Automated selection of analogs for spare parts provides not only more efficient work of engineers, but also uninterrupted assembly or repair of equipment. The algorithm allows you to instantly compare specifications, prices and even suppliers. For example, sometimes fast delivery is more important than price or price is more important than perfect match of the original part.
Meet technical requirements with the right choice of a paired inductor
When assembling DC-DC converters, coupled inductors are used. In such inductors, two or more windings are provided, which are located on a common core. The difficulty in the selection of analogs arises due to the fact that the design assumes the presence of four or more ports. There are only two such ports in unrelated models. Since coupled inductors operate in a transformer circuit, they can be connected in different ways. The result is either isolation transformers or common mode chokes.
When choosing twin coils, there are a number of very important factors to consider:
• The minimum inductance required for the ripple current.
• How much power needs to be converted.
• What DC current strength must be withstand each winding.
• The frequency of use of the equipment must also be known in advance in order to determine a safe SRF.
When equipment must be resistant to high temperatures, experts are sure to look for information about the dependence of temperature on DC. And in order to calculate the exact amount of heat that the system will receive, you also need to subtract the heat loss on the core. All these calculations are time consuming. And in addition, you need to take into account the length, width and height of the part. If there are several models to choose from, you can still rely on cost or delivery speed.
Stable supplies through the selection of analogues
The SourcingBot service has its own database. Consisting of parts from trusted brands for electrical devices. The program offers not only a complete set of technical characteristics of each model, but also the results of laboratory tests. It is enough to enter the name of the part in the search line and the system will find all popular analogues for you. Models are ranked according to the degree of coincidence with the desired part.
For example, we want to find a replacement for the Bourns SRF1280A. It is enough to enter the desired characteristics of the inductor: the primary inductance is 4-6uH, and the rated current is 7-10A. The first on the list was the TT Electronics choke model HM78D1284R7MLFTR. There are also 20 more analogs.