label and confirm the output voltage, current, polarity, and connector dimensions match before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat devices commonly use this adapter?\u003c\/strong\u003e\u003cbr\u003eThis adapter is commonly associated with compatible Motorola cable modems, digital receivers, and communication equipment requiring a 12V low-power external adapter.\u003c\/p\u003e\n\u003ch6\u003e \u003c\/h6\u003e\n\u003ch6\u003eThe Motorola MT20-21120-A04F P\/N 503913-007 is a 12V 0.75A AC power adapter designed for compatible Motorola cable modems, digital receivers, and communication equipment. Featuring a 5.5mm × 2.5mm DC barrel connector, it provides stable external power for replacing damaged or missing adapters used in home networking and digital entertainment systems.\u003c\/h6\u003e","brand":"Motorola","offers":[{"title":"Default Title","offer_id":50961684431095,"sku":"LM-DPEWSM2KLMXXS3Q3","price":16.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/6512\/3831\/files\/motorola-mt20-21120-a04f-503913-007-12v-075a-adapter.jpg?v=1784879483","url":"https:\/\/oempowerus.com\/products\/motorola-mt20-21120-a04f-503913-007-12v-0-75a-9w-ac-power-adapter-5-5-2-5mm-charger-for-cable-modem-digital-receiver-and-networking-devices","provider":"OEM Power US","version":"1.0","type":"link"}