What is BS EN IEC 63093-4-Limits of surface irregularities of RM cores about?
BS EN IEC 63093 is an international standard that discusses ferrite cores. The main objective of the BS EN IEC 63093 series is to ensure ferrite cores meet the required quality and performance levels so as to effectively avoid electromagnetic interference.
BS EN IEC 63093-4 is the fourth part of the multi-series that specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of RM-cores and low-profile RM-cores made of ferrite, and the locations of their terminal pins on a 2,54 mm printed wiring grid in relation to the base outlines of the cores.
The selection of core sizes for BS EN IEC 63093-4 is based on the philosophy of including those sizes which are industry standards, either by inclusion in a national standard or by broad-based use in industry.
Who is BS EN IEC 63093-4- Limits of surface irregularities of RM cores?
BS EN IEC 63093-4 on ferrite cores are relevant to:
- Manufacturers of ferrite cores
- Manufacturers and suppliers of RM cores
- Transformer and inductor manufacturers
- Electronics industry
Why should you use BS EN IEC 63093-4- Limits of surface irregularities of RM cores?
RM-cores are especially suited for use on printed wiring boards because it is possible to solder the wire leads of the coils directly to the pin terminations molded in the coil former.
BS EN IEC 63093-4 gives guidance on allowable limits of surface irregularities applicable to RM-cores in accordance with the relevant generic specification.
BS EN IEC 63093-4 also helps identify surface defects in pot-cores, such as chips, cracks, ragged edges, pores and pull-out, which helps in mitigating overall application performance concerns. The limits of these surface irregularities are helpful to determine the extent of damage due to which product failure can occur.
Compliance with the best industry requirements on dimensions provided by BS EN IEC 63093-4 ensures mechanical interchangeability of complete assemblies and wound coil formers.
What’s changed since the last update?
BS EN IEC 63093-4:2019 supersedes BS EN 60424‑2:2016 and BS EN 62317‑4:2005, which are withdrawn. The significant technical changes are:
- IEC 63093-4 integrates the contents of IEC 62317-4:2005 and IEC 60424-2:2015
- IEC 60424-2:2015, Table 2, has been included in Annex C as Table C.1
