NEW PRODUCT – Ultra Thin 10K Thermistor – B3950 NTC

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NEW PRODUCT – Ultra Thin 10K Thermistor – B3950 NTC


Need to measure something with a very slim sensor? This precision 10K thermistor is an inexpensive way to measure temperature in a small gap, or taped to a flat surface, it’s only 0.2mm wide!

The resistance in 25°C is 10K (+- 1%). The resistance goes down as it gets warmer and goes up as it gets cooler. For specific temperature-to-resistance, check the lookup table.

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We have a great detailed tutorial on how thermistors work and how to use this one with both Arduino & CircuitPython!

We also carry an epoxy-coated precision 1% 10K thermistor.

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In stock and shipping now!


As 2022 starts, let’s take some time to share our goals for CircuitPython in 2022. Just like past years (full summary 2019, 2020, and 2021), we’d like everyone in the CircuitPython community to contribute by posting their thoughts to some public place on the Internet. Here are a few ways to post: a video on YouTub, a post on the CircuitPython forum, a blog post on your site, a series of Tweets, a Gist on GitHub. We want to hear from you. When you post, please add #CircuitPython2022 and email circuitpython2022@adafruit.com to let us know about your post so we can blog it up here.

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CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


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