# G suffix for on-semiconductor transistor (BJT)

**URL:** <https://forum.digikey.com/t/g-suffix-for-on-semiconductor-transistor-bjt/71638>\
**Category:** Discrete Semiconductor Products\
**Tags:** onsemi, part-numbering, transistors\
**Created:** [August 28, 2026, 4:28pm UTC](https://forum.digikey.com/t/g-suffix-for-on-semiconductor-transistor-bjt/71638 "2026-08-28T16:28:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Justen\_Lee](https://avatars.discourse-cdn.com/v4/letter/j/ed8c4c/32.png) [@Justen\_Lee](https://forum.digikey.com/u/Justen_Lee)\
**Post date:** [August 28, 2026, 4:28pm UTC](https://forum.digikey.com/t/g-suffix-for-on-semiconductor-transistor-bjt/71638/1 "2026-08-28T16:28:54Z")

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If you come across a on-semiconductor transistor with a G suffix such as [MJ21194G](https://www.digikey.com/en/products/detail/onsemi/MJ21194G/919459)

The G suffix designates that the transistor is ROHS compliant.

 ![image](https://global.discourse-cdn.com/digikey/original/3X/4/b/4b8ea6fed6e9f7e4dab9f7aa81ab7459931e7053.png)