PCBA processing and production process often use two types of E-test fixture, one is pcb test fixture, another is the PCBA test fixture, there are often customers will be confused with such a species. Some customers do not know what these test racks are used for, the following to introduce the principles and uses of these 2 test fixture.
The principle of test fixture
PCB test fixture and PCBA test fixture are very simple, both are connected to the pads and test points on the PCB board through metal probes. In the case of PCB board energised, to obtain the test circuit voltage value and current value and other typical values and phenomena, through the parameters obtained to check whether the product is qualified.
Test fixture for PCBs
The test fixture for PCBs are customised according to customer requirements, depending on the size of the PCB to be produced and the position of the solder joints. It is mainly composed of an epoxy board, metal probes, wires and testing interfaces.
It is mainly used to test the circuit board’s line through and through, never to ensure that the product does not appear bad phenomenon, short circuit break and open circuit, etc..
PCBA board test fixture
The PCBA board test fixture is dedicated to the board, according to the production of pcb board size test point location and a variety of external instruments, interfaces and accessories to the circuit board to form. It is commonly used in acrylic, bakelite and other materials to produce the main frame, equipped with some touch with the thimble and wire link, on the shape of a simple test frame.
PCBA test fixture is SMT chip processing production is an essential inspection tool, it can mainly be produced to test the board, through the detection of the signal picture and sound temperature, etc. to determine whether the board is good.
Quick facts about NeoDen
① Established in 2010, 200+ employees, 8000+ Sq.m. factory
② NeoDen products: Smart series PNP machine, NeoDen K1830, NeoDen4, NeoDen3V, NeoDen7, NeoDen6, TM220A, TM240A, TM245P, reflow oven IN6, IN12, Solder paste printer FP2636, PM3040
③ Successful 10000+ customers across the globe
④ 30+ Global Agents covered in Asia, Europe, America, Oceania and Africa
⑤ R&D Center: 3 R&D departments with 25+ professional R&D engineers
⑥ Listed with CE and got 50+ patents
⑦ 30+ quality control and technical support engineers, 15+ senior international sales, timely customer responding within 8 hours, professional solutions providing within 24 hours
Post time: Jun-27-2023