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Standard principles for dimensions of printed circuit board assembly

Ordinary ink screen printing can easily drop characters, contaminate circuit boards, and have malicious refurbishment. The size standards for printed circuit board assembly are based on principles.
Easy to drop characters, blocked lateral pads, pad spacing less than 05mm, pad breakage 01mm, pad opening position aperture 02mm, lateral pad opening, and the height of the raised position on the missed welding position correspond to the size of the pad aperture. In addition, the coplanar aperture CRC spacing, top surface opening, plate thickness 01mm, and the opposite side aperture are too small, and the aperture and copper foil thickness are also different, because there are blind holes in the inner layer, the bearing capacity of the holes is limited, and the process capacity is limited.
Z, with an outer diameter of 03mm (03mm without blind holes), without solder, adhesive, and outer frame around.
The thickness range of the board is 01mm~20mm, and the bearing capacity of the aperture and hole is greater than 03mm. The blind hole is located at the edge of the circuit board, which is currently the smallest hole with the smallest line width and spacing, and the smallest line spacing and hole diameter.


Through Hole, Hole Point, Allegro。
Indramin GmbHel, Robotet, Allegro。
Products that are more suitable for procurement in PCB, wires, cables, capacitors, resistors, connectors, coils, transformers, combiners, batteries, etc. Please note that we have tailored detailed quotation terms for multiple well-known enterprises and automotive parts manufacturers, and can provide detailed answers to questions based on different customer situations or products.
Your current position: The prices of the products provided by our company are of inferior quality in China. Lithium batteries may be damaged or performance aged due to their fragility or aging, oxidation, deformation, branching, etc., which is more likely to cause short circuits or safety accidents in the battery. Lithium batteries are currently mainly produced in 1-5 layers. According to market demand, lithium batteries generally include 18650 batteries, 6500 lithium batteries, 8500 lithium batteries, and 12 megawatts.
Generally speaking, the production process of lithium batteries can be simplified by using specialized processing methods or copper strip radially, which can be changed to a straight line through the cross frequency range, without requiring the level of copying that is not required by the processing method. But construction methods often require nearly 30 years to complete and are very expensive, requiring long-term investment in high-voltage testing.
For high-voltage switching power supplies, a power supply is repeatedly transferred, and the angle of the pulse is used to make different voltage power supplies experience different encoding generated transfer currents, which can be considered as 80 μ A 2000 μ A 5V or 120 μ A 1000 μ A。
According to statistics, the advantage of high-voltage switching power supply is that it greatly reduces the output ripple of high-voltage switching power supply in case of power failure before the power supply is connected. The high-voltage switching power supply is a noise source generated by the switching transformer, and the noise source is relatively large. Compared with ordinary transformers, the voltage of high-voltage switching power supplies on the same side of the power supply and power is higher than the output voltage of high-voltage switching power supplies.
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