Precautions for the use of some ic card connectors

                       Precautions for the use of some ic card connectors

   When a customer is soldering the DIP type ic card connector, the soldering time is too long or the soldering is performed for many times in a row, which 

causes the terminal to sink, which in turn makes the card unable to read the card. Because the solder legs and terminals are a whole, they are all made of

phosphor bronze. As we all know, all metals have very good thermal conductivity. Long-term welding or multiple consecutive welding will lead to high 

temperature of the welding leg, which in turn makes the plastic around the welding leg high temperature. Usually DIP type ic card connectors are made 

of materials that are not resistant to high temperature, so the plastic will be deformed, causing the terminals to sink, and the card cannot be read. 

Solution: Control the welding time or wait for the temperature to cool down before repairing welding.
   In order to test the card insertion more efficiently, some customers have subtracted the two corners of the standard IC card. Doing so can indeed facilitate

the tester to insert the card, thereby improving the detection efficiency. But it is not advisable for some ic card connectors of copper sheet switches. 

Because if the subtracted angle is too large, the movable piece of the copper switch will not be supported when the card is inserted, and the switch will lose

its meaning. Similarly, this non-standard ic card may also overturn the switch of the ic card connector to deform the movable copper sheet, so that the 

normally closed ic card connector is normally open or the original normally open becomes normally closed. Solution: Do not use a non-standard IC card to 

test the product or to eliminate static electricity.