1. It depends on the technology of the optocoupler manufacturer.

If you want to buy a batch of optocoupler components, you must meet certain standards. This is to ensure that the produced equipment products can achieve better light-sensing performance, but you can't just find a manufacturer to buy them. Check the quality of coupling components.

When buying, you should also choose a professional domestic optocoupler manufacturer to see how the manufacturer's technical level in the field of optocouplers is, whether the products produced are widely used, and how the word-of-mouth response is.

2. Pay attention to monitoring the optocoupler components when purchasing.