IEEE P389/D, May 2019

IEEE P389/D, May 2019 is a draft recommended practice focused on testing transformers and inductors for electronics applications. It addresses the technical need to evaluate these components in a controlled, repeatable way so engineers can compare performance and verify design intent. In electronics and power-related systems, that matters because transformer and inductor behavior can affect efficiency, reliability, and overall circuit performance. The document is most relevant where component testing must support careful design and procurement decisions.

What is IEEE P389/D, May 2019?

This draft standard provides guidance for testing transformers and inductors used in electronics applications, where electrical characteristics and operating behavior often need to be measured consistently. IEEE P389/D, May 2019 is intended to support a more uniform approach to evaluation, helping define how these components may be checked for performance, suitability, and repeatability. As a draft recommended practice, it is especially useful for engineering teams that need a common technical reference during development, qualification, or product comparison.

Where is IEEE P389/D, May 2019 used?

IEEE P389/D, May 2019 is typically used in electronics engineering workflows that involve transformer and inductor testing for circuits, devices, and systems. It is relevant in laboratories, component qualification programs, and manufacturing environments where magnetic components are assessed before integration into a design. The standard may also support work in power-related applications, where these parts are used for energy conversion, filtering, isolation, or signal handling and must meet defined electrical expectations.

Why is IEEE P389/D, May 2019 important?

This document matters because testing methods for transformers and inductors can influence confidence in component performance and consistency. IEEE P389/D, May 2019 helps reduce ambiguity in how results are obtained and interpreted, which supports better design control and procurement decisions. For teams working with electronics applications, a common testing practice can also help identify variation early, limit risk in qualification, and improve comparability between parts, suppliers, or test setups. It is particularly useful when performance and reliability are closely linked.

• Draft recommended practice
• Transformer and inductor testing
• Electronics applications focus
• Performance and repeatability checks
• Component evaluation support