# Analog Devices -SX Suffix information

**URL:** <https://forum.digikey.com/t/analog-devices-sx-suffix-information/4770>\
**Category:** RF and Wireless\
**Tags:** analog-devices-inc, part-numbering, rfif-and-rfid\
**Created:** [November 5, 2019, 4:26am UTC](https://forum.digikey.com/t/analog-devices-sx-suffix-information/4770 "2019-11-05T04:26:05Z")\
**Posts on this page:** 1\
**Page:** 1

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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:** [November 5, 2019, 4:26am UTC](https://forum.digikey.com/t/analog-devices-sx-suffix-information/4770/1 "2019-11-05T04:26:05Z")

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When looking at the [HMC-AUH249](https://www.digikey.com/products/en?keywords=HMC-AUH249) modulator driver amplifier from [Analog Devices](https://www.digikey.com/products/en?keywords=HMC-AUH249), you’ll find a part number with the “SX” suffix at Digi-Key. As one example, we’ll look at [HMC-AUH249-SX](https://www.digikey.com/product-detail/en/analog-devices-inc/HMC-AUH249-SX/1127-2738-ND/4824090). What is the meaning of this suffix?

This suffix denotes the part packaging only.

- without “SX” suffix: calls out the part in a 10-piece pack ([HMC-AUH249](https://www.digikey.com/product-detail/en/analog-devices-inc/HMC-AUH249/1127-3320-ND/5126689))

- with “SX” suffix: calls out the part in a 2-piece pack (HMC-AUH249-SX)

> **Applicable Part Numbers**
>
> HMC-AUH249  
> HMC-AUH249-SX
> 
> 1127-3320-ND  
> 1127-2738-ND