{"product_id":"mitsubishi-j4b-c81-ns","title":"Mitsubishi J4B-C81-NS Servo Drive Control PCB","description":"\u003cstyle\u003e\n.j4bc81 p{margin:0 0 14px}\n.j4bc81 h3,.j4bc81 h4{margin:30px 0 14px}\n.j4bc81 table{width:100%;border-collapse:collapse;margin:0 0 18px}\n.j4bc81 td{padding:11px;border:1px solid #ddd;vertical-align:top}\n.j4bc81 td:first-child{width:34%}\n.j4bc81 tr:nth-child(odd){background:#f7f7f7}\n\u003c\/style\u003e\n\u003cdiv class=\"j4bc81\"\u003e\n\u003cp\u003e\u003cstrong\u003eMitsubishi J4B-C81-NS\u003c\/strong\u003e is a servo drive control PCB assembly offered for replacement matching. The photographed unit combines a main circuit board, edge-mounted connectors and an upright digital-display daughterboard.\u003c\/p\u003e\n\u003cp\u003eThe component side carries \u003cstrong\u003eBC386A931G51\u003c\/strong\u003e identification and a \u003cstrong\u003eMADE IN JAPAN\u003c\/strong\u003e marking. Keep the complete \u003cstrong\u003eJ4B-C81-NS\u003c\/strong\u003e reference when requesting a replacement.\u003c\/p\u003e\n\u003ch3\u003eJ4B-C81-NS Product Information\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMitsubishi Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel \/ MPN\u003c\/td\u003e\n\u003ctd\u003eJ4B-C81-NS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent-Side Board Number\u003c\/td\u003e\n\u003ctd\u003eBC386A931G51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse-Side PCB Marking\u003c\/td\u003e\n\u003ctd\u003eBC386A931H01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eServo drive control PCB assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotographed Configuration\u003c\/td\u003e\n\u003ctd\u003eMain PCB, connector row and fitted digital-display daughterboard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisible Connector Labels\u003c\/td\u003e\n\u003ctd\u003eCN1A, CN1B, CN2, CN2L, CN3, CN4, CN8 and CON1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew, refurbished or used; subject to availability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTesting\u003c\/td\u003e\n\u003ctd\u003ePre-shipment test video; test scope confirmed for the quoted assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHandling\u003c\/td\u003e\n\u003ctd\u003eNormally 1–2 business days after payment for confirmed stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping \/ ETA\u003c\/td\u003e\n\u003ctd\u003eDHL, UPS or FedEx worldwide; timing depends on destination and customs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year for new\/refurbished; 3 months for used\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService \/ Packing\u003c\/td\u003e\n\u003ctd\u003eFree technical support; anti-static protection, cushioning and reinforced packing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch4\u003eModel and Board Identification\u003c\/h4\u003e\n\u003cp\u003eCompare the full model, including \u003cstrong\u003eC81\u003c\/strong\u003e and \u003cstrong\u003eNS\u003c\/strong\u003e, with the original board. Check \u003cstrong\u003eBC386A931G51\u003c\/strong\u003e, revision labels and fitted components together. The reverse-side \u003cstrong\u003eBC386A931H01\u003c\/strong\u003e marking provides a separate PCB reference. A shared base number alone does not establish interchangeability.\u003c\/p\u003e\n\u003ch4\u003eConnector Layout and Display Assembly\u003c\/h4\u003e\n\u003cp\u003eThe photos show two metal-shielded rectangular connectors, black connector housings, a D-sub connector and the long \u003cstrong\u003eCON1\u003c\/strong\u003e board-to-board connector. A Mitsubishi \u003cstrong\u003eMGA031\u003c\/strong\u003e device is visible in the main logic area. The upright daughterboard carries a digital display. These details help compare the supplied assembly with the original unit.\u003c\/p\u003e\n\u003cp\u003eMatch connector positions, keying, mounting holes, daughterboard orientation and installation clearance. Confirm that the quoted assembly includes the display daughterboard and any required fittings shown in the photos.\u003c\/p\u003e\n\u003ch4\u003eReplacement Matching and Quotation\u003c\/h4\u003e\n\u003cp\u003eSend clear photos of both sides of the original PCB, its complete model markings and the servo amplifier nameplate. Confirm the amplifier specification, board revision and any firmware or configuration requirements before ordering. Exact amplifier compatibility must be checked for the individual assembly.\u003c\/p\u003e\n\u003cp\u003eInclude the required quantity, preferred condition and delivery country. Actual-unit photos, supply scope, testing details and dispatch timing can be confirmed with the quotation.\u003c\/p\u003e\n\u003cp\u003eBrowse \u003ca href=\"\/es\/collections\/mitsubishi-pcbs\"\u003eMitsubishi PCB boards\u003c\/a\u003e and \u003ca href=\"\/es\/collections\/mitsubishi-drives\"\u003eMitsubishi servo drives\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"MITSUBISHI","offers":[{"title":"New","offer_id":67966263034071,"sku":"J4B-C81-NS-new","price":413.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/3784\/4183\/files\/mitsubishi-j4b-c81-ns-servo-control-pcb-main.webp?v=1793677388","url":"https:\/\/reacocnc.com\/es\/products\/mitsubishi-j4b-c81-ns","provider":"REACO CNC","version":"1.0","type":"link"}