Pvc card chip means a little bit of something similar to the integrated circuit in the module, as well as modules in the most mission-critical content, usually more expensive.Modules include pvc card chips, COB, capacitors, vinyl, etc. Where COB are chip connected to the coils circuit boards, capacitors nicely with pvc card chip reader components affecting distance (comes with many chip capacitors), black plastic is fixed inside the COB chip adhesive substance.Modules with coil, is a smart cards can produce the effect of the most tangible thing.In General, modules were commissioned by the chip companies themselves or major manufacturers (usually are billions of manufacturers) processing, product quality is stable, the reading distance is also stable. Some slightly larger manufacturer of pvc card chip in order to save costs, direct buy chips and the production module. Cannot be compared because scale and chip manufacturers, made from some lost functions of the module, pvc card chip reject rate is also high. Such processing module of this module is a bit difference than directly from the chip company: cost is reduced a little, but not very large; quality no comparison; modules closer reading distance than the pvc card chip company, is not very stable.Because many people haven't seen the original PHILIPS MF1 chip, nor sends pvc card chip to Philips, nor Phillips dedicated detectors, usually by Visual sensing of subjective judgement. At present, popular MF1 cards on the market, if it is a domestic MF1 card is relatively easy to judge, because the sensing distance difference is large, basic comparisons. (Editor：admin) |
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