The **M2PHS2H-15B-R2/Q** is a high-density, high-speed connector component, typically part of a modular backplane system or a mezzanine board-to-board interconnect solution. These parts are often custom-ordered or specific to industrial computing standards (like VPX or OpenVPX). Below is a breakdown of the electronic and mechanical characteristics associated with this part number. --- ### 1. General Specifications The nomenclature suggests a high-pin-count header designed for robust signal integrity in demanding environments. | Feature | Description | | :--- | :--- | | **Component Type** | Mezzanine/Backplane Header Connector | | **Pin Configuration** | 15 Columns (High-density grid) | | **Termination Style** | Press-fit (Compliant Pin) | | **Pitch** | Typically 1.8mm to 2.0mm (standard for high-speed differential) | | **Data Rates** | Optimized for 10 Gbps to 25+ Gbps per differential pair | --- ### 2. Electronic Characteristics These parts are engineered to minimize crosstalk and impedance discontinuities. * **Differential Signaling:** The internal lead frames are arranged to support differential pairs, essential for high-speed protocols like PCIe Gen 4/5, Ethernet (10G/40G/100G), and InfiniBand. * **Impedance Matching:** Usually tuned to **85Ω or 100Ω** to match standard PCB traces, reducing signal reflection. * **Current Rating:** Typically **0.5A to 1.0A per pin**, designed primarily for signal rather than high-power delivery. * **Contact Resistance:** Low milliohm range (usually <20mΩ) to ensure signal stability over time. --- ### 3. Mechanical & Material Properties The "/Q" suffix often denotes a specific qualification or a variation in plating/reliability standards (e.g., Space-grade, Automotive, or Extended Durability). #### Material Breakdown | Part | Material | | :--- | :--- | | **Housing** | High-temperature Liquid Crystal Polymer (LCP), UL 94V-0 rated | | **Contacts** | Copper Alloy | | **Plating** | Gold (Au) over Nickel (Ni) on contact areas; Tin (Sn) or Lead (Pb) on tails | #### Physical Features 1. **Press-fit Technology:** Does not require soldering. The "eye-of-the-needle" pin design creates a cold-weld bond with the plated through-hole (PTH) of the PCB. 2. **Polarization:** The housing is keyed to prevent incorrect mating (mismating). 3. **Shielding:** Integrated ground planes between signal columns to mitigate Electromagnetic Interference (EMI). --- ### 4. Typical Applications * **Telecommunications:** Switches, routers, and base stations. * **Data Centers:** High-performance servers and storage arrays. * **Aerospace & Defense:** Embedded computing systems (VPX/SOSA aligned architectures). * **Industrial Automation:** High-speed PLCs and motion control backplanes. ---