A connector, also known as a header or wafer, is a connector that sits on a printed circuit board and needs to be soldered to the circuit pins.
Common connector pin holders are: no cover base (for example: row needle structure), cover base (common wafer type), friction lock type.
The pin holder of the connector belongs to special plastic for high temperature environment, and needs to have high temperature resistance. For example, the needle holder used for surface mount welding shall be welded by reflow welding equipment, and the temperature shall reach about 265°; The other is that the pin type needs to be welded by wave soldering equipment, and the temperature resistance needs to reach about 230°. If the temperature of plastic can not reach the welding process will affect the normal use of structural deformation.
Connector pins use plastic raw materials: Nylon, polyester, Nylon, high temperature – PBT, polyester – PCT, PPS, LCP, and so on, different liquidity in the process of molding, plastic material flow length, shrinkage, water imbibition, linear expansion coefficient is different, in plastic mold development has a lot to do with the materials used is accurate calculation.
Post time: Dec-16-2021