PCN and EOL Management: Notice to Last-Time Buy
A change notice is a deadline. How to classify what it touches, decide on re-qualification, size the last-time buy, and keep a record that survives the...
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Shenzhen Sunway Communication Co., Ltd.
Shenzhen Sunway Communication Co., Ltd., established on April 27, 2006, is one of the first national high-tech enterprises. It was listed on the ChiNext board of the Shenzhen Stock Exchange on November 5, 2010 (stock code: 300136.SZ). As a globally leading provider of RF device R&D, design and manufacturing solutions, the company supplies complete standard passive component solutions including resistors, capacitors and inductors. Its products are used in consumer electronics (smartphones, PCs, wearables), automotive, IoT/smart home, satellite communications, data centers, green energy storage, humanoid robots and low-altitude flight, and belong to the new-generation information industry technology supported and encouraged by the state.
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Recent Articles
Market signals, technical notes, and practical sourcing guidance for semiconductor procurement.
74HC595 Segment Drive: Current Limits and Heat
A 74HC595 is a logic driver, not an LED driver: 35 mA is a damage threshold, 6 mA is the design point, and eight segments add...
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How to Prepare a BOM for Electronic Component Sourcing: 12 Essential RFQ Fields
An accurate BOM is the starting point for a reliable electronic component quotation. Learn how EMS, PCBA, and OEM procurement teams can prepare better RFQs with...
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USB-C and SuperSpeed: A Practical Introduction
USB-C is a connector, not a speed. CC roles, PD power, 85 ohm SuperSpeed pairs and the five mistakes that stop a port from working.
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STM32F103RBT6 to RET6: Flash Density Migration Guide
Check pinout, flash page size and SRAM before moving a design from STM32F103RBT6 to the higher-density RCT6 or RET6 in the same LQFP64 footprint.
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Buck Converter Layout: Hot Loop, Switch Node, Copper
The schematic sets efficiency; the layout sets temperature. Hot loop, input capacitor ripple, switch-node ringing, thermal vias, and the loss budget that decides the copper.
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MOQ and Partial Reels: What the Price Break Costs
A partial reel is cheaper per piece and riskier per failure. Tape anatomy, count tolerance, moisture history, and the five clauses that prevent most surprises.
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LM7805 Guide: Pinout, Heat Limits and Buck Alternatives
Work out whether a 7805 can power your board: check its pins, input headroom, realistic heat budget and the changes required for a buck replacement.
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