Product name：Cavity board
Size: 5*7/7*9/9*15/10*15/10*22/12*18/18*30CM
Product Specifications：One side green oil
Hole pitch size：2.54mm
Reinforcement material: glass fiber cloth-based copper cladding
Insulation resin: epoxy resin
Hole diameter: 1.0mm
Thickness: 1.6mm (positive and negative tolerance: 0.05-0.1)
Precautions for use:
1. The layout of components should be reasonable, you can simulate the alignment on paper beforehand. Signals with higher current should consider the effects of contact resistance, ground loop, wire capacity, etc. This point is easily overlooked.
2. Use different colors of wire to indicate different signals (it is better to use one color for the same signal).
3. According to the principle of the circuit, the distribution of the production and debugging. Do a good part of the test, debugging, do not wait until all the circuits are completed before testing and debugging, otherwise it is not conducive to debugging and troubleshooting.
4. Alignment should be regular, while welding and marking on the schematic diagram. Pay attention to the welding process, especially to be soldered pins of the tin treatment.
5.
b. If the component pins are oxidized, scrape off the oxidized layer with a razor blade and other tools, and then do the tin treatment to be welded.
c. After the wire is stripped, the length of the insulation layer stripped to control, so as not to weld and other wires easily short-circuited.
d. Both ends of the wire need to be done after tinning, to be welded.
e. Welding process in accordance with the requirements of the five-step welding method.
Shipping:
We Ship to Worldwide.
Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that's why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed.
We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address.
Package to USA will Shipping by E-Package with Tracking Number(7-15 Days to Delivered). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15-35 Days to Delivered)
Items are shipped via China Post Air Mail.
Guarantee:
Good Good quality. Buy with confidence!
If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it.
Not accept returning of electronic components.
Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer.
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