{"product_id":"2-8-series-automotive-waterproof-wiring-terminal-connector-dj7011qa-2-8-21-sealed-plastic-housing-socket","title":"DJ7011QA-2.8-21 Automotive Waterproof Connector — 2.8mm Series 1-Pin Sealed Plastic Housing Socket with Terminal","description":"\u003ch2\u003eDJ7011QA-2.8-21 Automotive Waterproof Connector — 2.8mm Series, 1-Pin Sealed Housing\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eDJ7011QA-2.8-21\u003c\/strong\u003e is a 1-pin waterproof automotive connector in the 2.8mm terminal series, featuring a sealed PA66 nylon housing with integrated wire seal for reliable moisture protection in underhood and chassis wiring applications. The 2.8mm terminal pitch is widely used across Japanese and European OEM wiring harnesses for sensor, actuator, and low-to-moderate current circuits. The “QA” designation indicates a sealed (waterproof) variant with individual wire seal, providing IP67-equivalent protection when correctly assembled.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd\u003eDJ7011QA-2.8-21\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePin Count\u003c\/td\u003e\n\u003ctd\u003e1-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTerminal Pitch\u003c\/td\u003e\n\u003ctd\u003e2.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGender\u003c\/td\u003e\n\u003ctd\u003eFemale socket (“-21” suffix)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSealing\u003c\/td\u003e\n\u003ctd\u003eWaterproof (QA sealed series)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003ePA66 glass-filled nylon\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTerminal Material\u003c\/td\u003e\n\u003ctd\u003eTin-plated copper alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWire Range\u003c\/td\u003e\n\u003ctd\u003e0.3–1.0mm² (22–18 AWG)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003eUp to 7A (2.8mm terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLocking\u003c\/td\u003e\n\u003ctd\u003ePositive snap-latch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eRoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003e2.8mm Series — The Sensor Connector Standard\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.8mm pitch for sensor circuits\u003c\/strong\u003e — the 2.8mm terminal series is the dominant pitch for automotive sensor connectors (O2 sensors, coolant temperature, MAP, MAF, throttle position) across Japanese and European OEM harnesses\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQA sealed variant\u003c\/strong\u003e — the “QA” suffix indicates a waterproof sealed housing with individual wire seal; suitable for underbody, wheel well, and exterior sensor locations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e7A current rating\u003c\/strong\u003e — sufficient for all standard automotive sensor circuits (typically 0.1–1A) with ample headroom for heated sensor elements (O2 sensor heater: 1–3A)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePA66 housing\u003c\/strong\u003e — rated for continuous underhood temperatures; resistant to engine oil, coolant, and fuel vapors\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM dimensions\u003c\/strong\u003e — manufactured to DJ series mating specifications for direct replacement compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackage Options\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eOption\u003c\/th\u003e\n\u003cth\u003eContents\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSingle unit\u003c\/td\u003e\n\u003ctd\u003e1× DJ7011QA-2.8-21 housing + 1× terminal + wire seal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMulti-pack\u003c\/td\u003e\n\u003ctd\u003eMultiple sets (see variant selector)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eO2 \/ lambda sensor connector replacement (heated sensor circuits)\u003c\/li\u003e\n  \u003cli\u003eCoolant temperature and oil pressure sensor wiring repair\u003c\/li\u003e\n  \u003cli\u003eMAP \/ MAF sensor connector replacement\u003c\/li\u003e\n  \u003cli\u003eThrottle position sensor wiring harness repair\u003c\/li\u003e\n  \u003cli\u003eABS wheel speed sensor connector replacement\u003c\/li\u003e\n  \u003cli\u003eAny 2.8mm series sealed sensor connector repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eQ: What is the difference between DJ7011QA-2.8-21 and DJ7011-2.8-21?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e“QA”\u003c\/strong\u003e designation indicates a \u003cstrong\u003esealed (waterproof) variant\u003c\/strong\u003e with individual wire seals and a sealed housing. The standard DJ7011-2.8-21 (without QA) is an unsealed connector for protected interior locations. Use the QA variant for any application where moisture exposure is possible — underbody, wheel well, or exterior sensor locations.\u003c\/p\u003e\n\n\u003ch3\u003eQ: How do I identify the correct 2.8mm terminal for this housing?\u003c\/h3\u003e\n\u003cp\u003eThe DJ7011QA-2.8-21 uses a \u003cstrong\u003e2.8mm open-barrel crimp terminal\u003c\/strong\u003e compatible with the DJ series. The terminal has a wire barrel for electrical contact and an insulation barrel for strain relief. Ensure the terminal is sized for your wire gauge (0.3–1.0mm² \/ 22–18 AWG). Using an oversized terminal in a 2.8mm housing will prevent proper locking and create a loose connection.\u003c\/p\u003e\n\n\u003ch3\u003eQ: Can I use this connector for an O2 sensor with a heated element?\u003c\/h3\u003e\n\u003cp\u003eYes — the 2.8mm terminal is rated for 7A continuous, which is well above the 1–3A draw of a heated O2 sensor element. However, note that most O2 sensors use a \u003cstrong\u003emulti-pin connector\u003c\/strong\u003e (3 or 4 pin) for the combined signal and heater circuit. The DJ7011QA-2.8-21 is a 1-pin connector — verify your sensor’s connector pin count before ordering.\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"15cm Female Wire","offer_id":47363859546347,"sku":"14:350852#15cm Female Wire","price":13.2,"currency_code":"USD","in_stock":true},{"title":"15cm Female Wire 1","offer_id":47363859579115,"sku":"14:350850#15cm Female Wire","price":12.9,"currency_code":"USD","in_stock":true},{"title":"Female Connector Set","offer_id":47363859611883,"sku":"14:200004890#Female Connector Set","price":11.34,"currency_code":"USD","in_stock":true},{"title":"Female Connector Set 1","offer_id":47363859644651,"sku":"14:200004889#Female Connector Set","price":11.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/automotive-waterproof-2-8-series-terminal-connector.webp?v=1769060607","url":"https:\/\/keszoox.com\/products\/2-8-series-automotive-waterproof-wiring-terminal-connector-dj7011qa-2-8-21-sealed-plastic-housing-socket","provider":"Keszoox","version":"1.0","type":"link"}