Nexperia has defined a new MOSFET product group – Application Specific FETs (ASFETs) – which feature MOSFETs with optimized parameters for specific applications. By focusing on individual applications, significant improvements can be offered.

Nexperia is offering ASFET families for battery isolation, motor control, hot-swap and Power over Ethernet (PoE) applications.

Defining the improvements that these tailored ASFETs can offer is application specific, examples include, 3x – 5x improvement in Safe Operating Area (SOA) for hot-swap applications, and maximum current ratings in excess of 300 A for motor applications.

 “There are 100+ parameters on a regular MOSFET datasheet but usually only a few are critical in each project,” explains Nexperia’s Chris Boyce, “however, as the applications change, so do the critical parameters. We determine the performance of every element of our products; the core silicon technology, the chip design, the package and the manufacturing & test procedures. By keeping individual application requirements front & centre of our thinking, we can choose to optimise the parameters that matter most in a particular use-case, often at the expense of others of less relevance.”

The ASFET category will soon be joined by a family of automotive products with guaranteed repetitive avalanche performance for driving inductive loads.