https://community.element14.com/products/manufacturers/hirose/w/documents/2971/the-bm28-series-delivers-power-and-signal-for-applications-requiring-usb-3-1-connectivityen-USTelligent Community 12https://community.element14.com/products/manufacturers/hirose/w/documents/2971/the-bm28-series-delivers-power-and-signal-for-applications-requiring-usb-3-1-connectivityWed, 06 Oct 2021 21:19:56 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:399c4692-5560-46a7-9747-9ee17b51475dHirosesamhttps://community.element14.com/products/manufacturers/hirose/w/documents/2971/the-bm28-series-delivers-power-and-signal-for-applications-requiring-usb-3-1-connectivity#commentsCurrent Revision posted to Documents by Hirosesam on 10/6/2021 9:19:56 PM<br /> <p style="margin:0;text-align:left;"><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">HIROSE has introduced the BM28 series of connectors to provide a robust, high power and space-saving connectivitysolution for miniaturised applications requiring USB 3.1 connectivity.</span><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">The BM28 range of connectors consists of </span></p><p style="margin:0;text-align:left;"><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">headers and receptacles whi<span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;"><span><a href="https://community.element14.com/resized-image/__size/292x199/__key/communityserver-wikis-components-files/00-00-00-00-34/contentimage_5F00_84599.jpg"><img alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/00/34/contentimage_84599.jpg-292x199.jpg?sv=2016-05-31&amp;sr=b&amp;sig=j7MBCOoAHADxGs2AwJudRr2QPqHhxHEXacbEU6jN7kg%3D&amp;se=2026-09-21T23%3A59%3A59Z&amp;sp=r&amp;_=/k4+imdgKxwiF5Rn7KaBkg==" style="max-height: 199px;max-width: 292px;" /></a></span></span>ch provide a connection between a flat printed circuit (FPC) and a board. The connector features a hybrid design which includes signal contacts rated at 0.3A (for 40 positions and under) / 0.2A (over 40 positions) and power contacts rated at 5A. </span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">When mated, the BM28’s parallel stack height is only 0.6mm with a narrow depth of 1.7mm, making this one of the smallest<br />hybrid FPC- to-board connectors in the world.</span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Although the connector’s dimensions are compact, performance is not compromised, and the connectors are able to offer<br />highly reliable mechanical connection. This is due to the provision of unique 2-pointcontacts and a long effective mating length of 0.13mm (signal) or 0.10mm (power). </span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">The connector can support high-speed transmission up to 10Gbps and the pin assignment is compatible with the USB 3.1<br />second generation standard. </span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Guide ribs are incorporated into the housing body, providing for a wide self-alignment range of 0.3mm in the </span></p><p style="margin:0;"><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">X-direction and 0.3mm in the Y-direction, and permitting a smoother mating operation. The metal covering on the guide<br />ribs enhances the robustness and prevents damage from incorrect mating or any unintended unmating due to drop impact.</span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">The integral moulding has no gaps preventing solder wicking.</span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="color:windowtext;font-size:11pt;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;"><strong>Key Features</strong></span></p><p style="margin:0;padding:0px;">&nbsp;</p><ul style="list-style-type:disc;"><li><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Number of contacts: 10,16, 20, 24, 30, 34,40, 44, 58 signal / 2 power </span></li><li><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Contact p</span><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">itch: 0.35mm </span></li><li><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Current rating: 5A power / 0.3A signal (for 40 positions and under), 0.2A signal (over 40 positions)</span></li><li><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Stack height:0.6mm</span></li><li><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Voltage rating: 30V</span></li><li><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Mating cycles: 10</span></li><li><span style="color:windowtext;font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Halogen-free</span></li></ul><p style="margin:0;text-indent:-1cm;margin-left:1cm;"><span style="font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span lang="EN-US" style="font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;">Suitable</span><span style="font-family:&#39;Arial&#39;,&#39;sans-serif&#39;;"> applications are point-of-sale equipment, medical devices, wearabledevices, drones, small sensors, IOT modules and other small portable devices.</span></p> <div class="migration-injected-attachments"><div style="font-weight:bold;margin:15px 0 5px 0;">Attachments:</div><div></div><table style="border:0;"><tbody><tr><td width="160"><span class="_se_attachment" id="attid_https://www.element14.com/community/api/core/v3/attachments/239948"><a href="https://community.element14.com/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-34/BM28-series.pdf">community.element14.com/.../BM28-series.pdf</a></span></td><td><span style="font-size:80%;">BM28 series.pdf</span></td></tr></tbody></table></div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: hybrid_connector, board-to-board_connector, low-stack height connector, board_to_fpc</div>