A widely used application of this feature and diodes in general is in the conversion of an alternating voltage (AC) into a continuous voltage (DC). ... Power diodes provide uncontrolled rectification of power and are used in applications such as battery charging and DC power supplies as well as AC rectifiers and inverters. Power Diodes are available at our website. We offers quality supplier,quality products,product documents.
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1. See if the suppliers are verified and how long they have been in hqew.net, we will check if the supplier and their products are high-quality again every year. And we will give them a note in their shop. Don’t hesitate to consult us if you have any questions.
2. Look at the print. Most of the chips are printed by laser or printed by special chip printer. The handwriting is clear, not obscure and hard to erase.
3. Look at the pins. All bright and new tin pins must be refurbished. Most of the pins of IC should be the silver powder feet, which is dark but uniform.
4. See if there is any trace on the surface of the chip.
5. Measure the thickness of the device and look at the edge of the device.
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