RM 8 Core and Accessories Individual parts Part no. Page Adjusting screwdriver (for assembly only) B63399 244 Matching handle B63399 244 Adjusting screw B65812 244 Core B65811 238 Clamps B65812 243, 250 Insulating washer 1 B65812 243, 250 Coil former B65812 240, 249 Core B65811 238 B65812 243, 250 B65812 241 Threaded sleeve (glued-in) Insulating washer 2 Example of an assembly set Also available: Siemens Matsushita Components Coil former for SMPS transformers Coil former for power applications RM 8 low-profile core Coil former B65812 242 B65811-P 248 B65812 249 237 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 Amin Ve with center hole 0,67 35,1 52 — 1 840 without center hole 0,59 38 64 55 2 430 mm–1 mm mm2 mm2 mm3 12 g Approx. weight (per set) m 10,7 Gapped Material N48 N41 N87 AL value s µe nH 250 ± 3 % 315 ± 3 % 400 ± 3 % 630 ± 5 % 160 ± 3 % 250 ± 5 % 630 ± 5 % 1600 ± 10 % 250 ± 3 % 400 ± 3 % approx. mm 0,23 0,17 0,14 0,10 0,49 0,24 0,11 0,04 0,30 0,18 133 168 213 336 76 117 298 752 118 189 Ordering code 1) -D with center hole -F with threaded sleeve -J without center hole B65811-+250-A48 B65811-+315-A48 B65811-+400-A48 B65811-+630-J48 B65811-J160-A41 B65811-J250-J41 B65811-J630-J41 B65811-J1600-K41 B65811-J250-A87 B65811-J400-A87 1) Replace the + by the code letter “F” or “D” for the required version. Standard version is “D”. 238 Siemens Matsushita Components RM 8 Core B65811 Ungapped Material AL value µe N26 N30 T35 T38 N49 nH 2900 + 30/– 20 % 5700 + 30/– 20 % 8400 + 30/– 20 % 12500 + 40/– 30 % 2200 + 30/– 20 % nH 1550 2680 3940 5870 1040 1270 AL1min PV N67 3300 + 30/– 20 % 1560 1900 N87 3300 + 30/– 20 % 1560 1900 N41 4100 + 30/– 20 % 1930 1900 Siemens Matsushita Components W/set Ordering code -D with center hole -J w/o center hole B65811-D-R26 B65811-J-R30 B65811-J-R35 B65811-J-Y38 B65811-J-R49 0,37 (50 mT, 500 kHz, 100 °C) 1,50 B65811-J-R67 (200 mT, 100 kHz, 100 °C) 1,20 B65811-J-R87 (200 mT, 100 kHz, 100 °C) 0,36 B65811-J-R41 (200 mT, 25 kHz, 100 °C) 239 RM 8 Accessories B65812 Coil former 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 page 152 Squared pins For matching clamp and insulating washers see page 243 1 AN mm2 30 lN mm 42 AR value µΩ 47 2 28,4 42 50 Sections Pins Ordering code 5 8 12 5 8 12 B65812-N1005-D1 B65812-N1008-D1 B65812-N1012-D1 B65812-N1005-D2 B65812-N1008-D2 B65812-N1012-D2 12 pins Version Pins omitted 5 pins 8 pins 3, 4, 6, 7, 9, 10, 12 3, 4, 9, 10 Hole arrangement View in mounting direction Ground Ø 1,3 + 0,1 240 Siemens Matsushita Components 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 page 152 Sections 2 AN mm2 28,4 lN mm 42 AR value µΩ 50 Section C–D Pins Ordering code 8 B65812-X1108-D2 View A Ground Ø 1,3+0,1 Hole arrangement View in mounting direction Siemens Matsushita Components 241 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 page 152 For matching clamp and insulating washer 1 see page 243 Sections 1 AN mm2 30 lN mm 42 AR value µΩ 47 Pins Ordering code 12 B65812-C1512-T1 Marking of pin 1 Ground Ø 1,3+0,1 Hole arrangement View in mounting direction (Note half pitch!) 242 Siemens Matsushita Components 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), 0,06 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) Insulating washer 1 (reel packing, PU = 1 reel) Insulating washer 2 (bulk) Ordering code B65812-A2203 B65812-A5000 B65812-C2005 Clamp Insulating washer 1 Siemens Matsushita Components Insulating washer 2 243 RM 8 Accessories B63399 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 Min. adjusting range Ordering code Material AL value nH Tube core ∅ × length mm Material Color code M 33 100 3,85 × 5,0 Si 1 yellow 16 B65812-B3003-X101 N 48 250 4,18 × 5,0 Si 1 white 12 B65812-B3001-X101 315 3,85 × 5,0 N 22 gray 13 B65812-B3003-X22 400 4,18 × 4,0 N 22 brown 17 B65812-B3002-X22 500 630 4,18 × 5,0 N 22 black 13 9 B65812-B3001-X22 % Adjusting screwdriver B63399-B1 Handle B63399-B5 Adjusting screw 244 Siemens Matsushita Components RM 8 Inductance adjustment curves (nominal values) Relative inductance change ∆ L/L versus turns N of adjusting screw. 0 at least 2 turns engaged. Adjusting screw B65812-B3003-X101 Color code yellow Adjusting screw B65812-B3001-X101 Color code white Adjusting screw B65812-B3003-X22 Color code gray Siemens Matsushita Components 245 RM 8 Inductance adjustment curves (nominal values) Relative inductance change ∆ L/L versus turns N of adjusting screw. 0 at least 2 turns engaged. Adjusting screw B65812-B3002-X22 Color code brown 246 Adjusting screw B65812-B3001-X22 Color code black Siemens Matsushita Components RM 8 Q factor characteristics (typical values) Flux density in the core B < 2 mT Material L (mH) for AL= 315 nH AL= 400 nH Turns Wire; RF litz wire Sections N 48 381 113 19,6 2,85 1100 600 280 95 0,15 CuL 0,2 CuL 20 × 0,05 CuLS 60 × 0,05 CuLS 1 1 1 1 484 144 31,4 3,6 N 48 AL= 315 nH RF litz Enamel copper wire N 48 AL= 400 nH RF litz Enamel copper wire Siemens Matsushita Components 247 RM 8 »Low Profile« Core B65811-P ● For compact transformers ● Without center hole ● RM cores are supplied in sets Magnetic characteristics (per set) Σl/A le Ae Amin Ve = 0,44 mm–1 = 28,7 mm = 64,9 mm2 = 55,4 mm2 = 1 860 mm3 Approx. weight 9,2 g/set Ungapped µe Material AL value N49 nH 2900 + 30/– 20 % 1020 2000 N87 4100 + 30/– 20 % 1440 2550 248 AL1min PV Ordering code W/set 0,33 B65811-P-R49 (50 mT, 500 kHz, 100 °C) 0,92 B65811-P-R87 (200 mT, 100 kHz, 100 °C) Siemens Matsushita Components RM 8 »Low Profile« Accessories B65812 Coil former Material: GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085: H 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 page 152 Squared pins For matching clamp and insulating washers see page 250 AN mm2 14,3 Sections 1 lN mm 42 AR value µΩ 101 Pins Ordering code 10 B65812-P1010-D1 1,3 ,2 8,7 5 +0 0,0 8 7 5± 11 12 1 2 10 3 9 Pins 5 and 8 omitted 4 6 5 5,7 _ 0,15 0,60±0,05 ø16,9 _ 0,2 0,97±0,05 6,7 _ 0,2 5,5±0,3 ø9,95 _ 0,1 0,5 Ground Erdungspunkte Ø 1,3+0,1 ø1,3+0,1 2,54 ø1+0,1 60 _ 10 FRM0269-K Hole arrangement View in mounting direction Siemens Matsushita Components 249 RM 8 »Low Profile« 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), 0,06 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) Insulating washer 1 (reel packing, PU = 1 reel) Insulating washer 2 (bulk) Ordering code B65812-P2203 B65812-A5000 B65812-C2005 8,7+0,3 0,7 _ 0,2 4,5±0,1 _ 0,2 4,5 +0,1 0,7 _ 0,2 10+0,3 Clamp Insulating washer 1 250 0,7 x 0,4 FRM0270-N Insulating washer 2 Siemens Matsushita Components