Original connector, generally speaking, refers to the connectors of big brands, such as Molex, TYCO, JST, JAE, Deutsch, etc. Since these companies have many years of history in this field, they are known for their high quality and continuous innovation.
Equivalent connectors are also called replacement connectors, compatible connectors, and cross connectors. In most cases, they refer to connectors produced in China. Since these manufacturers have not processed the connector application for so long, there is no famous Molex, Tyco, JST, Deutsch.
Original connector and equivalent connector share the same specifications, including temperature, pitch, material, appearance, etc.And of course they have their difference, such as cost, delivery, quality, etc.
Original connector is more expensive than equivalent connector and delivery is longer. Quality of original connector is always considered the best. And not all original connector has corresponding equivalent.