# DG Suffix for STMicroelectronics Part Number

**URL:** <https://forum.digikey.com/t/dg-suffix-for-stmicroelectronics-part-number/2672>\
**Category:** Integrated Circuits (ICs)\
**Tags:** part-numbering, stmicroelectronics\
**Created:** [January 23, 2019, 6:41pm UTC](https://forum.digikey.com/t/dg-suffix-for-stmicroelectronics-part-number/2672 "2019-01-23T18:41:01Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ryan\_2724](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/ryan_2724/32/1716_2.png) [@Ryan\_2724](https://forum.digikey.com/u/Ryan_2724)\
**Post date:** [January 23, 2019, 6:41pm UTC](https://forum.digikey.com/t/dg-suffix-for-stmicroelectronics-part-number/2672/1 "2019-01-23T18:41:01Z")

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DG suffix in STMicroelectronics part numbers is calling out “Dual Gauge” and this is referring to having a thicker heat sink. A link is below showing an example of these part numbers:

[497-15682-5-ND | 497-1441-5-ND](https://www.digikey.com/en/products/filter/power-management-pmic/voltage-regulators-linear/699?s=N4IgTCBcDaICwE4DsBaAjAVgGwA4woxQDsATAAgB8zFU0440DiSQBdAXyA)

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**Author:** ![Bill\_Gust](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/bill_gust/32/2334_2.png) [@Bill\_Gust](https://forum.digikey.com/u/Bill_Gust)\
**Post date:** [December 7, 2020, 4:29pm UTC](https://forum.digikey.com/t/dg-suffix-for-stmicroelectronics-part-number/2672/2 "2020-12-07T16:29:32Z")

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Here is the STMicro Product Change Notice that explains why the manufacturer made the change. Basically, it improved their own process: [click here [4857.pdf](https://forum.digikey.com/uploads/short-url/cHSTscXn9VPxkz2SzL2KxFtzcuT.pdf) (172.5 KB) ]. Document name = PCN APM-SLI/09/4857