Ferrites and accessories PM 74/59 Core and accessories Series/Type: B65686, B65687 Date: March 2012 a~í~=pÜÉÉí ¤ EPCOS AG 2012. Reproduction, publication and dissemination of this data sheet and the information contained therein without EPCOS’ prior express consent is prohibited.
PM 74/59 Core B65686 ■ To IEC 61247 ■ Particularly suitable for power transformers and energy storage chokes ■ Delivery mode: sets Magnetic characteristics (per set) 6 l/A le Ae Amin Ve = 0.162 mm–1 = 128 mm = 790 mm2 = 630 mm2 = 101000 mm3 Approx. weight 460 g/set Gapped Material Pe Ordering code nH s approx. mm 315 r3% 630 r3% 3.80 1.
PM 74/59 Accessories B65687 Coil former Material: GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085: F max. operating temperature 155 qC), color code black Valox 420-SE0 ® >E45329 (M)@, GE PLASTICS B V Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 qC, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 qC, 3.5 s Winding: see Data Book 2007, chapter “Processing notes, 2.1” Also available without solder pins.
PM 74/59 Accessories B65687 Mounting assembly ■ For chassis mounting1) or printed circuit boards ■ The set comprises a yoke and a base plate ■ Fixing nuts M3 and washers are supplied Yoke ■ Material: Brass clamping yoke ( 3 mm) with thread Base plate ■ Material: Aluminum (0.6 mm) Ordering code Complete mounting assembly including nuts and washers 1) On a chassis the coil former must be mounted with its solder pins upward.
Ferrites and accessories Cautions and warnings Mechanical stress and mounting Ferrite cores have to meet mechanical requirements during assembling and for a growing number of applications. Since ferrites are ceramic materials one has to be aware of their special behavior under mechanical load. Just like any ceramic material, ferrite cores are brittle and sensitive to any shock, fast changing or tensile load.
Important notes The following applies to all products named in this publication: 1. Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned.
