RM 8 Core B65811 ■ In accordance with IEC 60431 ■ Cores without center hole for transformer applications ■ RM cores are supplied in sets Magnetic characteristics (per set) Σl/A le Ae A min Ve with center hole without center hole 0,67 35,1 52 — 1 840 0,59 38 64 55 2 430 mm–1 mm mm2 mm2 mm3 12 g Approx. weight (per set) m 10,7 Gapped Material AL value s nH approx. mm 250 ± 315 ± 400 ± 630 ± µe Ordering code 1) -D with center hole -F with threaded sleeve -J without center hole 3% 3% 3% 5% 0,23 0,17 0,14 0,10 133 168 213 336 B65811-+250-A48 B65811-+315-A48 B65811-+400-A48 B65811-+630-J48 N41 160 ± 3 % 250 ± 5 % 630 ± 5 % 1600 ± 10 % 0,49 0,24 0,11 0,04 76 117 298 752 B65811-J160-A41 B65811-J250-J41 B65811-J630-J41 B65811-J1600-K41 N87 250 ± 3 % 400 ± 3 % 0,30 0,18 118 189 B65811-J250-A87 B65811-J400-A87 N48 1) Replace the + by the code letter “F” or “D” for the required version. Standard version is “D”. 224 08/01 RM 8 Core B65811 Ungapped Material A L value µe nH A L1min PV nH W/set Ordering code -D with center hole -J w/o center hole N26 2900 + 30/– 20 % 1550 B65811-D-R26 N30 5700 + 30/– 20 % 2680 B65811-J-R30 T38 12500 + 40/– 30 % 5870 B65811-J-Y38 B65811-J-R49 N49 2200 + 30/– 20 % 1040 1270 < 0,37 (50 mT, 500 kHz, 100 °C) N87 3300 + 30/– 20 % 1560 1900 < 1,20 B65811-J-R87 (200 mT, 100 kHz, 100 °C) N97 1) 3300 + 30/– 20 % 1560 1900 B65811-J-R97 < 1,00 (200 mT, 100 kHz, 100 °C) N41 4100 + 30/– 20 % 1930 1900 < 0,36 (200 mT, 25 kHz, 100 °C) 1) Preliminary data 225 08/01 B65811-J-R41 RM 8 Accessories B65812 Coil former, squared pins Material: GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085: H max. operating temperature 180 °C), color code black Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3,5 s Winding: see “Processing Notes”, page 153 For matching clamp and insulating washers see page 230 Sections AN mm2 lN mm A R value µΩ Pins Ordering code 1 30 42 47 5 8 8 12 B65812-N1005-D1 B65812-N1008-D1 B65812-W1008-D1 B65812-N1012-D1 2 28,4 42 50 5 8 B65812-N1005-D2 B65812-N1008-D2 ,2 +0 8,7 10 Pins omitted 5 pins 8 pins 3, 4, 6, 7, 9, 10, 12 3, 4, 9, 10 3 9 8 7 4 6 5 ø16,9 _ 0,2 0,97±0,05 5,5±0,3 0,56±0,05 ø9,95 _ 0,15 11,55 10,65 _ 0,15 0,60±0,05 Version 1 2 5 0,0 11 12 5± 1,3 12 pins 0,5 Ground Erdungspunkte Ø 1,3 + 0,1 ø1,3+0,1 2,54 ø1+0,1 Hole arrangement View in mounting direction 226 08/01 60 _ 10 FRM0301-M RM 8 Accessories B65812 Coil former, pins squared in the start-of-winding area Material: GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085: H max. operating temperature 180 °C), color code blue Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3,5 s Winding: see “Processing Notes”, page 153 For matching clamp and insulating washers see page 230 Sections AN mm2 lN mm A R value µΩ Pins Ordering code 1 30 42 47 5 8 12 B65812-K1005-D1 B65812-K1008-D1 B65812-K1012-D1 2 28,4 42 50 5 12 B65812-K1005-D2 B65812-K1012-D2 5 and 8 pins*) 12 pins 2 0, 8, 5 7+ ,0 ±0 35 1, 11 12 10 3 9 4 6 5 0,56±0,05 ø16,9 _ 0,2 ø9,95 _ 0,1 0,97±0,05 11,55 5,5±0,3 10,65 _ 0,15 0,60±0,05 8 7 *) Pins 6, 7 and 12 are omitted *) in the 5-pin version 1 2 0,5 Ground ø1,3+0,1 2,54 ø1+0,1 ˚ 60 ˚ _ 10 Hole arrangement View in mounting direction FRM0240-2 227 08/01 RM 8 Accessories B65812 Coil former for SMPS transformers with line isolation The creepage distances and clearances are designed such that the coil former is suitable for use in SMPS transformers with line isolation. ● Closed center flange with external wire guide ● Pins squared in the start-of-winding area ● Optimized for use with automatic winding machines Material: GFR thermosetting plastic (UL 94 V-0, insulation class to IEC 60085: F max. operating temperature 155 °C), color code green Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3,5 s Winding: see “Processing Notes”, page 153 Sections AN mm2 lN mm A R value µΩ Pins Ordering code 2 28,4 42 50 8 B65812-X1108-D2 1,3 + 8,7 Section Schnitt C-DC–D 5± 11 12 0,2 View AnsichtA A 0,0 5 7,4 1 2 5 8 7 D ø0,62 max. Ground Ø 1,3+0,1 Erdungspunkte ø1,3+0,1 ø1+0,1 Hole arrangement View in mounting direction 2,54 0,9±0,05 C 0,55±0,05 0,55±0,5 11,5 _ 0,15 10,6 _ 0,15 60 A ø16,9 _ 0,2 ø9,95 _ 0,1 0,45 max. 5,5±0,3 6 5 _1 0 9,9 FRM0260-G 228 08/01 RM 8 Accessories B65812 Coil former for power applications Optimized for automatic winding Material: GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085: F max. operating temperature 155 °C), color code black Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3,5 s Winding: see “Processing Notes”, page 153 For matching clamp and insulating washer 1 see page 230 Sections AN mm2 lN mm A R value µΩ Pins Ordering code 1 30 42 47 12 B65812-C1512-T1 Marking of pin 1 Ground Ø 1,3+0,1 Hole arrangement View in mounting direction (Note half pitch!) 229 08/01 RM 8 Accessories B65812 Clamp ■ With ground terminal, made of stainless spring steel (tinned), 0,4 mm thick ■ Solderability to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 °C, 2 s ■ Also available as strip clamp on reels Insulating washer 1 between core and coil former ■ For tolerance compensation and for insulation ■ Made of polycarbonate (UL 94 V-0, insulation class to IEC 60085: E 120 °C), 0,08 mm thick Insulating washer 2 for double-clad PCBs ■ Made of polycarbonate (UL 94 V-0, insulation class to IEC 60085: E 120 °C), 0,3 mm thick Clamp (ordering code per piece, 2 are required) B65812-A2203 Insulating washer 1 (reel packing, PU = 1 reel) B65812-A5000 Insulating washer 2 (bulk) B65812-C2005 Ordering code Clamp _ 0,2 4,5 +0,1 _ 0,1 13,6 +0,2 0,7 _ 0,2 _ 0,1 14,9 +0,2 0,7 _ 0,2 4,8 max. 0,7x0,4 FRM0105-8 Insulating washer 1 Insulating washer 2 230 08/01 RM 8 B63399 Accessories B65812 Adjusting screw ■ Tube core with thread and core brake made of GFR polyterephthalate Plastic adjusting screwdriver (not shown) Plastic handle for adjusting screwdriver (not shown) Core RM 8 Adjusting screw Material AL value nH Tube core ∅ × length mm N 48 250 315 Min. adjusting range Ordering code Material Color code 4,18 × 5,0 Si 1 white 12 3,85 × 5,0 N 22 gray 13 B65812-B3003-X22 400 4,18 × 4,0 N 22 brown 17 B65812-B3002-X22 630 4,18 × 5,0 N 22 black 9 B65812-B3001-X22 % B65812-B3001-X101 Adjusting screwdriver B63399-B1 Handle B63399-B5 Adjusting screw 231 08/01 Herausgegeben von EPCOS AG Marketing Kommunikation, Postfach 80 17 09, 81617 München, DEUTSCHLAND EPCOS AG 2000. Alle Rechte vorbehalten. Vervielfältigung, Veröffentlichung, Verbreitung und Verwertung dieser Broschüre und ihres Inhalts ohne ausdrückliche Genehmigung der EPCOS AG nicht gestattet. Mit den Angaben in dieser Broschüre werden die Bauelemente spezifiziert, keine Eigenschaften zugesichert. Bestellungen unterliegen den vom ZVEI empfohlenen Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen der Elektroindustrie, soweit nichts anderes vereinbart wird. Diese Broschüre ersetzt die vorige Ausgabe. Fragen über Technik, Preise und Liefermöglichkeiten richten Sie bitte an den Ihnen nächstgelegenen Vertrieb der EPCOS AG oder an unsere Vertriebsgesellschaften im Ausland. Bauelemente können aufgrund technischer Erfordernisse Gefahrstoffe enthalten. Auskünfte darüber bitten wir unter Angabe des betreffenden Typs ebenfalls über die zuständige Vertriebsgesellschaft einzuholen. Published by EPCOS AG Marketing Communications, P.O. Box 80 17 09, 81617 Munich, GERMANY EPCOS AG 2000. All Rights Reserved. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited. The information contained in this brochure describes the type of component and shall not be considered as guaranteed characteristics. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed. This brochure replaces the previous edition. For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our Sales Offices. 1