FEER39L overview
FEER39L is a component documented by NEC. The PDF description identifies it as "Ferrite Cores." This guide condenses the most useful engineering information from the available PDF so that designers and sourcing teams can identify the checks that still need confirmation in the original document.
Datasheet snapshot
- Manufacturer: NEC
- Part number: FEER39L
- Category: IC
- Datasheet length: 71 Pages
Specifications and operating details
The following points were extracted from the PDF text. Check the associated conditions, notes and limits in the complete document before using a value in a design.
- As switching power supplies rapidly become more compact and thinner, requirements for ferrite as a high-frequency transformer material are becoming increasingly stringent.
- To meet these demands, NEC TOKIN has enhanced its lineup of ferrite cores by adding the BH1 and BH2 types (-300 kHz) which feature improved core loss over the B25 type (-300 kHz), and B40 (500 kHz -1 MHz) with improved core loss in high fr.
- 2) Select a ferrite core having temperature and frequency proper- ties for the core loss that meet the demands of the equipment to be used.
- Make sure to handle it carefully as it has low tolerance for impact such as being knocked or dorpped, which may cause it to break or chip.
- B10 : Bms with magnetic field 10 Oe (796A/m) B15 : Bms with magnetic field 15 Oe (1194A/m) Effective saturation residual coercive force Brms(G ; T) This refers to the magnetic flux density when the magnetic field is removed from the condit.
- Frequency Characteristics of i vs.
- Flux density f=500kHz 25°C25°C 100°C100°C 60°C B40 type Core loss vs.
Topics covered by the datasheet
The document includes sections related to:
- CONTENTS
Engineering review checklist
- Confirm the exact ordering code, package, pinout or terminal arrangement and document revision.
- Compare recommended operating conditions with absolute maximum ratings and retain adequate design margin.
- Validate electrical, thermal, mechanical and environmental behavior in the final application.
Always confirm values against the latest manufacturer-controlled datasheet, especially when qualifying a substitute or releasing a production BOM.
View the complete PDF and model record
Open the FEER39L datasheet and model details to review the complete PDF, document pages and available product information.
Source attribution
Adapted from the PDF associated with this DigiCamel model page.
Source model URL: https://www.digicamel.com/product.php?slug=feer39l-nec