| 1：型号 |
| 2：后缀 |
| 3：包装 |
| 4：品牌 |
| 5：包装 |
- 原创内容，请勿转载。
很容易买错组件并赔钱。今天我们分享一些关于即使您是新手如何购买的提示。不要害怕买错材料。
1：型号
当我们购买电子元件时，我们都知道第一步是验证型号。组件模型中的每个字母都表示一个参数。这意味着
如果一个字母不正确，则可能是两个完全不同的组件，具有不同的参数。但是，当您收到型号时，您必须检查每个字母
确保准确性;这非常重要。例如，这个模型和这个模型虽然只差一个字母，但电压却完全不同。如果您不小心购买了
错误的，可能会导致损失。
2：后缀
正如我们之前提到的，模型的每个字母都应该清楚地检查。还有另一种情况很容易出错。即使我们清楚地检查模型时，我们得到
它，我们买了之后结果还是错了。为什么？
因为这个模型也有一个我没看的后缀，但是我不知道这个东西还有一个未知的后缀，那么我该如何识别呢？最简单的方法是询问供应商，
我们可以做的另一件事是检查 Google 看看是否有关于后缀的更完整的信息。
3：包装
Some purchasing friends will also make such mistakes. When the chip S M T factory is purchased, they find that the packaging is wrong, and the custom components cannot be returned
or exchanged, which will also lead to losses.
Some models are exactly the same but have different packages, which is difficult to identify. Especially for 74 series chips, there are such problems. For example, this one has several
packages of the same model, and there are two widths of the same package. So after checking the model suffix, check the package again, and you will be right 90% of the time.
4: Brand
The remaining 10% is to check the brand, although each chip model is a brand, but some models are the same model two brands,
It is also a loss caused by buying the wrong brand and finding out on the plane.
5: Packaging
The last part is packaging, which mainly includes tray packaging, pallet packaging, tube packaging, and tape packaging. This depends on whether there are any special requirements in
production. Therefore, the packaging forms that brands typically use are usually fixed, although there may still be individual cases that need confirmation, such as some models having both
pallet packaging and tape packaging.
Procurement is the position that deals with the most anomalies. If we can prevent some anomalies from happening, then our work will be much easier and more satisfactory. See you next
time.
