LM35DZ

The LM35DZ is a precision analog temperature sensor IC in a TO-92 package. Its output voltage rises linearly by 10 mV for every degree Celsius, so no calibration or conversion from Kelvin is needed: 250 mV means 25 °C. It is easy to read with the analog input of an Arduino and is a classic part for thermometers, temperature alarms and student projects.

LM35DZ Specifications

• Sensor type: analog temperature sensor IC (LM35D grade)
• Output: linear, +10 mV/°C (0 mV at 0 °C)
• Rated range: 0 °C to +100 °C
• Accuracy: ±0.6 °C typical at 25 °C
• Supply voltage: 4 V to 30 V
• Supply current: about 56 µA typical, so self-heating is very low
• Package: TO-92, 3 pins (+Vs, Vout, GND)

LM35DZ Applications

• Digital thermometers with an Arduino and an LCD or 7-segment display
• Over-temperature alarms and automatic fan control
• Monitoring heatsinks, battery packs and enclosures
• Room temperature logging and school science projects

What's in the Box

• 1 × LM35DZ temperature sensor (TO-92)

Tip: With the flat face towards you and the legs pointing down, the pins are +Vs, Vout and GND from left to right. On a 5 V Arduino Uno, temperature in °C = analogRead(A0) × 500 / 1023. The sensor needs at least 4 V, so power it from 5 V rather than 3.3 V.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.