How to choose the probe of the test fixture The choice of the probe for the test fixture has the greatest relationship to the cost of the fixture. At present, the test probe is divided into domestic, Taiwan, Hong Kong and imported.
Imported products are generally from Germany, the United States, and Japan. The brands include INGUN, TCI, NEC, Huarong, Zhongyan, and Asia Exploration. Welcome to the company's official website http://
The quality of the test probe is mainly reflected in the material diameter, plating, spring, casing diameter accuracy and manufacturing process. Tooling fixtures currently include domestic products, many of which are made of imported materials. Therefore, unless the material is cut, the probe material is not very problematic. The diameter accuracy of the needle and casing is similar to that of Taiwan and Hong Kong. The import is slightly better but generally affects. Not much, the quality of springs and coatings is much better than that of domestic products. Taiwan's Hong Kong products are slightly better than domestic ones. The main reason is the difference in process level. The domestically produced probe coatings are resistant to wear and the coatings are easy to fall off.
If the test fixture is used and the number of tests is more than 150,000 times, it is more suitable to use imported products, but the imported probes are more expensive. At present, the production level and technology in the country are gradually improved, and in the current price war, many agents use domestic needles to impersonate imported or Taiwan-made probes for sale.
If the test requirements and the number of tests are not high, it is recommended to use a domestic probe. The quality of the probe is mainly related to the number of tests in the test fixture making and the good contact.
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