Common questions about film capacitors

Recently, I received some common questions about capacitors from Mr. Liu from a certain company. The following is the Q&A between me and the customer.You can also refer to it to increase your knowledge of capacitors.

Mr. Liu asked: Film capacitors are subjected to wave soldering and lead-free soldering at about 200 degrees? High temperatures can easily damage capacitors or shorten their lifespan.I don't know how this industry controls and handles it? Is manual soldering required? Is there a temperature limit in the capacitor specification? Is it the solder point temperature or the body temperature when marking?

Answer:Hello, the wave soldering peak temperature of film capacitors can be 275℃, and the tinning time is 3S-5S. The other factors are preheating temperature and time. Film capacitors can withstand this temperature. It does not affect the electrical characteristics.The specification approval book has the solderability temperature and soldering heat resistance temperature noted. The former is for the solderability of the capacitor pins, and the latter is about the effect of soldering temperature on the characteristics of film capacitors.

Question: Does X2 capacitor have products for RC step-down circuit applications? For example, products with better moisture resistance and tolerance, which are not using our products, are questions raised by customers in the past production process, and they hope to understand the situation in the industry.

Answer: X2 capacitors have lower precision, and their moisture-proof and flame-retardant properties are in line with international standards. CBB capacitors can also be selected. They are suitable for high-frequency pulse applications, AC applications, high-stability timing applications, temperature compensation circuits, switching power supply systems, color TV industry, lighting LED circuits, filtering, bypassing, coupling and other circuits.

Question:Do we have software tools for safety ceramic capacitor packaging that customers can directly drag and drop into their own design software interface when designing?

Answer:Does this refer to the capacitor graphics? The packaging of safety ceramic capacitors is automated, and the relevant size data of capacitors can be provided. When customers use it in drawing design, there should be software that can support mapping.