Why are contact tubes always spring-loaded?
Spring-loaded contacts (aka SLCs) are ideal for creating solderless interconnections between mating modules, such as a handheld instrument to docking station, instrument to recharger, stacking PCBs, etc. They’re forgiving to stack-up tolerances and uneven mating surfaces. 2.
What is spring contact?
Introduction. Spring contacts have multiple function for solving customer’s PCB problems. These contacts are also known as Antenna contacts (used in the smartphone), Grounding contacts, spring or shield finger.
Where are pogo pins used?
It usually consists of plunger, tube and spring. Pogo pin is generally applied in the precision connection inside the electronics products such as mobile phones, communication devices, automotive, medical devices, aerospace devices and so on.
How does a spring-loaded connector work?
A basic spring-loaded pin consists of 3 main parts: a plunger, barrel, and spring. When force is applied to the pin, the spring is compressed and the plunger moves inside the barrel. The shape of the barrel retains the plunger, stopping the spring from pushing it out when the pin is not locked in place.
Why do we use spring contacts?
Spring-loaded contacts have a much higher vibration tolerance. This is because they don’t need insertion when connecting between mating modules. They only need to make contact with a gold plated surface. The springs absorb the shock and vibration and adjust for any misalignment that occurs in the system.
What are spring fingers used for?
A spring finger is a single contact, surface mountable internal connector with multiple functions on a PCB. Spring fingers can be used for antenna feeds, low voltage electrical connections and grounding or shielding.
What is PCB contact?
Description: PCB Tail contacts are best for applications that have limited space and connectors that are attached to printed circuit boards.
Do pogo pins corrode?
A high quality pogo pin connector should therefore be coated well on the inside of the connector. Especially corrosion inside the connector can increase resistance and the functionality of the pin.
How reliable are pogo pins?
In conclusion, my data shows that individual pogo pins seem to have approximately 2.4% chance of not mating correctly with their test points. When they do contact correctly, they usually show a reasonably low resistance of approximately 100 mΩ between the pin and the test pad, with worst cases being less than 500 mΩ.
When should a spring connector be used?
You can use them to model rubber bumpers or springs that provide a compressive interface when sandwiched between two parts. You can use them to model cables or ropes that cannot take compressive loads but can significantly affect the overall stiffness under tension.
How do spring fingers work?
Scalable spring fingers, also known as shield fingers or universal ground contacts, feature a preload function that doubles the working area of a common spring finger and increases contact force by 0.2 N. The backward-bended tip prevents the finger from hooking by removing the sharp edge. …
What are the connections on a PCB called?
PCB Connectors can also be known as PCB Interconnects. Specific terms are also used for the two mating sides of the connection. Male PCB Connectors are often referred to as Pin Headers, as they are simply rows of pins. Female PCB Connectors can be called Sockets, Receptacles, or sometimes even Header Receptacles.
What kind of connectors are spring loaded?
Miniature Spring Loaded Contact Connectors Compact and lightweight CP007/16112016 The heart of the connector The contact design is based on a series of “Pogo pins”, short spring contacts with an integrated coil spring. This connection type is a surface-to-surface connection, maintained by the spring force.
How big is a spring loaded contact probe?
Contact, Connector, Test, PCB, Spring Loaded Probe, 1.91 mm, 90° Convex, 3 A, 20.57 mm, 1.5 oz You previously purchased this product. View in Order History More Pricing… This item has been restricted for purchase by your company’s administrator. Contact, Connector, Test, PCB, Test Point, 7.62 mm, Flat, 50 A, 44.45 mm, 16 oz
Who is the author of spring loaded contact connectors?
Title Spring_Contact_Connectors_PTM Author Wendy Jane Preston Keywords Harwin HotShoe Spring Contact Connectors Created Date 20170726105027Z
What can you do with spring loaded contacts?
These spring contacts, originally developed for the clamshell mobile phone, are ideally suited for all applications in the po rtable, mobile and wearable applications. Lightweight, compact and hard-wearing, they can be incorporated into devices for both data transmission and battery charging.