Everyone knows that the use of plates is indispensable in the production of pcb circuit boards. The same is true for air purifier control circuit boards, but the PCB board boards have various specifications and different functions. In the PCB board production process, it is necessary to select according to the actual use. The right plate can be used to maximize its advantages without wasting resources and achieving the best results at the lowest cost. So what are the specifications of the air purifier control circuit pcb circuit board?
First, the PCB board board specifications can be divided into: 94HB, 94VO, 22F, CEM-1, CEM-3, FR-4 according to the grade level:
1, 94HB: ordinary cardboard, not fireproof (the lowest material, die punching, can not be used as power board)
2, 94V0: flame retardant cardboard (die punching)
3, 22F: single-sided semi-glass fiber board (die punching)
4, CEM-1: single-sided fiberglass board (must be computer drilled, can not die)
5, CEM-3: double-sided semi-glass fiberboard (except for double-sided cardboard, which belongs to the lowest end of double-panel material, simple double-panel can use this material, which is 5~10 yuan/m2 cheaper than FR-4)
6, FR-4: double-sided fiberglass board.
Second, usually according to the different materials of the board, can be divided into: paper base, fiberglass cloth base, composite base (CEM series), multi-layered board base and special material base (ceramic, metal core base).