While many designers anticipate IPC-7351C, the official 1-13 Land Pattern Committee faced significant delays. In fact, many of the planned updates for IPC-7351C were eventually moved into a new publication, IPC-7352, which was released in February 2023. IPC-7351B (2010): Remained the active standard for years.
: Introduced "Pin 1 Lower Left" as a zero orientation standard to align with the IEC 61188-7 standard. PCB Libraries Status and the Transition to IPC-7352 ipc-7351c pdf
The IPC-7351C PDF is a widely used standard in the electronics industry, specifically in the realm of surface mount technology (SMT) and printed circuit board (PCB) design. Published by the Institute for Printed Circuits (IPC), a leading trade association in the electronics industry, this document provides guidelines and recommendations for the design and manufacturing of surface mount devices (SMDs) and their related PCB footprints. While many designers anticipate IPC-7351C, the official 1-13
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, which is the current successor to the IPC-7351 series. While IPC-7351C was a planned update, the standard was transitioned to IPC-7352 to better reflect modern land pattern geometries and assembly requirements. Matric Group Key Reference Standards , which is the current successor to the IPC-7351 series