{"product_id":"10-pcs-mc21b-catalytic-flammable-gas-sensor","title":"10 PCS MC21B Catalytic Flammable Gas Sensor","description":"\u003cp\u003eThe MPn-5 semiconductor propane sensor adopts a multi-layer thick-film manufacturing process. A heating electrode, measuring electrode and metal oxide semiconductor gas-sensitive layer are integrated on an Al2O3 ceramic substrate and encapsulated in a metal housing.\u003cbr\u003e\u003cbr\u003eWhen propane is present in the ambient air, the conductivity of the sensing material changes with gas concentration. This conductivity change can be converted into an electrical output signal through a simple measurement circuit.\u003cbr\u003e\u003cbr\u003eMPn-5 provides high sensitivity to \u003ca href=\"https:\/\/www.gasnose.com\/gases\/flammable-gases\/propane\/\" target=\"_blank\" rel=\"noopener\"\u003eC3H8\u003c\/a\u003e, excellent stability and enhanced resistance to common interfering gases. The sensor has achieved UL 2075 certification and is designed for a service life of up to 10 years, supporting OEM manufacturers developing residential, commercial and industrial combustible gas detection products. \u003c\/p\u003e\n\u003ch4 class=\"text-6 pb-2\"\u003eApplication\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePropane gas leak alarms\u003c\/li\u003e\n\u003cli\u003eLiquefied gas leak monitoring devices\u003c\/li\u003e\n\u003cli\u003eCombustible gas detectors\u003c\/li\u003e\n\u003cli\u003eResidential gas leak detectors\u003c\/li\u003e\n\u003cli\u003eCommercial gas leak detectors\u003c\/li\u003e\n\u003cli\u003eFactory gas leak detection systems\u003c\/li\u003e\n\u003cli\u003eHome fire and safety detection systems\u003c\/li\u003e\n\u003cli\u003eCommercial fire and safety detection systems\u003c\/li\u003e\n\u003cli\u003eGas leak alarms\u003c\/li\u003e\n\u003cli\u003eOEM propane detectors\u003c\/li\u003e\n\u003cli\u003eOEM combustible gas detection products\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"text-6 pb-2\"\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUL 2075 certified\u003c\/li\u003e\n\u003cli\u003eUp to 10-year service life\u003c\/li\u003e\n\u003cli\u003eHigh sensitivity to C3H8\u003c\/li\u003e\n\u003cli\u003eExcellent anti-interference ability\u003c\/li\u003e\n\u003cli\u003eExcellent long-term stability\u003c\/li\u003e\n\u003cli\u003eEnhanced resistance to common household interferents\u003c\/li\u003e\n\u003cli\u003eReduced cross-sensitivity to alcohol\u003c\/li\u003e\n\u003cli\u003eDesigned to reduce interference from cooking vapors\u003c\/li\u003e\n\u003cli\u003eDesigned to reduce interference caused by humidity changes\u003c\/li\u003e\n\u003cli\u003eMulti-layer thick-film manufacturing process\u003c\/li\u003e\n\u003cli\u003eMetal oxide semiconductor sensing technology\u003c\/li\u003e\n\u003cli\u003eCompact metal-cap package\u003c\/li\u003e\n\u003cli\u003eSuitable for OEM gas detector integration\u003c\/li\u003e\n\u003cli\u003eIn-house control of core materials and manufacturing processes\u003c\/li\u003e\n\u003cli\u003eStable product quality\u003c\/li\u003e\n\u003cli\u003eStable supply and lead-time support \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"text-6 pb-2\"\u003eSpecifications\u003c\/h4\u003e\n\u003cdiv class=\"table-container\"\u003e\n\u003ctable class=\"table table-hover table-bordered\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eMPn-5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003eFlat Surfaced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Encapsulation\u003c\/td\u003e\n\u003ctd\u003eMetal Cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Gas\u003c\/td\u003e\n\u003ctd\u003eLiquefied Gas \/ C3H8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003e0～5250ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoop Voltage (Vc)\u003c\/td\u003e\n\u003ctd\u003e≤24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Voltage (VH)\u003c\/td\u003e\n\u003ctd\u003e5V±0.1V AC or DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Resistance (RL)\u003c\/td\u003e\n\u003ctd\u003eAdjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Consumption (PH)\u003c\/td\u003e\n\u003ctd\u003e305±25mW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater Current (IH)\u003c\/td\u003e\n\u003ctd\u003e61±5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitive Resistance (RS)\u003c\/td\u003e\n\u003ctd\u003e1kΩ～20kΩ (in 2000ppm C3H8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity (S)\u003c\/td\u003e\n\u003ctd\u003eRs(in air) \/ Rs(in 2000ppm C3H8) ≥8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConcentration Slope (α)\u003c\/td\u003e\n\u003ctd\u003e≤0.6 (R2000ppm \/ R500ppm C3H8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Test Temperature \/ Humidity\u003c\/td\u003e\n\u003ctd\u003e20℃±2℃; 55%±5%RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard Test Circuit\u003c\/td\u003e\n\u003ctd\u003eVc: 5V±0.1V; VH: 5V±0.1V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreheat Time\u003c\/td\u003e\n\u003ctd\u003eNot less than 48 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO2 Content\u003c\/td\u003e\n\u003ctd\u003e21% (not less than 18%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifespan\u003c\/td\u003e\n\u003ctd\u003e10 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eUL 2075\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.\u003c\/p\u003e","brand":"Winsen Electronics","offers":[{"title":"Default Title","offer_id":48842606903488,"sku":null,"price":28.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/8008\/4416\/files\/MC21B.jpg?v=1722933549","url":"https:\/\/shop.winsen-sensor.com\/products\/10-pcs-mc21b-catalytic-flammable-gas-sensor","provider":"Winsen Electronics","version":"1.0","type":"link"}