{"product_id":"lm35dz-precision-centigrade-temperature-sensor-to92-10mv-per-degree-arduino","title":"LM35DZ Precision Centigrade Temperature Sensor — TO-92, 0–100°C, 10mV\/°C, Arduino","description":"\u003ch2\u003eLM35DZ Precision Centigrade Temperature Sensor — TO-92, 0–100°C, 10mV\/°C, Arduino\u003c\/h2\u003e\u003cp\u003eThe LM35DZ is a precision analog temperature sensor from Texas Instruments in a TO-92 through-hole package. Its output voltage is linearly proportional to temperature at exactly 10mV\/°C, requiring no external calibration. With a 0–100°C range, ±0.5°C accuracy, and direct connection to any microcontroller ADC, it is the standard analog temperature sensor for Arduino projects, industrial temperature monitoring, and embedded system thermal management.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eTO-92 (through-hole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0°C – +100°C (LM35DZ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Sensitivity\u003c\/td\u003e\n\u003ctd\u003e10mV\/°C (linear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.5°C (at +25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e4V – 30V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e0.1Ω (at 1mA load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuiescent Current\u003c\/td\u003e\n\u003ctd\u003e60μA typ.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003eAnalog voltage (0–1.0V for 0–100°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003eFactory calibrated, no external trimming needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eLM35 Variant Comparison\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart\u003c\/th\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003cth\u003ePackage\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLM35DZ\u003c\/td\u003e\n\u003ctd\u003e0–+100°C\u003c\/td\u003e\n\u003ctd\u003eTO-92\u003c\/td\u003e\n\u003ctd\u003eRoom temperature, indoor monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLM35CAZ\u003c\/td\u003e\n\u003ctd\u003e-40–+110°C\u003c\/td\u003e\n\u003ctd\u003eTO-92\u003c\/td\u003e\n\u003ctd\u003eExtended range, outdoor use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLM35CZ\u003c\/td\u003e\n\u003ctd\u003e-40–+110°C\u003c\/td\u003e\n\u003ctd\u003eTO-92\u003c\/td\u003e\n\u003ctd\u003eWide range, industrial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLM35D (TO-220)\u003c\/td\u003e\n\u003ctd\u003e0–+100°C\u003c\/td\u003e\n\u003ctd\u003eTO-220\u003c\/td\u003e\n\u003ctd\u003ePCB mount with heatsink tab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eLM35DZ vs DS18B20 vs DHT22 — Which Sensor?\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eLM35DZ\u003c\/th\u003e\n\u003cth\u003eDS18B20\u003c\/th\u003e\n\u003cth\u003eDHT22\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003eAnalog (10mV\/°C)\u003c\/td\u003e\n\u003ctd\u003eDigital (1-Wire)\u003c\/td\u003e\n\u003ctd\u003eDigital (single-wire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.5°C\u003c\/td\u003e\n\u003ctd\u003e±0.5°C\u003c\/td\u003e\n\u003ctd\u003e±0.5°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eYes (±2% RH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eADC needed\u003c\/td\u003e\n\u003ctd\u003eYes (MCU ADC)\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eSimple analog circuits, op-amp integration\u003c\/td\u003e\n\u003ctd\u003eMulti-sensor 1-Wire bus\u003c\/td\u003e\n\u003ctd\u003eTemp + humidity combined\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose LM35DZ?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10mV\/°C linear output\u003c\/strong\u003e — directly readable by any ADC without lookup tables or complex math\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo calibration needed\u003c\/strong\u003e — factory trimmed to ±0.5°C accuracy out of the box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4–30V supply range\u003c\/strong\u003e — works from 5V Arduino, 12V industrial supply, or 3.3V with care\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60μA quiescent current\u003c\/strong\u003e — minimal self-heating, accurate readings without thermal management\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog output\u003c\/strong\u003e — integrates directly with op-amp comparators, ADCs, and analog control circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino UNO\/Nano\u003c\/strong\u003e: Connect Vout to A0, read with \u003ccode\u003eanalogRead(A0) * (5.0\/1023.0) * 100\u003c\/code\u003e for °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP32\u003c\/strong\u003e: 3.3V supply, connect Vout to ADC pin — \u003ccode\u003etemp = analogRead(pin) * (3.3\/4095.0) * 100\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTM32\u003c\/strong\u003e: 12-bit ADC for higher resolution temperature reading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOp-amp thermostat\u003c\/strong\u003e: LM35DZ + LM393 comparator for analog temperature threshold switching\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaspberry Pi\u003c\/strong\u003e: Requires external ADC (MCP3008) since Pi has no built-in ADC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I read LM35DZ temperature with Arduino?\u003c\/strong\u003e\u003cbr\u003eA: Connect V+ to 5V, GND to GND, Vout to Arduino A0. Code: \u003ccode\u003eint raw = analogRead(A0); float voltage = raw * (5.0 \/ 1023.0); float tempC = voltage * 100.0; Serial.println(tempC);\u003c\/code\u003e At 25°C, Vout = 250mV, raw ADC = ~51 (at 5V reference).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can LM35DZ measure below 0°C?\u003c\/strong\u003e\u003cbr\u003eA: LM35DZ is rated 0–100°C. Below 0°C, the output goes negative, which a standard single-supply ADC cannot read. To measure below 0°C, use LM35CAZ (rated -40–+110°C) with a negative supply or a virtual ground circuit. Alternatively, use DS18B20 which handles -55°C natively.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Why does my LM35DZ read higher than actual temperature?\u003c\/strong\u003e\u003cbr\u003eA: Common causes: (1) Self-heating from high supply voltage — use the lowest supply voltage possible (4–5V). (2) ADC reference voltage error — use \u003ccode\u003eanalogReference(INTERNAL)\u003c\/code\u003e (1.1V internal reference) for better resolution at low temperatures. (3) Noise on Vout — add a 100nF ceramic capacitor from Vout to GND close to the sensor.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× LM35DZ Precision Centigrade Temperature Sensor (TO-92)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991465054443,"sku":"\u003cnone\u003e","price":5.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/lm35dz-to92-precision-centigrade-temperature-sensor.webp?v=1761720068","url":"https:\/\/keszoox.com\/products\/lm35dz-precision-centigrade-temperature-sensor-to92-10mv-per-degree-arduino","provider":"Keszoox","version":"1.0","type":"link"}