OSA cage with reinforced connection to PCB

摘要

Direct pin attachment is the most compact method to connect the OSA and the PCBA, due to better performance in general and allows maximum PCBA space for more functionality. However, direct pin attachment can result in concentrated stress in the OSA-PCBA joint area, which can affect the reliability and yield of the module. To overcome the problem, an integrated transceiver cage and housing is provided including a direct pin attachment with reinforcing tabs, which are fixed to the PCBA prior to the pins to transfer any stress between the OSA and PCBA, thereby reducing the amount of stress applied to the pins.

主权项

1. A cage for at least one optical subassembly, the cage comprising:
a housing comprising a cover and first and second side walls for covering a first optical subassembly (OSA); first and second tabs extending from the first and second side walls, respectively, for receiving an edge of a printed circuit board assembly (PCBA), which is electrically coupled to the first OSA; and spring clips extending from the housing for holding the first OSA in the housing, wherein the first side wall is longer than the second side wall to accommodate a length of the first OSA that is longer than a second OSA.