{"product_id":"lei-nu20-5120125-13-12v-1-25a-15w-ac-power-adapter-p-n-nu20-51120-3y0f-for-sb5100-sb6120-sbv5122","title":"LEI NU20-5120125-13 12V 1.25A 15W AC Power Adapter, P\/N NU20-51120-3Y0F for SB5100 SB6120 SBV5122","description":"\u003ch6\u003eWhen a Cable Modem or Network Device Needs the Correct Replacement Adapter\u003c\/h6\u003e\n\u003cp\u003eA missing or failing power adapter can take a modem, gateway, or other connected device offline even when the equipment itself is still working normally. The \u003cstrong\u003eLEI NU20-5120125-13\u003c\/strong\u003e is a compact 15W AC\/DC power adapter providing \u003cstrong\u003e12V DC at 1.25A\u003c\/strong\u003e, with \u003cstrong\u003eP\/N NU20-51120-3Y0F\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis model is particularly relevant to network equipment installations where the replacement needs to match the original 12V power specification. Public equipment documentation associates this exact model\/P\/N combination with cable modem platforms including \u003cstrong\u003eSB5100, SB6120 and SBV5122\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch6\u003eTechnical Specifications\u003c\/h6\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003eLEI \/ Leader Electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003eNU20-5120125-13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eP\/N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003eNU20-51120-3Y0F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003eAC\/DC Power Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eInput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003e100-240V AC, 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003e1.25A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003e15W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eConnector Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003eDC Barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003eConnector Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003e5.5 × 2.5 mm reported for this model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15px;\"\u003e\n\u003ctd style=\"height: 15px;\"\u003e\u003cstrong\u003ePrimary Application\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 15px;\"\u003eCable Modems and Network Equipment\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\u003eThe following model and P\/N are directly associated with this power adapter:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLEI NU20-5120125-13\u003c\/li\u003e\n\u003cli\u003eP\/N NU20-51120-3Y0F\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor replacement identification, the \u003cstrong\u003emodel number and P\/N should be compared with the existing adapter label\u003c\/strong\u003e. This is especially important because other LEI NU20 models can have different output specifications or connector configurations.\u003c\/p\u003e\n\u003ch6\u003eCompatible Devices\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eSB5100 Cable Modem\u003c\/li\u003e\n\u003cli\u003eSB6120 Cable Modem\u003c\/li\u003e\n\u003cli\u003eSBV5122 Cable Modem \/ Voice Modem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese device associations are documented in a power-supply reference that identifies NU20-5120125-I3 with P\/N NU20-51120-3Y0F for SB5100, SB6120 and SBV5122 applications.\u003c\/p\u003e\n\u003ch6\u003eReplacement \u0026amp; Maintenance Logic\u003c\/h6\u003e\n\u003cp\u003eA 12V network device that suddenly powers off, repeatedly restarts, or remains completely inactive may have a failed external power adapter rather than a defective modem or gateway. Replacing the adapter is a practical first step when the original unit has suffered cable damage, electrical failure, or simply become unavailable.\u003c\/p\u003e\n\u003cp\u003eThe important replacement criteria are the \u003cstrong\u003e12V output voltage, 1.25A current rating, correct connector configuration, and matching P\/N\u003c\/strong\u003e. The current rating should not be treated as a standalone compatibility test. The connected equipment must be designed for the specified 12V input and the physical connector must match the device's power socket.\u003c\/p\u003e\n\u003ch6\u003eFrequently Asked Questions\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the output of the LEI NU20-5120125-13?\u003c\/strong\u003e\u003cbr\u003eIt provides \u003cstrong\u003e12V DC at 1.25A\u003c\/strong\u003e, equivalent to a 15W rated output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the P\/N for NU20-5120125-13?\u003c\/strong\u003e\u003cbr\u003eThe P\/N associated with this version is \u003cstrong\u003eNU20-51120-3Y0F\u003c\/strong\u003e. The model and P\/N should be compared with the original adapter label before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat devices are associated with P\/N NU20-51120-3Y0F?\u003c\/strong\u003e\u003cbr\u003eA published equipment reference associates this P\/N with the LEI NU20-5120125-I3 configuration used for \u003cstrong\u003eSB5100, SB6120 and SBV5122\u003c\/strong\u003e cable modem platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a 15W adapter?\u003c\/strong\u003e\u003cbr\u003eYes. At 12V and 1.25A, the rated output is 15W.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan any 12V 1.25A adapter replace this model?\u003c\/strong\u003e\u003cbr\u003eNot necessarily. The replacement must also have a compatible connector, polarity, electrical characteristics, and appropriate physical fit. Matching the voltage and current alone is not sufficient.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are common signs of a failing adapter?\u003c\/strong\u003e\u003cbr\u003eUnexpected modem shutdowns, repeated restarts, intermittent operation, or failure to power on can indicate a problem with the external power supply. The adapter, cable, wall outlet, and device power input should all be checked.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch6\u003eLEI NU20-5120125-13 is a 15W AC\/DC power adapter rated at 12V DC and 1.25A, with P\/N NU20-51120-3Y0F. It is associated with cable modem equipment including SB5100, SB6120 and SBV5122, making it a replacement power source for compatible network devices that require the same 12V electrical specification and connector configuration.\u003c\/h6\u003e","brand":"LEI","offers":[{"title":"Default Title","offer_id":51019952718071,"sku":"LM-1M0NGDGA0QOG16QL","price":12.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/6512\/3831\/files\/LEI-NU20-5120125-13-Specs-Label.jpg?v=1786780356","url":"https:\/\/oempowerus.com\/products\/lei-nu20-5120125-13-12v-1-25a-15w-ac-power-adapter-p-n-nu20-51120-3y0f-for-sb5100-sb6120-sbv5122","provider":"OEM Power US","version":"1.0","type":"link"}