标准摘要
[中文适用范围]： IEC 61837 的这一部分涉及标准外形和端子引线连接，因为它们适用于陶瓷外壳@中的频率控制和选择的表面安装设备 (SMD)，并且基于 IEC 61240。 [外文原描述]： IEC 61837-2:2011 deals with standard outlines and terminal lead connections as they apply to surface-mounted devices (SMD) for frequency control and selection in ceramic enclosures, and is based on IEC 61240. In this edition, types of enclosures are renamed to express their features in their names for better understanding. The relative comparison of new types with old ones is listed in Table 1. New names of enclosures express configuration type, terminal lead numbers, sizes and arrangement of terminal pads. The details of definition are shown in Clause 3: Configuration of enclosures, and Clause 4: Designation of types. Enclosures in this new edition are based on IEC 61240. In this standard, 27 enclosures are added to the first edition of IEC 61837-2. This publication is to be read in conjunction with IEC 61240:1994 .
英文名称Surface mounted piezoelectric devices for frequency control and selection - Standard outlines and terminal lead connections - Part 2: Ceramic enclosures