What is the price difference between poor quality crystals and high-quality crystals? Purchasing, design engineers or solution companies of electronic manufacturers must understand these issues and save the most critical cost for products.

    What are the key costs? The quality of products is not good, the manpower, material and financial resources of returns/exchanges/factories have to be re-expended, customer resources are regressed, and the sales of electronic products are difficult.

    First of all, let's understand what is a poor quality crystal oscillator, and the main characteristics of a poor quality crystal oscillator:

    1. Neat appearance:

    From the cap to the base and the leads, it is bright and clean, the nickel-plated surface is free of obvious fingerprints and attached debris, and the press-sealing joint between the cap and the base is neat and flawless. And many bad goods such as electronic city can be observed with the naked eye, the compression seal has different degrees of distortion and deformation, dull, even slightly yellowing and oxidation phenomenon is the second-class goods and ballast goods.

    2. Typing logo:

    The crystal oscillator produced by the original factory has laser-printed handwriting on the top of the shell. It has been designed by art, and the size and proportion are suitable, clearly visible, and uniform. There are obvious manufacturers' logos such as "FL4.000" in Zhongke Jing Factory's "FL4.000". FL" is to facilitate customer traceability and distinction after quality problems occur.

However, companies specializing in roasted seeds and nuts and receiving goods like to use neutral words very much. They often send customers a batch of goods with several fonts and similar words to fish in troubled waters, so that customers cannot trace them back. Many crystal oscillators without factory logos such as "FL" are shipped over the counter, but the single-line typing is very light, such as: 4.000 and FL4.000 formats; this is because the shell is made of relatively thin and poor metal It is easy to penetrate the shell of the crystal oscillator, resulting in gas leakage of the crystal oscillator and unstable electrical performance.

    3. Formal packaging:

    The crystal oscillators shipped from the original factory are uniformly packaged, and the outer box is clean. The outer box has a product label with the company's trademark or company name. The label contains the product name, specification, accuracy, resistance, quantity, QC, production date and other main crystal parameters. information to facilitate customer warehousing, production and verification.

    The difference between high-quality crystal oscillators and poor-quality crystal oscillators lies in how high-quality crystal oscillator manufacturers manufacture crystal oscillators in accordance with international standard processes? Crystal rods need to purchase high-quality crystal rods.

    Wafer manufacturing process - X-ray machine angle - sticking plate - multi-knife cutting - rounding - grinding - sticking - grinding shape - round edge - frequency sorting - cleaning and corrosion - sorting; quartz crystal finished product manufacturing process - cleaning - Vacuum silver plating - shelf dispensing - tunnel baking glue - fine adjustment - sealing and welding - leak testing - aging (must be 48 hours) - finished product test - laser printing - drop test (reliability test) - scissors - braid - each factory Steps cannot be omitted or skipped, especially the aging time must be 48 hours to ensure the high stability of the crystal oscillator.

    Under normal circumstances, if the required crystal raw materials are in stock, the delivery time will be shorter than expected. If there are no semi-finished products or raw materials in stock and need to be re-manufactured, the delivery time is as follows: 3~4 weeks for crystal oscillators, 6~8 weeks for oscillators, 8~12 weeks for TCXO, 6~10 weeks for VCXO, and 8~12 weeks for VCTCXO. Jiake Electronics is a group company specializing in the production and sales of frequency control components such as quartz crystal oscillators, ceramic crystal oscillators and crystal oscillators. The company has international advanced production and testing equipment, ultra-purified production environment, high-quality workforce, all in accordance with international standards Process operations, through unremitting efforts in quality and service, have obtained ISO9001 quality and ISO14001 environmental system certification, from raw materials to packaging materials are lead-free design, passed the SGS environmental certification on RoHS regulations, at the same time, it also provides customers with The most professional and complete crystal solution.