Beirut ElectroCity

Thermistor PTC 1.0K

Part no. L1: K2557 / L2: - / L3: - (10390078)

$1.50
In stock
  • Pick up in Msaitbeh, Beirut
  • Delivery across Lebanon
  • Bulk and education pricing on request
Description

The Thermistor PTC 1.0K is a positive temperature coefficient (PTC) thermistor with a nominal resistance of 1.0 kΩ. Its resistance rises as its temperature rises, so an Arduino, ESP32 or comparator circuit can read it as a temperature-dependent resistor. It is a simple, low-cost part for temperature sensing, over-temperature detection and electronics lessons.

Thermistor PTC 1.0K Specifications

  • Type: PTC thermistor (positive temperature coefficient)
  • Nominal resistance: 1.0 kΩ (thermistors are normally rated at 25 °C)
  • Behaviour: resistance increases as temperature increases
  • Connection: 2 leads, no polarity
  • Reading: analog, through a voltage divider or bridge circuit

Thermistor PTC 1.0K Applications

  • Temperature measurement with an Arduino or ESP32 analog input
  • Over-temperature detection in power supplies, motors and battery packs
  • Thermostat and fan control circuits
  • Temperature compensation in analog circuits
  • Physics and electronics lab experiments

What's in the Box

  • 1 × PTC thermistor, 1.0 kΩ

Tip: Connect the thermistor in series with a fixed 1 kΩ resistor between 5 V (or 3.3 V) and GND and read the midpoint with an analog pin. Keep the current low so the thermistor does not heat itself, and calibrate your readings against a known thermometer.

Shipping & pickup

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