Design Principle - Zhenghe Precision Electronics Co. Ltd

POGO PIN raw materials

●The Barrel& Plunger material is brass alloy, And we have different kinds of brass, such as C3604, C3601, HBI59, C6801 …

●Spring material is stainless steel (SUS304, SWP)

● The Plastic Housing material is PA46, PA9T, HTN, LCP (halogen-free material, fire rating
UL94V-0）

● The CAP material is PA46, PA9T, HTN, LCP (halogen-free material, fire rating UL94V-0)

● Solid Pin material is brass or stainless steel(316F, 316L, 904L, C-276)

Advantage

● Long life cycle: 10,000 times

● No mold opening, suitable for customization

● The elasticity can be accurately adjusted and adjusted

● Save space and give designers more flexible configuration structure

● Provide customers with multi-origin production mode: SMT automatic production, plug-in

Cut the hypotenuse

Needle shaft design

●Cut the hypotenuse In order to ensure that the needle shaft is in 100% contact with the needle tube when working, we cut the end of the needle shaft in contact with the spring into a bevel, This design concept can ensure a stable bottom impedance. Product advantages: The resistance is small and stable, which can ensure that the needle shaft and the tube wall are in close contact to reduce the probability of instantaneous power failure

Needle shaft design

Back drilling

●Back drilling This design is the best choice for a small size connector. The small size can meet the elasticity requirements of customers, because the spring length of this design can exceed the length of the needle tube. In some cases where space is limited, The needle shaft is hollowed out to get more spring assembly space, so stable spring force and relatively more compression stroke can be obtained for customers to choose. To 1. Easy turning and low cost 2. Can strive for space for spring placement 3. Shorten the height of the product 4. The phenomenon of no pin stuck in static stat

Needle shaft design

Cone bottom shape

●Cone bottom shape This design is the best choice for connectors that require high concentricity, because the spring of this design can be directly sleeved on the cone tail needle of the needle shaft. The needle shaft is subjected to vertical force, so the deflection of the shaft is relatively small. The bottom of the needle shaft is cone-shaped, and the cone tail is placed in the air in the spring to reduce the chance of needle shaft shaking 1. Easy turning 2. Low cost 3. Small deflection 4. Since the bottom cone end of the needle shaft is placed in the air inside the spring, it is in close contact with the top of the spring. Therefore, the shaking of the needle shaft is quite small