# Toshiba Transistor / Mosfet Suffix information

**URL:** <https://forum.digikey.com/t/toshiba-transistor-mosfet-suffix-information/959>\
**Category:** Discrete Semiconductor Products\
**Tags:** toshiba-semiconductor-and-storage, part-numbering, transistors\
**Created:** [December 19, 2017, 8:17pm UTC](https://forum.digikey.com/t/toshiba-transistor-mosfet-suffix-information/959 "2017-12-19T20:17:23Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Barley\_Li](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/barley_li/32/558_2.png) [@Barley\_Li](https://forum.digikey.com/u/Barley_Li)\
**Post date:** [April 14, 2020, 4:58am UTC](https://forum.digikey.com/t/toshiba-transistor-mosfet-suffix-information/959/2 "2020-04-14T04:58:30Z")

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As you may know, Toshiba assembles their product in various assembly factories. Each factory has their own internal nomenclature in their part number suffix. To simplify ordering based upon the Generic item number where there is no difference between parts with the exception of assembly location.

Sometimes you may find some difference at the end of part numbering, such as below [SSM3K15ACT](https://www.digikey.com/en/products/filter/transistors/fets-mosfets/single-fets-mosfets/278?s=N4IgTCBcDaIMpwLIGYDSBGArAQQMIBUQBdAXyA).

1. [SSM3K15ACT,L3F(T](https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/SSM3K15ACT-L3F/SSM3K15ACTL3FCT-ND/5298036) is a Factory Part Number
2. [SSM3K15ACT,L3F](https://www.digikey.com/product-detail/en/toshiba-semiconductor-and-storage/SSM3K15ACT-L3F/SSM3K15ACTL3FTR-ND/5298026) is a Generic (orderable) part number
3. [SSM3K15ACT](https://www.digikey.com/en/products/filter/transistors/fets-mosfets/single-fets-mosfets/278?s=N4IgTCBcDaIMpwLIGYDSBGArAQQMIBUQBdAXyA) is a Base part number (datasheet PN)

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