Everyone loves a good book. From Shakespearean classics to more modern-day masterpieces, a solid story can leave a lasting impression.
While the VITA family of standards isn’t necessarily a book, it does have a rich history with a large impact. As we learned in a previous blog, standards are always progressing, and, in this case, so is VITA 42. What does that mean to the connector industry, and how has VITA 42 changed with Samtec? To get a solid grasp on these questions and more, let’s dive into its story.
VITA 42 So Far…
The VITA 42 XMC Standard (Express Mezzanine Card) is directly focused on meeting the requirements of high-performance systems in a rugged environment. VITA 42 is a widely deployed mezzanine Standard used in high-reliability computers implementing switched-fabric architectures. XMC combines PCI Mezzanine Card (PMC) with serial fabric technology on proven mezzanine form-factors.
Samtec’s SamArray® connector set was specified throughout the Standard. The YFS/YFW Series SamArray® system provides 114 pins in a 6 x 19 configuration (equating to 10 differential pairs in each direction), a 10mm stack height, and a 3.125 Gbps performance rating. Testing confirms that the SamArray® connector set can perform up to 10 Gbps allowing for even faster speeds in the future.
The Future of Samtec and VITA 42
While these offerings did satisfy the Standard for a time, higher speeds and additional mating options continued to be requested. As a result, Samtec has released a new webpage with an expanded line of interconnect solutions to further the VITA 42 Standard including:
New VITA 42 Web Page
A newly redesigned VITA 42 webpage has been created specifically for Samtec’s involvement in the XMC Standard. It includes standard background, product offerings, as well as direct links to VITA’s website.
Expanded XMC Library
All of Samtec’s current XMC offerings have been revised with updated technical documentation including 3D models, updated prints, and PADS files.
Variable Connector Options
VITA 42 XMC specifies solderball-equipped SamArray connectors in 10mm and 12mm stack heights. Solder options include Lead-free and Tin-lead alloys. Additional ASPs (Application Specific Products) have been added featuring low-insertion force contacts and different stack height options.
JSOM (Micro Jack Screw Standoff)
Some XMC mezzanine cards may present a challenge to unmate from their host. To aid in separation, Samtec has developed the JSOM (Micro Jack Screw Standoff.) They act as a traditional standoff when collapsed. An Allen-key unscrews and expands the jack screw, dividing the PCBs in a steady, even motion until the mezzanine is safely separated from its host. The JSOM standoff family includes M2.5, M3, and #4-40 hardware available in 10mm and 12mm stack heights.
For more information, please contact our Industry Standards Group or check one of the links below.
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