Author Topic: long side termination (reverse geometry) thermistors?  (Read 515 times)

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Offline lemonlimeTopic starter

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long side termination (reverse geometry) thermistors?
« on: January 25, 2023, 04:10:48 pm »
does anyone know some part number/product series for SMD thermistors that have their terminations on the long side of the chip, rather than the short side?

I've been scrolling through digikey/mouser catalogs but I can't find the right packages. I've seen in pictures of packaged thermistor sensors thermistors that seem to fit the bill, but I haven't been able to discover what the actual chip is. (e.g. https://www.adafruit.com/product/4890)

Maybe I'm just searching with the wrong terminology? I've seen packages like 0306 MLCCs that have just the form factor that I want, and manufacturers call them reverse geometry or just long side termination. https://www.tti.com/content/ttiinc/en/manufacturers/tdk/products/TDK-Reverse-Geometery-Multilayer-ceramic-capacitor-MLCC.html
« Last Edit: January 25, 2023, 04:18:42 pm by lemonlime »
 

Offline TimNJ

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Re: long side termination (reverse geometry) thermistors?
« Reply #1 on: January 27, 2023, 03:55:14 am »
Never seen one by itself. I don’t really see the advantage of offering a reverse geometry package for a standalone SMD NTC temperature sensor. Temperature is inherently slow, and I don't think a bit of extra inductance in a temperature sensing loop usually matters.

The reverse geometry is probably just to make it easier to solder/weld the NTC to the leads.

This might be the one, although this is quite an abridged datasheet:

https://www.thinking.com.tw/upload/product/files/en-NTC Thermistor-TTF Series.pdf
« Last Edit: January 27, 2023, 04:00:09 am by TimNJ »
 


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