What are the application areas of LED PCB?
Consumer Lighting, Consumer Electronics, Telecommunications, Transportation, Medical.
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
What are the properties of halogen-free PCB?
Insulation: Since the halogen is replaced by P or N, the polarity of the epoxy molecular bonds is reduced, which improves the insulation resistance and breakdown voltage.Water absorption: Due to the relatively low electrons of N and P in the nitrogen-phos
What is a halogen-free PCB?
According to JPCA (Japan Circuit Association)-ES-01-2003 standard: CCL with chlorine (Cl) and bromine (Br) content less than 0.09% Wt (weight ratio), respectively, is defined as halogen-free CCL (while CI+Br Total ≤0.15% [1500PPM]). Halogen-free PCBs are
Why is PCB impedance important?
Impedance affects how signals travel through the board, how power is transferred between components, and how signals penetrate into unwanted areas of the PCB.
What is an Impedance Control PCB?
What is Controlled Impedance? Controlled impedance is the characteristic impedance of the transmission line formed by the PCB traces and their associated reference planes.
What are the benefits of using PCB gold fingers?
Excellent electrical conductivity due to direct board connection and more gold thickness, strong wear resistance allows the PCB to be plugged and unplugged thousands of times, and the PCB pads use a hard gold plating process with good oxidation resistance
What is the appearance inspection standard of PCB gold finger?
Raised corners, nicks, scratches, sink (spots) and tin stains, oxidation, exposed copper or exposed nickel, spot copper shavings, test pin spots.
What is an amplifier PCB?
Amplifier modules, also known as amplifier boards, are PCB (printed circuit board) modules that have audio amplifier chips.
What are the materials suitable for high voltage PCB?
Some of the substrate materials used in high voltage PCBs include: BT epoxy, phenolic cured rigid laminate, high voltage Teflon (HVPF).
What are the main things needed when routing a high voltage PCB?
Maintain clearance between high voltage drop traces. Avoid any sharp turns and edges as they can act as areas for concentrated electric fields. Avoid running very high voltage traces on the inner layers of the board.
What PCB materials are needed for RF?
The high-frequency material most familiar to users of PCB laminates is probably polytetrafluoroethylene (PTFE), a synthetic thermoplastic fluoropolymer with excellent dielectric properties at microwave frequencies.
Why use FR4 in PCB?
FR4 is the most used material in PCB construction. Circuit boards made of FR4 are strong, waterproof, and provide good insulation between copper layers, minimizing interference and supporting good signal integrity.
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