{"product_id":"20mm-gl20528-light-sensitive-photoresistor-ldr","title":"20mm GL20528 Light Sensitive Photoresistor LDR","description":"\u003cp\u003eThe resistance of 20mm GL20528 Light Sensitive Photoresistor LDR changes with the change in the ambient light exposed on the surface of the sensor. As the light on the sensor increases then the resistance across the two leads decreases. Light Dependent Resistor is a type of\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/robu.in\/product-tag\/photoresistor\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cstrong\u003ephotocell\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewhich finds excellent use in light sensing device application, whether it is automatic outdoor light ON\/OFF switch or indoor automatic light switch; moreover, the 12mm LDR or\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/robu.in\/product-tag\/photoresistor\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cstrong\u003ephotoresistor\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003esensor works best in both light and dark regions. The photo-resistor is a staple of electronics. If you need a way to sense the level of ambient light, then there is no easier way to do it without an LDR\/photo-resistor.\u003c\/p\u003e\n\u003cp\u003eTwo Cadmium Sulphide PhotoConductive Cells with spectral responses similar to that of the human eye. Cell resistance falls with increasing light intensity. Applications of this product include smoke detection, automatic lighting control, batch counting, and burglar alarm systems. Furthermore, some of the applications are given below.\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Analog Applications:\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003col\u003e\n\u003cli\u003eCamera exposure control\u003c\/li\u003e\n\u003cli\u003eAuto slide focus - dual cell\u003c\/li\u003e\n\u003cli\u003ePhotocopy machines - the density of the toner\u003c\/li\u003e\n\u003cli\u003eColorimetric test equipment\u003c\/li\u003e\n\u003cli\u003eDensitometer\u003c\/li\u003e\n\u003cli\u003eElectronics scales - dual cell\u003c\/li\u003e\n\u003cli\u003eAutomatic gain control - modulated light source\u003c\/li\u003e\n\u003cli\u003eAutomated rear view mirror\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cstrong\u003eDigital Applications:\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003col\u003e\n\u003cli\u003eAutomatic headlight dimmer\u003c\/li\u003e\n\u003cli\u003eNightlight control\u003c\/li\u003e\n\u003cli\u003eOil burner flame out\u003c\/li\u003e\n\u003cli\u003eStreetlight control\u003c\/li\u003e\n\u003cli\u003eAbsence\/presence (beam breaker)\u003c\/li\u003e\n\u003cli\u003ePosition sensor\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cstrong\u003eOther applications:\u003c\/strong\u003e\n\u003col\u003e\n\u003cli\u003eAnnunciator\u003c\/li\u003e\n\u003cli\u003eCamera automatic photometry\u003c\/li\u003e\n\u003cli\u003eElectronic toy\u003c\/li\u003e\n\u003cli\u003eIndustrial control\u003c\/li\u003e\n\u003cli\u003eLight control\u003c\/li\u003e\n\u003cli\u003eLight control lamp\u003c\/li\u003e\n\u003cli\u003ePhotoelectric control\u003c\/li\u003e\n\u003cli\u003eSwitch\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eTo know more about photo-resistor, click here.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/www.resistorguide.com\/photoresistor\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eWhat is photo-resistor?\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eCoated with epoxy\u003c\/li\u003e\n\u003cli\u003eGood reliability\u003c\/li\u003e\n\u003cli\u003eHigh sensitivity\u003c\/li\u003e\n\u003cli\u003eSmall volume\u003c\/li\u003e\n\u003cli\u003eFast response\u003c\/li\u003e\n\u003cli\u003eGood spectrum characteristic\u003c\/li\u003e\n\u003cli\u003eModel: GL20528 ( GM20528 )\u003c\/li\u003e\n\u003cli\u003eSize: 20mm\u003c\/li\u003e\n\u003cli\u003eMax. voltage: 500 VDC\u003c\/li\u003e\n\u003cli\u003eMax. power: 500 mW\u003c\/li\u003e\n\u003cli\u003eSpectrum Peak Value (nm): 560\u003c\/li\u003e\n\u003cli\u003eLight resistance ( KΩ) : 10--20 kΩ\u003c\/li\u003e\n\u003cli\u003eDark resistance ( KΩ): 2 kΩ.\u003c\/li\u003e\n\u003cli\u003eΥ value : 0.6.\u003c\/li\u003e\n\u003cli\u003eIncrease response time: 30 mS.\u003c\/li\u003e\n\u003cli\u003eDecrease response time: 30 mS.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch4\u003e\u003cstrong\u003ePackage Includes :\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv\u003e1 x 20mm GL20528 Light Sensitive Photoresistor LDR. \u003c\/div\u003e\n\u003cdiv\u003especification : \n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer:\u003c\/td\u003e\n\u003ctd\u003eGeneric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter (mm):\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Wavelength\u003c\/td\u003e\n\u003ctd\u003e560nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNo. of Pins:\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDark Resistance:\u003c\/td\u003e\n\u003ctd\u003e2kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Resistance:\u003c\/td\u003e\n\u003ctd\u003e10 to 20kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Voltage (V):\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Power (W)\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time (uS)\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional Specs.:\u003c\/td\u003e\n\u003ctd\u003eDark Resistance: Max 2 kOhm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e0.001 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e1 × 1 × 1 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Jaideep Robotics","offers":[{"title":"Default Title","offer_id":46433045938349,"sku":"44118","price":23.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/7638\/9293\/files\/download-2026-06-27T161134.352.avif?v=1782556901","url":"https:\/\/jaideeprobotics.com\/products\/20mm-gl20528-light-sensitive-photoresistor-ldr","provider":"Jaideep Robotics ","version":"1.0","type":"link"}