# 5055512420 (Component) ## Description 24 Position Connector Plug, Outer Shroud Contacts Surface Mount Gold The 5055512420 is a high-density board-to-board (mezzanine) connector from Molex, designed for compact electronic assemblies requiring reliable and low-profile PCB interconnections. This connector belongs to the SlimStack 505551 series, which is optimized for fine-pitch, space-saving designs. It is a plug-type (male) connector intended to mate with a corresponding receptacle to create a stacked PCB configuration. Key Features Connector Type: Board-to-board (mezzanine), plug with outer shroud contacts Number of Positions: 24 pins Pitch: 0.40 mm (fine pitch for high-density layouts) Rows: 2 (dual-row configuration) Mounting Type: Surface Mount (SMT) Mated Height: ~0.8 mm (ultra-low profile stacking) Height Above PCB: ~0.68 mm Contact Finish: Gold-plated contacts for reliable conductivity Feature: Solder retention for improved mechanical stability during assembly The 5055512420 enables direct PCB-to-PCB connections without the need for cables. Its fine pitch and low stacking height make it ideal for compact devices where vertical space is limited. The outer shroud design helps improve alignment and mating reliability, while gold-plated contacts ensure stable electrical performance over repeated connections. #CommonPartsLibrary #Connector #SlimStack 505551 #505551-2420 ## Component Details - **Owner:** adrian95 - **Created:** 4/23/2026 - **Last Updated:** 4/23/2026 - **Visibility:** Public - **Package or Case Code:** TO - **License:** https://creativecommons.org/licenses/by/4.0/ - **Part Type:** Connectors - **Manufacturer Part Number:** 505551-2420 - **Manufacturer Name:** Molex - **Datasheet URL:** https://www.molex.com/content/dam/molex/molex-dot-com/products/automated/en-us/salesdrawingpdf/505/505551/5055512420_sd.pdf?inline - **Part Type:** Connectors - **Sub-Type:** RF / Coaxial Connectors - **Manufacturer:** Molex - **MPN:** 505551-2420 - **Mount Type:** Surface Mount - **Package / Case Code:** TO - **Pin Count:** 28 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | 1 | | | 2 | 2 | | | 3 | 3 | | | 4 | 4 | | | 5 | 5 | | | 6 | 6 | | | 7 | 7 | | | 8 | 8 | | | 9 | 9 | | | 10 | 10 | | | 11 | 11 | | | 12 | 12 | | | 13 | 13 | | | 14 | 14 | | | 15 | 15 | | | 16 | 16 | | | 17 | 17 | | | 18 | 18 | | | 19 | 19 | | | 20 | 20 | | | 21 | 21 | | | 22 | 22 | | | 23 | 23 | | | 24 | 24 | | | MP1 | MP1 | | | MP2 | MP2 | | | MP3 | MP3 | | | MP4 | MP4 | | --- *Generated from [https://www.flux.ai/adrian95/5055512420](https://www.flux.ai/adrian95/5055512420)*