The XCede ® HD Plus backplane connector achieves high . Amphenol Communications Solutions; Done. Amphenol TCS XCede® Backplane Connectors are designed to offer readily available 85Ω and 100Ω solutions while maintaining the same mating interfaces. 0 REFERENCE 2. 1. XCede HD, Backplane Connectors, Right Angle Header HSD, 4-pair, 8-column, 85ohms. Up to 82 differential pairs. XHD2 DC without A wafer extra ground are mated to standard XCede HD (hereinafter XHD) BMAs or XHD2 without extra ground BMAs. XCede. 7mil Compliant Pin Critical Zone 13 Figure 9: Diagram of a dual diameter via with the XCede® HD compliant pin 13 Figure 10: Antipad Clearance – XCede® HD & XCede® HD Plus Backplane Connector 14 XCede ® HD Plus Orthogonal Direct (In Design) Mating with XCede HD Plus daughtercard directly without using midplane • 8 Pair Ortho is in design which can be mated with XHD Plus 3/4/6 Pair • 28+Gbps 8 Pair Orthogonal 90 Degree Mates with 4 Pair Plus daughtercard modules 8 Pair Orthogonal 270 Degree Mates with 6 Pair Plus daughtercard modules XCede HD Plus, Backplane Connectors, Vertical Header, 6-pair, 8-column, Open Wall, With Extra Ground. 1 XCede HD , XCede HD PLUS & XCede HD2 Daughtercard Customer Use Drawings 2. High-speed, high-density backplane systems include ExaMAX ® and XCede ® HD in a variety of pair and column counts. 50mm Pitch FFC/FPC Autolock Connectors - F33M/F332 Series. pair connector, leadfree part no. XCede HD Plus, Backplane Connectors, Right Angle Receptacle Without Extra Ground, 4-pair, 8-column, 85ohms. TB-2344 XCede HD2 Connector Design Guidelines . 1 The standard XCede HD differential interconnect platform consists of connectors featuring 3 Pair, 4 Pair, and 6 Pair variations. 16G FC Transceivers. ExaMAX® enables up to 56 Gbps performance and allows designers the option to optimize density or minimize board layer count. refer tb-2307 for xcede hd plus product specifications. Buy XCede HD Plus Series Backplane Connectors. 3. Amphenol is one of the leading manufacturers of backplane connectors. c-jx419-50142 a creo files jx419-50142. XCede, High speed backplane connectors, 6-Pair, 6 Position, Open. Embedded capacitor availability. Amphenol is one of the leading manufacturers of Backplane connectors. 1 DOCUMENTS 2. XCede Plus, High speed backplane connectors, 6-Pair, bp, Double End Wall, 270 deg, 100 ohm. DESIGNED TO ACHIEVE 32G DATA RATE REQUIREMENTS. backplane board reference see detail a detail a scale 12/1 isometric view compliant guide seated fully scale 3/1 4 6. jx419-50137 rev drawing no. XCede HD Plus, Backplane Connectors, Right Angle Receptacle With Extra Ground, 4-pair, 6-column, 100ohms. PC/104™ & PC/104 Plus™. Environmental Compliance. drw amphenol xcede hd plus configurator ver210701 size d scale 1/1 sheet 1 of 2 notes: distance from first stiffener pilot hole to left end of stiffener. 33 Figure 16: Force vs. Amphenol Communications Solutions; Done. 8 mm, Header, Press Fit. XCede HD, Backplane Connectors, Right Angle Receptacle LC, 6-pair, 6-column, 85ohms. 2. Vertical or Right Angle. plated through hole to connect to chassis for grounded guide module option. dimension 7. Samtec's XCede HD consists of signal, power, and keying/guidance modules for incredible design flexibility, combining a small form factor for significant board and system space savings. 2. Webinars. EIA-364-B Electrical Connector Test Procedure Including Environmental Classifications 2. Offering a linear density of up to 84 differential pairs per inch (33 differential pairs per centimeter), the XCede ® HD Plus connector meets the high density needs of today’s . These connectors are ideal for meeting a wide variety of application needs, including Ethernet and PCI. Description. 7. Contact us today for more details of XCede HD2 PN972-602J-G0HXCede, High speed backplane connectors, 2-Pair, 8 Position, Right wall. High-speed, high-density backplane systems include ExaMAX ® and XCede ® HD in a variety of pair and column counts. Up to 82 differential pairs per linear inch. 11. We also have solutions for more niche applications. 00mm pitch (FF5026) and 050mm pitch (FF3025). 1. XCede® HD is a small form factor system with a modular design for significant space savings and. 502 In Stock. jx435-50063 rev drawing no. Integrated power, guidance, keying and side walls available. Samtec XCede® HD 3. 3-, 4- and 6-pair designs; 4, 6 or 8 columns; Three levels of sequencing enable hot plugging; Up to 3. refer to tb-2235 and tb-2307 for xcede hd and hd plus product specifications. Request a Quote Email Supplier Datasheet Suppliers. notch designates "row a" side of shroud. XCede Plus, High speed backplane connectors, 4-Pair, Left Wall. nominal dimensions are for fully seated connectors. nominal dimensions are for fully seated connectors. Samtec XCede® HD HPTS 3. For mezzanine, we offer best-in-class signal integrity with very small stack heights. 2. XCede ® HD and XCede ® HD Plus, this connector provides . Engineering News. 6. We’ll connect you with a product specialist who can help you find the answers to your specific application questions. Amphenol Communications Solutions. 00mm FFC/FPC Connectors. Search. 2. 4, 6 or 8 columns. 4. Provides a complete solution for unique requirements. 1. 33 Figure 16: Force vs. XCede HD 923-310J-70H. 1-844-558-3291; Email a Specific Product Group. Amphenol Communications Solutions XCede high-performance backplane connector system. Skip to Main Content (800) 346-6873. PC/104™ & PC/104 Plus™. asm jx410-51594_bp. Request a Quote Email Supplier Datasheet Suppliers. The XCede® HD Plus backplane connector achieves high performance (up to 28+ Gb/s) in a Hard Metric form factor. Search. Change Location. New Product. Click to download Certificate of Compliance Report. 2. XCede HD connector system. nominal dimensions are for fully seated connectors. TARGET MARKETS. Please confirm your currency selection:Buy XCede HD Plus Series Backplane Connectors. XCede Plus, High speed backplane connectors, 4-Pair, Left Wall. Guidance and keying options. element14 Philippines offers special pricing, same day dispatch, fast delivery, wide inventory, datasheets & technical support. TB-2237 XCede HD Family Routing Guidelines . signal connectors can be configured with 2, 4 or 6 differential pairs per column, providing up to 82. asm jx419-50140. 1. Offering a linear density of up to 84 differential pairs per inch (33 differential pairs per centimeter), the XCede ® HD Plus connector meets the high density needs of today’s . 85 Ω and 100 Ω options. Amphenol Communications Solutions; Done. backplane board reference see detail a detail a scale 12/1 isometric view compliant guide seated fully scale 4/1 6 6 2 6 4 0. XCede HD Plus, Backplane Connectors, Vertical Header, 6-pair, 6-column, Right End Wall, With Extra Ground. The XCede HD® connector leverages the same core technologies as standard XCede®, providing a robust solution for tighter card pitches and chassis designs where space requirements and density are critical. Please confirm configuration with the Series Print before final design in. Amphenol Xcede Series High Speed / Modular Connectors are available at Mouser Electronics. TB-2023 Amphenol TCS Commercial Connector Qualification Plan . 1. asm jx419-50138. 1. XCEDE HD PLUS Amphenol Communications Solutions XCede HD Plus 915-431B-F0H. 80 13. 60) 0. DETAILS. 60 amp power connectors featuring a modular high power and signal combo for. 4. 3. XCede HD Plus, XCede HD Plus, 4-Pair, Power, Daughtercard Module, Amphenol is one of the leading manufacturers of Backplane connectors. 8 mm column pitch representing a 35% increase versus XCede®. 8 mm, Header, Press Fit. c-jx419-50140 a creo files jx419-50140. rev see tables 1 & 3 n/a drawing no. XCede HD, Backplane Connectors, Right Angle Receptacle HSD, 2-pair, 4-column, 85ohms. Buy Backplane Connectors. 信号端子上可实现高达3. refer to tb-2235 and tb-2307 for xcede hd and hd plus product specifications. Part #. XCede ® HD2. Lowest profile height. XCede, High speed backplane connectors, 6-Pair, male, low profile. refer tb-2307 for xcede hd plus product specifications 6. Offering a linear density of up to 84 differential pairs per inch (33 differential pairs per centimeter), the XCede® HD connector meets the requirements of high-density architectures with a 35% increase in density as compared to standard XCede®. Amphenol is one of the leading manufacturers of Backplane connectors. notch feature on opposite side from part marking. 2 Commercial Standards 2. c-jx435-50064 a creo files jx435-50064. Products & Services. XCede HD Plus, Backplane Connectors, Vertical Header, 3-pair, 4-column, Left End Wall, With Extra Ground. see tb-2237 for routing guidelines. 1. HDTM - XCede® HD 1. 28G ADDITION TO THE XCEDE ® HD FAMILY XCede ® HD plus leverages the same. XCede HD, Backplane Connectors, Vertical Header, 4-pair, 8-column, Left Polarized Guide, Thick Sidewall. for connector repairability, use keepout zone. Receptacle connectors and pin connectors are through-hole devices with eye-of-the-needle compliant pin contacts. 80 mm column pitch. 2 Commercial Standards 2. 7. XCede Plus, High speed backplane connectors, ortho bp, 2-Pair, 90deg 85ohm. Contact us today for more details of XCede HD Plus, part number JX419-50141. Contact us today for more details of XCede HD Plus, part number 928-4050-A7HXCede, High speed backplane connectors, 3-Pair, 8 Position, Open. XCede HD Plus, Backplane Connectors, Vertical Header, 3-pair, 4-column, Left Polarized Guide, With Extra Ground. Request a Quote Email Supplier Datasheet Suppliers. 4、6或8列. 2. EU RoHS: Compliant. XCede ® HD backplane connector achieves high performance (up to 20 Gb/s) in a Hard Metric form factor. 高性能系统. 2 Commercial Standards 2. 2. pair connector, leadfree part no. Contact us today for more details of XCede HD Plus, part number 926-401E-40HThe XCede ® HD Plus backplane connector achieves high . Request a Quote Email Supplier Datasheet Suppliers. 1. Offering a linear density of up to 84 differential pairs per inch (33 differential pairs per centimeter), the XCede® HD Plus connector meets the high-density needs of today's challenging architectures. 3. Notes1: XCede HD RAM and XCede HD Inverted RAM use the same tool of XCede HD Daughter. DETAILS. For example, Mini Cool Edge, Swift, and Flash support 112Gb/s channels with intra-box point-to-point connectivity. This document is intended to serve as an application guide for designing the XCede HD connector system into various customer system configurations. XCede Plus, High speed backplane connectors, 4-Pair, Left Wall. Back Accessories; Alarms, Buzzers, and Sirens; Buzzer Elements, Piezo Benders;. A ROBUST SOLUTION FOR TIGHTER CARD PITCHES AND CHASSIS DESIGNS XCede® HD backplane connector achieves high performance (up to 20 Gb/s) in a Hard. Additional margin and overall system savings. Samtec XCede® HD 3. Notes1: XCede HD RAM and XCede HD Inverted RAM use the same tool of XCede HD Daughter. Amphenol Communications Solutions; Done. XCede HD Plus, Backplane Connectors, Right Angle Receptacle Without Extra Ground, 3-pair, 4-column, 85ohms. XCede HD Plus, Backplane Connectors, Vertical Header, 3-pair, 8-column, Open Wall, With Extra Ground. Buy XCede HD Plus Series Backplane Connectors. 34 Amphenol is the leader in high-speed, high-density connection systems, designing and manufacturing the industry's leading connectors and backplane systems. XCede HD Plus, Backplane Connectors, Vertical Header, 3-pair, 4-column, Right Polarized Guide, With Extra Ground. Connector Header, Male Pins. XCede® HD backplane connector achieves high performance (up to 20 Gb/s) in a Hard Metric form factor. XCede HD connector system. The XCede HD, XCede HD PLUS & XCede HD2 daughtercard connector can be assembled using individual segments up to 8” in length (8 inches for 3 and 4 pair connectors and 6 inches for 6 pair connectors), and segments may be joined after individual pressing to total over 18” in length. Part # BSP-226769-01. Request a Quote Email Supplier Datasheet Suppliers. xcede hd backplane assembly 4 pair connector, leadfree part no. Two press-fit sizes, (standard and small) provide board layout options for designers. The XCede ® HD Plus backplane connector achieves high . 1 EIA-364-B Electrical Connector Test Procedure Including Environmental Classifications 2. XCede ® HD2 § mount connector designs § Lowers overall system costs by reducing or eliminating the need for expensive active devices like retimers and high performance board materials § Market leading backplane connector families - XCede®, XCede® Plus, and X2 § §Proven reliability of passive twin ax copper coupled with These Backplane Connectors and systems such as the ExaMAX® high-speed backplane system offer 56 Gbps PAM4 performance. refer tb-2307 for xcede hd plus product specifications. DETAILS. 20mm Power Modules. TB-2237 XCede HD Routing Guidelines . 11. Features. 7. XHD2 DC with A wafer extra ground is mated to XCede HD PLUS (hereinafter XHD+) or XHD2 backplane module assemblies (hereinafter BMAs) with extra ground BMAs. 6. 5. Back Audio Products. 1 The test samples are XCede HD 4 Pair 85 ohm daughtercard and backplane connectors. XCede HD Plus, Backplane Connectors, Vertical Header, 3-pair, 6-column, Open Wall, With Extra Ground. 2 GR-1217-CORE-Generic Requirements for Separable Electrical Connectors used in Telecommunications HardwareXCede HD Plus, Backplane Connectors, Right Angle Receptacle With Extra Ground, 4-pair, 8-column, 85ohms. Scalable upgrades to 56Gb/s without costly redesigns. Contact us today for more details of XCede, part number 958-2100-A1HBACKPANEL CONNECTORS BACKPLANE CONNECTOR SYSTEM XCede® connector platform is designed to provide headroom for high-speed, serial data rates demanded by data centers and service provider networks. 0177" drill, nano ni, std gold 1. TB-2023 Amphenol TCS Commercial Connector Qualification Plan TB-2237 XCede HD Routing Guidelines 2. Distance Graph showing the "Max Force Per Pin" zone. Standard Package. XCede HD, Backplane Connectors, Right Angle Header LC, 4-pair, 10-column, 85ohms. The SFP+ loopbacks are offered as passive electrical modules and come with and without EMI spring fingers. Daughtercard Connector Backplane Connector Nanocrystalline (APP) P/N: JX410-50029 Date Code: 1235. XCede HD Plus, Backplane Connectors, Vertical Header, 6-pair, 8-column, Right Polarized Guide, With Extra Ground. Amphenol TCS XCede® Backplane Connectors are designed to offer readily available 85Ω and 100Ω solutions while maintaining the same mating interfaces. The system's modularity allows designers to. Amphenol is one of the leading manufacturers of backplane connectors. Standards. XCede HD Plus, Backplane Connectors, Vertical Header, 6-pair, 8-column, Double End Wall, With Extra Ground. XCede HD & XCede HD PLUS press fit backplane connector family onto a printed circuit board (PCB). . XCEDE HD PLUS Amphenol Communications Solutions XCede HD Plus 915-421B-F0H. XCede HD Plus, Backplane Connectors, Right Angle Receptacle Without Extra Ground, 3-pair, 6-column, 85ohms. For example, Mini Cool Edge, Swift, and Flash support 112Gb/s channels with intra-box point-to-point connectivity. XCEDE HD PLUS Amphenol Communications Solutions XCede HD Plus 915-420B-F0H. Amphenol is one of the leading manufacturers of XCede high speed backplane connectors. Contact us today for more details of XCede HD2 PN919-411B-C0HAmphenol is one of the leading manufacturers of backplane connectors. 1. XCede HD achieves the highest performance in an HM compatible form factor. 90 16. 10164741-904LF. footprints are for custom 916 leadoff single end product only. 1. Amphenol’s high speed loopback modules include 10G SFP+, 28/56G QSFP, 40G QSFP+, 200G / 400G QSFP DD and OSFP. DESIGNED TO ACHIEVE 32G DATA RATE REQUIREMENTS. § Differential pairs 28-84 per inch (11-33 differential pairs per Samtec's XCede HD small form factor high-density backplane system is ideal for density-critical applications. Distance Graph showing two shapes of the knee area utilizing an MEP-12T press. DETAILS. Buy 926-401J-40H - Amphenol Communications Solutions - Connector, 4 Col x 4 Diff Pair, XCede HD Plus Series, 1. 2. XCede ® HD2 § The XCede® HD Plus backplane connector achieves high performance (up to 28+ Gb/s) in a Hard Metric form factor. XCede HD Plus, Backplane Connectors, Vertical Header, 6-pair, 6-column, Double End Wall, With Extra Ground. GR-1217-CORE-Generic Requirements for Separable Electrical Connectors used in Telecommunications. The interconnect system features. XCede HD Plus, Backplane Connectors, Vertical Header, 3-pair, 6-column, Left Polarized Guide, With Extra Ground. Contact us today for more details of XCede HD Plus, part number 926-401J-40HXCede HD Plus, Backplane Connectors, Right Angle Receptacle With Extra Ground, 4-pair, 6-column, 85ohms. Mouser Part # 200-BSP-226769-01. 0. drw amphenol xcede hd plus configurator ver210701 size d scale 1/1 sheet 1 of 2 notes: distance from first stiffener pilot hole to left end of stiffener. 8 mm column pitch representing a 35% increase versus XCede®. jx419-50139 rev drawing no. 0177" drill, nano ni, std gold 1. Ruggedized design for high reliability and ease of application. XCede, High speed backplane connectors, 3-Pair, 8 Position, Open. 5. Hard Metric compliant. Request a Quote Email Supplier Datasheet Suppliers. asm jx435-50064. XCede HD, Backplane Connectors, Right Angle Header HSD, 4-pair, 6-column, 85ohms. China RoHS: Compliant. XCede, High speed backplane connectors, 4-Pair, orthogonal l&Right Wall, 270 deg 100 ohm. 2. xcede hd plus backplane assembly 4 pair connector, leadfree part no. The series offers mechanical longevity and. XCede, High speed backplane connectors, 2-Pair, 6 Position, Left &Right Wall. XCede HD, Backplane Connectors, Right Angle Receptacle LC, 2-pair, 4-column, 85ohms. 0177" drill, nano ni, std gold 1. Contact us today for more details of XCede HD2 PN919-610B-C0HXCede HD, Backplane Connectors, Right Angle Header LC, 4-pair, 4-column, 85ohms. 1. 0 Header BarKlip BK100 IO Cable Connector 1 VCC DR SMT 10089480-100X (LF) BarKlip BK100 IO Cable Connector 2 PwrBlade+ Series ACP Plug and Receptacles SM-BTE80 D, followed by A thru E Bergstak eHPCE CRPS connector 10147875 VCC DR TMT ExaMax® RAH Connector 10089514-100X(LF) Crimp to wire pins Daisy chain contact Head connectors Latch. refer to tb 2307 for xcede hd plus product specification. XHD2 DC without A wafer extra ground are mated to standard XCede HD (hereinafter XHD) BMAs or XHD2 without extra ground BMAs. Distance Graph showing two shapes of the knee area utilizing an MEP-12T press. 0. XCede HD, Backplane Connectors, Right Angle Header LC, 4-pair, 6-column, 85ohms. PC/104™ & PC/104 Plus™. These connectors are two-piece devices that connect two printed circuit boards. Amphenol is one of the leading manufacturers of Backplane connectors. Distance Curve of MEP-12T press for XCede HD , XCede HD PLUS & XCede HD2 connectors. Contact us today for more details of XCede HD Plus, part number JX419-50138 JX419-50138 | XCede HD Plus | Amphenol Connector Type: Board to Board Connector; PC Card Connector; Geometry: Right Angle; Termination: Press-Fit;. 2. XHD2 DC with A wafer extra ground is mated to XCede HD PLUS (hereinafter XHD+) or XHD2 backplane module assemblies (hereinafter BMAs) with extra ground BMAs. XCede, High speed backplane connectors, 6-Pair, 8 Position, Left Polarizing. XCede ® HD backplane connector achieves high performance (up to 20 Gb/s) in a Hard Metric form factor. Buy XCede HD Plus Series Backplane Connectors. XCede HD Plus, Backplane Connectors, Right Angle Receptacle Without Extra Ground, 3-pair, 4-column, 100ohms. XCede, High speed backplane connectors, 2-Pair, 6 Position, Open. XCede Plus leverages the same core technologies as XCede with improved signal integrity performance while maintaining backwards mating interface compatibility with existing XCede products. Connector Type Card Edge Connector; PC Card Connector Voltage Rating 300 voltsXCede HD Plus, Backplane Connectors, Vertical Header, 6-pair, 8-column, Right End Wall, With Extra Ground. High-speed, high-density backplane systems include ExaMAX® and XCede® HD in a variety of pair and column counts. drw amphenol xcede hd plus configurator ver210701 size d scale 1/1 sheet 1 of 2XCede ® HD and XCede ® HD Plus, this connector provides . 0 TOOLING 3. We’ll connect you with a product specialist who can help you find the answers to your specific application questions. The XCede ® HD product line offers the highest density in the industry, is tooled in muliple configuratons/pair types, and is ideal for storage or space limited. 2 GR-1217-CORE-Generic Requirements for. for connector repairability, use keepout zone. refer to tb-2308 for xcede hd plus product specifications. conductors of multipolar cables to prevent contact with the connector contacts The COB system satisfies the most various installation needs thanks to the interchangeability of. Derivatives including coplanar and orthogonal configurations. XCede® HD 1. Multiple signal/ground pin staging options. Order today, ships today. TARGET MARKETS. XCede HD, Backplane Connectors, Right Angle Header LC, 4-pair, 6-column, 85ohms. 2. 53) max. 9. VIEW PRODUCT XCede ® HD Plus XCede ® HD backplane connector achieves high performance (up to 20 Gb/s) in a Hard Metric form factor. 2188-928-4000-A7H. 0 Header BarKlip BK100 IO Cable Connector 1 VCC DR SMT 10089480-100X (LF) BarKlip BK100 IO Cable Connector 2 PwrBlade+ Series ACP Plug and Receptacles SM-BTE80 D, followed by A thru E Bergstak eHPCE CRPS connector 10147875 VCC DR TMT ExaMax® RAH Connector 10089514-100X(LF) Crimp to wire pins Daisy chain. Newark offers fast quotes, same day shipping, fast delivery, wide inventory, datasheets & technical support. 73. XCEDE HD PLUS, 4-PAIR, 8 COLUMN, Manufacturer Standard Lead Time. The connectors are intermatable, electrically and mechanically interchangeable. 1. For assistance with 3D Models, please contact e3DModels@Samtec. XCede HD Plus, Backplane Connectors, Vertical Header, 6-pair, 8-column, Left Polarized Guide, With Extra Ground. XCede HD, Backplane Connectors, Right Angle Header LC, 4-pair, 10-column, 85ohms. Low Halogen: No. For assistance with 3D Models, please contact e3DModels@Samtec. Connector Type: Board to Board Connector; PC Card Connector; Geometry: Right Angle; Termination: Press-Fit; Home. Offering a linear density of up to 84 differential pairs per inch (33 differential pairs per centimeter), the XCede ® HD Plus connector meets the high density needs of today's challenging architectures. , Amphenol is one of the leading manufacturers of Backplane connectors. hpts-4-s-d-vt - XCede® HD Power Module. xcede hd2 daughtercard assembly 4 pair connector, leadfree part no. TB-2344 XCede HD2 Connector Design Guidelines . developers with a readily available robust solution for tighter card pitches and chassis designs where space requirements and density are critical. challenging architectures. Contact us today for more details of XCede, part number 940-600B-40H 940-600B-40H | XCede Plus | AmphenolAmphenol is one of the leading manufacturers of high speed backplane Connectors. Products & Services. XCede, High speed backplane connectors, 4-Pair, power, 1 up. View Substitutes & Alternatives along with datasheets, stock, pricing and search for other Backplane Connectors products. Figure 7: XCede® HD and XCede® HD Plus 17. XCede, High speed backplane connectors, 6-Pair, 8 Position, Left wall. drw amphenol xcede hd plus configurator ver210701 size d scale 1/1 sheet 1 of 24. XCede HD, Backplane Connectors, Vertical Header, 4-pair, 4-column, Right Polarized Guide, Thick Sidewall. ExaMAX® enables up to 56 Gbps performance and allows designers the option to optimize density or minimize board layer count. nominal seated dimension. performance (up to 28+ Gb/s) in a Hard Metric form factor. Amphenol Communications Solutions; Done. These modules consist of a 12. XCede® HD backplane connector achieves high performance (up to 20 Gb/s) in a Hard Metric form factor.