# Part Numbering-Nidec Copal Electronics-"M" Series Potentiometers

**URL:** <https://forum.digikey.com/t/part-numbering-nidec-copal-electronics-m-series-potentiometers/19346>\
**Category:** Passives\
**Tags:** part-numbering, nidec-components-corporation, potentiometers-variable-resistors, rotary-potentiometers-rheostats\
**Created:** [January 14, 2022, 9:39pm UTC](https://forum.digikey.com/t/part-numbering-nidec-copal-electronics-m-series-potentiometers/19346 "2022-01-14T21:39:33Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![shawn\_adams](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/shawn_adams/32/25203_2.png) [@shawn\_adams](https://forum.digikey.com/u/shawn_adams)\
**Post date:** [January 14, 2022, 9:39pm UTC](https://forum.digikey.com/t/part-numbering-nidec-copal-electronics-m-series-potentiometers/19346/1 "2022-01-14T21:39:33Z")

</div>

When selecting a potentiometer from [Nidec’s](https://www.digikey.com/en/supplier-centers/copal-electronics) - [“M” series](https://www.digikey.com/en/products/filter/rotary-potentiometers-rheostats/84?s=N4IgjCBcoLQdIDGUBmBDANgZwKYBoQB7KAbRAFYA2AZhAF0BfAmAFilGUnW3yNJBYAOFpQDsIAmGpgADAE4JFcizDl6DDUA) you will see combinations of several suffixes. For example let’s take a look at Nidec part number [M-22E10-050 10K](https://www.digikey.com/en/products/detail/nidec-copal-electronics/M-22E10-050-10K/1025507). The 22E10-050 is the series name and the 10K is the resistance value as shown in the following diagram.

 ![image](https://global.discourse-cdn.com/digikey/original/3X/a/3/a3da2aef57f9a51405f29786b9c39d5b6e56c1d8.png)

The series name designates the number of turns:

 ![image](https://global.discourse-cdn.com/digikey/original/3X/3/c/3c27e94fb31a3281099594d3d97014c8e4c4cf08.png)

For specifications and dimensions please refer to the [datasheet](https://www.nidec-copal-electronics.com/e/catalog/potentiometer/m.pdf).

> **Applicable Part Numbers**
>
> | | Digi-Key Part Number | |
> | --- | --- | --- |
> | 563-2114-ND | 563-2125-ND | M-22E10-050100K-ND |
> | 563-2127-ND | 563-2120-ND | M-22S1050K-ND |
> | 563-2117-ND | 563-2121-ND | M-22S10500-ND |
> | 563-2124-ND | 563-2128-ND | M-22S10200-ND |
> | 563-2122-ND | 563-2115-ND | M-22S10100-ND |
> | 563-2118-ND | 563-2034-ND | M-1303500-ND |
> | 563-2130-ND | M-22E10-050100-ND | M-13032K-ND |
> | 563-2129-ND | M-22E10-050200-ND | M-130320K-ND |
> | 563-2116-ND | M-22E10-050500-ND | M-1303200-ND |
> | 563-2032-ND | M-22E10-05020K-ND | M-13031K-ND |
> | 563-2036-ND | M-22E10-05050K-ND | M-1303100-ND |
> | 563-2035-ND | M-22E1050K-ND | M-1305500-ND |
> | 563-2033-ND | M-22E10500-ND | M-130520K-ND |
> | 563-2119-ND | M-22E1020K-ND | M-1305200-ND |
> | 563-2123-ND | M-22E10200-ND | M-13051K-ND |
> | 563-2126-ND | M-22E10100-ND | M-1305100-ND |
> | | **Manufacturer Part Number** | |
> | M-1303 10K | M-22E10 5K | M-22E10-050 100K |
> | M-22S10 1K | M-22E10-050 2K | M-22S10 50K |
> | M-13055K | M-22E10-050 5K | M-22S10 500 |
> | M-22E10 2K | M-22S10 20K | M-22S10 200 |
> | M-22E10 10K | M-13035K | M-22S10 100 |
> | M-22E10-050 10K | M22L10-000-502 | M-1303 500 |
> | M-22S10 5K | M-22E10-050 100 | M-1303 2K |
> | M-22S10 2K | M-22E10-050 200 | M-1303 20K |
> | M-1305 10K | M-22E10-050 500 | M-1303 200 |
> | M22L10-000-102 | M-22E10-050 20K | M-1303 1K |
> | M22L10-100-203 | M-22E10-050 50K | M-1303 100 |
> | M22L10-100-103 | M-22E10 50K | M-1305 500 |
> | M22L10-000-202 | M-22E10 500 | M-1305 20K |
> | M-22E10-050 1K | M-22E10 20K | M-1305 200 |
> | M-22E10 1K | M-22E10 200 | M-1305 1K |
> | M-22S10 10K | M-22E10 100 | M-1305 100 |