Digi-Key零件搜索引擎是业界寻找和采购零件的最佳工具之一。
但是，有时候获得的搜索结果低于预期。
这可能是因为使用过于具体的搜索字符串，可能会拼写错误的内容，或者搜索字符串中存在缺少或额外的字符以列举一些可能性。
对于熟悉Digi-Key零件搜索引擎的人，您已经知道如果输入错误的零件号或拼错了某些东西，那将是非常无情的。
通常情况下，您会被带到一个页面，告诉您没有结果。
在这种情况下，您必须使用正确的搜索字符串重复搜索。
但是，有时你无法确定是否有任何错误。
如果是这种情况，最好的办法是扩大搜索范围。
如果使用部件号，请开始删除末尾的字符，直到获得包含您可以使用的多个部件的结果。
如果使用搜索字词，请尝试使用较少的字词。
Digi-Key部分搜索引擎提供的有助于将结果缩小到可管理数量的一件事是使用相关变量过滤结果的能力。
例如，当搜索“mlcc”（多层陶瓷电容器）时，结果超过173,000。
点击初始搜索结果页面中的“Ceramic Capacitors”链接，我们将看到一个包含20个不同过滤器的页面，以帮助缩小选择范围。
陶瓷电容器的Digi-Key搜索页面
请注意，一次只应用一个过滤器将获得最佳效果。
如果同时使用多个过滤器，则过滤器结果可能返回很少或没有匹配。
要完成搜索，首先过滤最重要的值（在这种情况下可能是“Capacitance”），然后继续按下一个最重要的值进行过滤，以获得最佳结果。
只需按住键盘上的“Ctrl”键，您就可以在一个字段中选择多个参数值;
如果选择一个范围，您可以选择第一个值，滚动到第二个值，然后在按住“Shift”键的同时单击它。
或者，您可以通过单击并按住第一个值并将鼠标在列表中拖动到您要查找的范围的结束值来选择范围。
Digi-Key还提供了在部件搜索字符串中使用布尔逻辑的功能，并且支持AND，OR和NOT。
要使用AND语句，只需在参数之间放置一个空格即可。
或者，使用“.and。”将执行相同的操作，但需要更多输入。
对于OR语句，请在要使用的搜索参数之间使用“|”（标准键盘上的Shift ）或“.or。”。
最后，要使用NOT操作数，请在参数之间加上“〜”或“.not。”。
通常，一般搜索零件不需要布尔语句。
但是，在进行专门搜索时它可能会派上用场。
在查找零件时可能有用的最后一个提示是搜索精确的字符串。
这可以通过简单地在您正在寻找的确切短语周围加上引号来完成，这在大多数搜索引擎中很常见。
有关Digi-Key零件搜索引擎的详细信息，请参阅Digi-Key文章库中的文章“如何更有效地使用Digi-Key的零件搜索”。
以上来自于谷歌翻译
以下为原文
The Digi-Key
part search engine is one of the industry’s best tools to find and procure parts. However, there are
times when the search results obtained are less than what was expected. This could be the result of using a search string that was too specific, there could be something misspelled, or there is a missing or extra character in the search string to name a few possibilities.
For those of you familiar with the Digi-Key part search engine, you already know that it is very unforgiving if you enter a part number wrong or misspell something. More often than not, you are taken to a page that tells you there are no results. In this case, you have to repeat the search with the proper search string. However, sometimes you can’t determine that anything is wrong. If this is the case, the best thing to do is broaden your search. If using a part number, start removing the characters at the end until you get a result with a number of parts that you may be able to use. If using search terms, try using fewer terms.
One thing the Digi-Key part search engine provides to help narrow down the results to a manageable number is the capability of filtering the results with the pertinent variables. For instance, when searching for “mlcc” (multi-layer ceramic capacitors), there are over 173,000 results. Clicking into the “
Ceramic Capacitors” link from the initial search results page brings us to a page with twenty different filters to help narrow down the choices.
Digi-Key Search Page for Ceramic Capacitors
Please note that applying only one filter at a time will get the best results. If more than one filter is used simultaneously, the filter results could return few or no matches. To complete your search, start by filtering for the most important value first (probably “Capacitance” in this case), and continue filtering by the next most important values one at a time to get the best results.
You can select more than one parameter value in a field by simply holding down the “Ctrl” key on your keyboard while clicking; if selecting a range, you can select the first value, scroll to the second value and click it while holding down the “Shift” key. Alternatively, you can select a range by clicking and holding on the first value and dragging your mouse through the list to the end value of the range you’re looking for.
Digi-Key also provides the capability to use Boolean logic in the part search string with AND, OR, and NOT being supported. To use an AND statement, simply put a space between the parameters. Alternatively, using “.and.” will do the same thing, but requires more typing. For an OR statement, use the “|” (Shift on a standard keyboard) or “.or.” between the search parameters you want to OR. Finally, to use the NOT operand, put a “~” or “.not.” between the parameters.
Generally, Boolean statements are not required for general searching for parts. However, it could come in handy when doing specialized searches.
One final tip that could be useful when looking for parts is to search for an exact string. This can be done by simply putting quotes around the exact phrase you are looking for, something common in most search engines.
For a more detailed look at the ins and outs of the Digi-Key parts search engine, please read the article,
How to Use Digi-Key’s Part Search More Effectively, located in the Digi-Key Article Library.
