(1) Operating temperature range. In order to carry out the design of capacitor heat or resistor power dissipation, it is necessary to determine the upper working temperature of the resistive component, x2 wholesale safety capacitors in order to determine its material and structure; for liquid impregnated media or electrolytic capacitors with liquid electrolyte, organic resin or lacquer layer protection of the resistor or capacitor, attention should also be paid to its properties at the limit of the working temperature, to consider the entire temperature range of the impregnated Liquid, electrolyte, protective layer materials on the performance of the components.
(2) the relative humidity of the working environment, according to which the external structure of the selected component form and external protection materials.
(3) The air pressure of the working environment. Mainly on the breakdown of components, discharge performance has an impact, such as high-voltage capacitors due to low air pressure to increase the amount of left edge, resistors due to low air pressure to increase the width of the groove, etc..
(4) the requirements of mechanical stress, according to which the selection of materials with appropriate strength, the outer layer of protection and lead-out methods. If there are no special requirements for environmental conditions, the general technical conditions will apply.