Sort out "identify the authenticity of components" to share dry goods (glue tray color can be ignored, can not be used as a basis for discrimination).
1. Discs and Tapes:
(1) Plate, usually the original chip rubber plate material is more delicate and smooth, non-original rubber plate is rough; The original lettering process is mature, the font engraved on the surface of the disk can present the font line in the middle of the slightly concave seiko, not the original can not do;
(2) Label, label represents the original product certificate, the original chip label brand LOGO ink jet uniform, not the original vice versa; Original chip QC label printing highly clear, non-original fuzzy; The overlapped parts of the original serial numbers are staggered, and the non-original serial numbers are aligned;
(3) The belt, the original authentic belt pressure Angle is careful, the protective film edge locking fit the belt, the non-original protective film and the edge of the belt separate; Generally, the original authentic straps are made of recyclable plastic material, and there will be recycling marks on the back of the small square box interval or no interval, but no original;
Second, product appearance, enlarge to see details
(4) Screen printing, (key) the original authentic LOGO printing is correct and clear (half of the LOGO is composed of two same shape), smooth and uniform lines, clear edge without impurities, no change after wiping with the finger, not the original screen font line potholes like corrosion, after wiping with the finger tip or residue;
⑤ Positioning holes. IC that cannot identify the installation direction has positioning holes. There may be letters or no letters in the holes. The original authentic positioning hole has sharp edges, deep radians, clear letters engraved in the hole, and (key point) the size of each chip positioning hole is uniform; The curvature of the non-original positioning hole is shallow, the reflection is stronger than the original, the letters engraved in the hole are fuzzy, and the size of the positioning hole in the same inventory will be different;
TI/ Texas Instruments electronic components in circulation on the market at present, the difference between original and non-original products can be basically distinguishable from the previous points, among which non-original may be semi-finished products, or turn over new products, I believe it will not be your choice, so we need to observe and learn the method of discrimination more carefully, although the above mentioned can not copy each component accurately, It is to "fine work out of quality" principle for everyone to point out the important identification, "flexible use, draw inferior3" is the right principle.
The components will be sent to the original factory or professional formal institutions for testing, a test will know, but if it can be identified in a simple way, I believe that no one is willing to do so much trouble and trouble. In the future, Xichuang Hui will also sort out more dry goods on components to share, help customers to purchase the original IC, to avoid stepping on the pit.