Updated on 19 October, 2021
A test pin is a device used in electronics testing to connect a device to an electric component under test to determine interaction. Test pins range from simple, low-cost, solid-state probes to more expensive, sensitive, complex, and fragile probes. Some test tools are plug & play devices that require no special software for installation and use, others require special wiring connections or need a special power supply. Most probes consist of a metal or plastic sleeve having an inside surface, a series of conductive pads, and a thin conductive line. These lines allow current to flow through the device and the flow of potential difference across the pads determines resistance to flow.
Test Pins offer manufacturers several options when designing a test piece. Connectivity options include single-sided, multilayer or double-sided plugs that provide higher connectivity compared to plugs with one or two holes. Some multi-site test equipment has pre-installed test pins that simplify installation. When using pre-installed or pre-built test pins, customers can choose from different sizes, thicknesses, and wire types.
Test Pins are useful in high-quality scanning. The high-end scanners for automotive, aircraft, marine and other manufacturing applications require both reliability and test quality to ensure comprehensive results. To assure reliability, manufacturers install rugged test pins that have been designed to handle the stresses associated with continuous scanning and provide years of reliable service. Customers should consider the manufacturer's recommendations before choosing the appropriate type of Scan pin for their application.
There are several types of high current sensitive electrolytic transitors (HET) available in the market. Some popular brands include Vishay, Nokia, Samsung, MSA/HIPS and GE. High-frequency conductors like HETs can produce audible distortion when the currents reach extreme levels. Customers should select compatible high current sensitive electrolytic transitors for proper operation. Some types of HETs include Fastened Loop Devices (FLD), Shielded Wire Pins (SWPs), and Bare Board Connectors.
There are various types of flat bed scanners available in the market, including pin scanner, paper wheel, digital camera pin-scanners and flat bed pin-scanners. The most popular brand in the market is the Penta System Pogo Pins. Flat bed scanners usually have a small footprint and are suitable for desktop use. This makes it easy to place them on desks without bothering about how the scanner is going to fit in the space.
Customers should ensure that they purchase genuine GEM plating parts. Customers should ensure that they do not confuse standard GEM parts with flying probe or clamshell IIC devices. Flying probe and clamshell IIC devices are two different devices that are designed to test and diagnose electric circuits. Customers should avoid using flying probe or clamshell IIC device for testing purposes.
To add more convenience to the process, manufacturers include an array of test points in all their GEM plated products. Test points help customers to conveniently check the electrical connections between the test points and various components. Test points, especially GEM pins, help to make the process of purchasing in-circuit testing parts easier.
Test Pins are sold as fully sealed magnetic assemblies with pre-drilled holes for mounting the connections between the pins. Customers should ensure that they buy genuine GEM plated test points with pre-drilled holes. Customers should ensure that they get a clear view of the circuit to easily identify the wiring. Test points are usually mounted using pin connectors. This helps to make it easy for the customer to connect the assembly to the appropriate circuit.
Customers should ensure that they buy only high quality GEM pins. The high quality pins will have a larger footprint and they will be made from high quality metal alloys. Customers should ensure that they purchase only 100% GEM-quality pins for reliable and safe pin connection. Customers should ensure that they look through the pin description and select the pins that match their exact requirement. The size of the scan chain determines the dimensions of the connector and the pins can be fitted onto the scan chains if they are correctly sized.
Customers should look for the data sheet for the connector before they place an order for the GEM-level Test Pins connector. This data sheet is provided with the manufacturer's manual and customers should verify that they are referring to the correct page before they place an order. GEM-level Test Pins connector works with several different type of equipment including CCTV and radio security systems. The data sheet gives the compatibility details and customers should ensure that they buy the correct equipment so that they can carry out the required compatibility checks.
Customers should ensure that they use quality 100% silicone lubrication for GEM pin connections. Some manufacturers use an o-ring on the spring loaded connectors for optimum performance. Customers should ensure that they do not remove the o-ring until the pins are completely seated in the holes in the connector type they are using. If they do remove the o-ring before the pins are properly seated, they will risk the device getting damaged.