标准摘要
[中文适用范围]： IEC 61837的本部分规定了具有混合外壳轮廓的表面压电器件的外形图和端子引线连接，并且基于标准化表面贴装器件外形图布局规则的IEC 61240:2012。 [外文原描述]： IEC 61837-4:2015 specifies the outline drawings and terminal lead connections for surface piezoelectric devices with hybrid enclosure outlines and is based on IEC 61240:2012 which standardized layout rules of outline drawings of surface-mounted device. This edition includes the following significant technical changes with respect to the previous edition: - Outline drawing is defined as one set of drawings consisting of four views, which are the view from above, the front view, the view from the right, and the view from below, instead of one set consisting of three views as provided in the previous edition. - The configurations of the enclosures were revised as shown in Table 1. This publication is to be read in conjunction with IEC 61240:2012 .
英文名称Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 4: Hybrid enclosure outlines