FE11001-1212-005 FERRITE COMPONENTS FOR TV & VCR USE An integrated maker of ferrites and ferrite products, FDK has developed many ferrite materials, and produces a wide selection of ferrite cores and core products. This catalog specifically introduces FDK deflection yoke cores, flyback transformer cores, and rotary transformers. Contents Page Ferrite cores for deflection yoke ..........................2 Ferrite cores for flyback transformer ...................8 Rotary transformers ..........................................16 FERRITE CORES FOR DEFLECTION YOKE The growing demand for a greater image clarity and definition in television images has made necessary an improvement in ferrite cores for deflection yoke. With the advances in the ferrite technology, FDK has developed H44V ferrite materials with lower core loss than H44F. H44V material supplements the existing H44 and H44F widely used in many types of televisions. FDK also has introduced DS1 ferrite materials suitable for high quality picture displays with high horizontal scanning frequency. Although this catalog presents standard FDK ferrites and ferrite products, only FDK can design and produce any type of customized core on a made-to-order basis, and welcomes inquiries for custom-design cores. Contents Page Standard characteristics of ferrite cores for deflection yoke ***************3 Ferrite materials for deflection yokes according to frequency*************5 Shape selection according to application********************************************5 Dimensions of ferrite cores for deflection yoke For television *******************************************************************************6 For display ***********************************************************************************7 http://www.fdk.co.jp 2 Standard material characteristics of ferrite cores for deflection yoke Property Symbol Condition Unit H44 H44F H44V DS1 AC initial permeability iac 0.1MHz -- 350 400 450 1000 230 260 240 350 190 220 210 320 160 170 170 290 23C Saturation magnetic flux density Bs 60C mT 100C Residual magnetic flux density Br 23C mT 160 190 180 190 Coercivity Hc 23C A/m 40 24 20 24 Relative loss factor tan/ 0.1MHz x10-6 <50 <120 <120 <20 420 230 60 45 380 170 45 35 100C 430 170 40 25 23C 1500 1000 220 180 1470 850 180 130 1640 860 170 110 >150 >150 >135 >150 23C Core loss 25kHz Pc 100mT Core loss 100kHz Pc 100mT 60C 60C kW/m3 kW/m3 100C Curie temperature Tc -- C Resistivity -- *m Apparent density d -- kg/m3x103 105 105 105 102 4.5 4.6 4.6 4.8 Note:1. The above values were obtained from FR25/15/5 troidal cores. 2. The values were obtained at 232C unless otherwise specified. iac vs. temperature Bs vs. temperature 400 [1kHz] 2,000 DS1 DS1 1,500 300 Bs (mT) H44V H44F iac H44F 1,000 H44V H44 H44 200 500 100 0 20 http://www.fdk.co.jp 40 60 80 Temperature (C) 100 120 0 20 40 60 80 100 120 140 160 180 Temperature (C) 3 Core loss vs. frequency 100C 50mT H44 260 3 Core loss (kW/m ) H44F 180 H44V DS1 100 20 20 40 60 80 100 120 Frequency (kHz) Core loss vs. frequency Core loss vs. frequency 32kHz 50mT 100kHz 50mT 300 80 H44 3 Core loss (kW/m ) 250 3 Core loss (kW/m ) H44 60 H44F 200 H44F H44V 40 150 H44V DS1 20 20 http://www.fdk.co.jp 40 60 80 Temperature (C) 100 120 100 20 DS1 40 60 80 Temperature (C) 100 120 4 Ferrite materials for deflection yoke according to frequency 32 Consumer electronics 64 128 Medium resolution Frequency (kHz) High resolution Mg-Zn ferrite core H44 Suitable materials Grades 15.75 Mg-Zn ferrite core H44F Ni-Zn core H44V Mn-Zn core DS1 TV CAD Medical use Applications Personal computer Control tower use Military use Aviation use Computer graphic display Word proccessor Controller display Work station Specialty display FA display Digital broadcasting display Shape selection according to application Screen size Display Television 10 DY4037MA DY4137CV DY4232A 20 30 http://www.fdk.co.jp DY4032A DY4034A DY4336AN DY4743L DY5139CD DY5047C DY5042A DY5245A DY5645A DY4037MC DY4228AM DY4640L DY4033A DY4334A DY4741AT DY4846M DY3839B DY4349TG DY4648BA DY4646AB DY4646BV DY4650B DY4951GB DY4748TG DY4949GH DY5139AV DY5039AB DY5145A DY5439MA DY5647L 5 Dimensions of ferrite cores for deflection yoke For television Dimensions (mm) Shape code Type D1 d1 D2 d2 H T A A B C DY4032AT A 072.50.89 068.00 56.000.60 39.590.50 32.000.4 7.0 -- 30.0 9.0 12.00.2 DY4033A A 072.50.89 068.00 56.000.60 39.590.50 33.000.4 7.0 -- 30.0 -- 12.00.2 DY4034A A 075.00.89 071.00 56.000.60 40.090.40 34.000.4 9.0 -- 30.0 -- 12.00.2 DY4036A B 077.00.89 072.58 52.000.60 40.090.40 36.500.5 7.0 -- -- -- 12.00.2 DY4037MA B 074.00.89 069.69 52.500.60 40.490.40 37.000.4 5.0 -- -- -- 12.00.2 DY4037MC B 074.00.89 069.69 52.000.60 40.090.40 37.000.5 7.0 -- -- -- 12.00.2 DY4133C B 074.00.89 069.69 52.000.60 41.090.40 33.000.4 7.0 -- -- -- 12.00.2 DY4137CV B 074.00.89 069.69 53.000.60 41.090.40 37.000.4 7.0 -- -- -- 12.00.2 DY4228AM A 072.50.89 068.40 56.000.60 42.090.40 28.000.4 7.0 -- 30.0 -- 12.00.2 DY4232A A 072.50.89 068.40 56.000.60 42.090.50 32.000.5 7.0 -- 30.0 -- 12.00.2 DY4334A A 089.00.99 082.66 58.000.60 43.390.50 34.000.5 5.0 -- 36.4 -- 12.00.2 DY4336AN A 073.70.89 069.73 56.000.60 43.370.40 35.500.4 5.0 -- 29.0 -- 12.00.2 DY4640L A 089.81.09 081.86 59.801.00 46.090.50 40.000.5 5.0 -- 30.0 -- 12.00.2 12.00.2 DY4735A A 084.80.99 078.50 62.000.60 47.290.50 35.000.5 4.0 -- 30.3 -- DY4741AT A 089.00.99 084.00 60.000.60 46.590.50 40.500.5 5.0 -- 30.0 13.0 12.00.2 DY4743L A 089.81.29 081.80 59.801.00 46.890.50 42.500.5 5.0 -- 29.0 -- 12.00.2 DY4842A A 089.01.09 084.00 60.001.00 48.090.50 42.000.5 5.0 -- 28.0 -- 12.00.2 DY4846M B 090.01.29 084.84 61.000.60 48.290.50 46.000.5 5.5 -- -- -- 12.00.2 DY4945A A 124.01.39 116.19 64.000.70 49.090.50 44.500.5 5.0 -- 44.5 -- 12.00.2 DY4948A A 124.01.39 116.19 65.000.70 49.090.50 47.700.5 5.0 -- 40.1 -- 12.00.2 DY5039AB A 110.01.10 103.64 62.500.60 50.480.40 49.000.4 5.0 -- 41.5 13.0 12.00.2 12.00.2 DY5041B A 108.01.30 104.00 65.401.00 50.490.50 41.200.5 4.5 -- 41.5 -- DY5042A A 106.01.00 100.85 64.000.60 50.090.50 42.000.4 5.0 -- 38.5 13.0 12.00.2 DY5043C B 114.01.10 109.60 67.000.70 50.090.50 43.000.5 5.0 -- -- -- 12.00.2 DY5047C B 119.01.20 114.60 66.000.70 50.090.50 47.000.5 5.0 -- -- -- 12.00.2 5.5 -- -- -- 12.00.2 5.0 -- -- -- 12.00.2 DY5139AV B 102.31.00 094.16 64.260.60 50.520.50 +0.3 38.950.5 -0.5 DY5139CC B 109.01.10 104.70 66.000.70 51.090.50 39.000.4 DY5139CD B 108.01.10 102.70 70.000.70 51.090.50 39.000.4 6.0 -- -- -- 12.00.2 DY5145A A 112.01.00 105.36 65.000.66 51.090.52 44.500.5 4.8 -- 40.0 -- 12.00.2 DY5245A A 114.01.00 107.65 65.880.66 51.880.52 44.500.5 4.8 -- 40.0 -- 12.00.2 DY5439MA A 108.01.00 104.00 70.000.80 54.090.50 39.000.5 6.0 -- 42.0 -- 12.00.2 DY5445A A 114.01.20 109.65 72.000.80 53.880.60 44.500.5 5.5 -- 40.0 -- 12.00.2 DY5645A A 118.01.20 114.10 75.000.80 56.490.60 44.500.5 5.5 -- 40.0 -- 12.00.2 DY5647L A 124.01.40 116.18 72.000.70 56.090.60 47.000.5 6.0 -- 39.0 -- 12.00.2 Type B Type A H C D2 d2 d1 D1 C T D2 d1 A d2 T A D1 H B http://www.fdk.co.jp 6 For display Dimensions (mm) Shape code Type d1 D1 D2 d2 H T A A B C DY3839B A 069.000.7 64.630 51.000.6 37.610.40 39.000.4 5.00 -- 22.0 11.5 12.00.2 DY3935A A 071.000.7 66.850 55.100.6 39.200.40 35.000.5 5.00 -- 17.0 10.0 12.00.2 DY3938GA A 071.500.7 67.380 53.000.6 39.520.20 38.000.4 5.00 -- 22.0 12.0 12.00.2 DY3939A A 071.000.7 66.850 55.100.6 39.200.40 39.000.5 5.00 -- 17.0 10.0 12.00.2 DY3940B A 070.000.8 65.880 53.000.6 39.200.40 40.000.4 5.00 -- 22.0 10.5 12.00.2 DY4349TG A 088.900.2 81.890 55.000.6 43.000.20 49.000.2 5.00 -- 32.0 -- -- DY4447GV A 087.200.9 79.190 60.000.6 43.570.20 46.500.4 6.12 11.5 -- -- 12.00.2 12.00.2 DY4449GV A 087.200.9 79.190 60.000.6 43.570.20 48.500.4 6.12 13.5 -- -- DY4450TG A 091.000.2 84.450 57.000.6 44.000.20 49.500.2 4.00 -- 34.0 -- -- DY4545GV A 085.201.0 76.360 59.000.6 45.000.20 45.000.3 5.00 -- 27.0 -- 12.00.2 DY4546B A 090.000.9 80.800 60.000.6 45.260.50 46.000.5 5.00 -- 31.0 10.5 12.00.2 DY4549TG A 089.000.8 80.600 58.000.6 45.000.20 49.000.3 5.00 -- 31.0 -- -- DY4551GH A 088.200.8 82.200 60.500.6 45.020.20 50.500.3 5.00 -- 26.0 11.5 12.00.2 DY4645TG A 088.100.2 81.100 63.000.5 46.000.15 44.500.2 5.00 -- 25.7 -- -- DY4646AB A 085.001.0 77.360 60.000.7 46.270.46 46.000.5 5.00 09.0 -- 16.5 12.00.2 DY4646BA A 085.001.0 76.260 57.600.7 45.840.50 45.600.4 (5.0) -- 26.0 12.5 12.00.2 DY4646BV A 088.000.9 79.780 59.840.6 45.980.46 46.000.5 5.00 -- 26.0 12.0 12.00.2 DY4648BA A 090.000.9 82.620 60.000.6 46.000.46 48.000.5 5.00 -- 31.0 10.0 12.00.2 DY4648GB A 084.140.9 78.140 61.000.6 46.000.20 48.000.3 5.00 -- 24.0 12.0 12.00.2 DY4650B A 088.000.9 79.780 59.840.6 45.840.46 50.000.5 5.00 -- 26.0 12.0 12.00.2 DY4650GA A 088.000.9 79.780 59.840.6 45.840.23 49.800.2 5.00 -- 26.0 12.0 12.00.2 DY4748TG A 092.000.2 86.540 61.200.6 47.200.20 48.000.2 6.50 -- 30.0 -- -- DY4852TG A 094.000.8 88.820 60.250.5 48.250.20 51.800.2 4.30 -- 31.0 -- -- DY4949GH A 096.001.0 90.550 62.000.6 49.650.20 48.600.2 5.00 -- 28.5 16.0 12.00.2 DY4951GB A 098.001.0 90.670 66.400.7 +0.4 49.200.60 -0 +0.2 51.000.5 -0.8 7.00 -- 30.0 15.0 12.00.2 DY5248T B 092.001.2 86.295 63.800.8 51.850.42 48.000.5 6.00 -- -- -- -- Type A H C d2 D2 d1 D1 C T D2 d2 A d1 D1 A T Type B H B http://www.fdk.co.jp 7 FERRITE CORES FOR FLYBACK TRANSFORMER 5H20 ferrite materials have been best-seller for television flyback transformer cores for many years. 5H30 ferrite materials have been used for display flyback transformer cores and characterized as smaller core loss than 5H20. Besides, FDK had begun the sale of flyback transformer cores using the brand-new 5H40 ferrite materials with a remarkably reduced core loss enable the development of high-resolution displays. Contents Page Standard material characteristics of ferrite cores for flyback transformer ......9 Comparison of screen size and core shape ......................................11 Dimensions of ferrite cores for flyback transformer ..........................12 http://www.fdk.co.jp 8 Standard material characteristics of ferrite cores for flyback transformer Property Symbol Condition Unit 5H20 5H30 5H40 AC initial permeability iac 0.1MHz -- 1800 2300 2200 Saturation magnetic flux density Bs (800A/m) 520 500 500 420 400 400 Residual magnetic flux density Br 23C mT 150 130 130 Corecivity Hc 23C A/m 13 13 13 Relative loss factor tan/iac 0.1MHz x10-6 <5 <5 <5 23C mT 100C 80C 150mT 16kHz 3.9 3.5 2.9 3.5 3.3 2.7 W/kg 100C 80C 32kHz 19 18 15 17 16 13 36 33 27 32 29 24 95 88 72 90 85 70 8 6 6 >200 >200 >200 3 3 3 4.8 4.8 4.8 W/kg 100C Core loss 80C 200mT 50kHz W/kg 100C 80C 100kHz W/kg 100C Temperature coefficient r 20~80C x10-6 Curie temperature Tc -- C Resistivity -- *m Apparent density d -- kg/m3x103 Note: 1. The above values were obtained from FR25/15/5 toroidal cores. 2. The room temperature was 232C in the table unless otherwise specified. http://www.fdk.co.jp 9 Core loss vs. frequency Core loss vs. magnetic flux density 5H40 100C 5H20 100C 2 300mT 10 200mT 150mT 100mT 10 100kHz 2 64kHz 32kHz core loss (W/kg) Core loss (W/kg) 10 5H40 100C 5H20 100C 1 16kHz 10 1 10 1 4 7 10 2 2 70 10 Magnetic flux density (mT) Frequency (kHz) iac vs. temperature 400 a vs. magnetic flux density 5H20 5H40 7,000 7,000 5H40 5H20 6,000 6,000 23C 5,000 4,000 4,000 a iac 5,000 100C 3,000 3,000 2,000 2,000 1,000 1,000 0 0 0 50 100 150 Temperature (C) http://www.fdk.co.jp 200 250 0 100 200 300 400 Magnetic flux density (mT) 10 Core loss vs. temperature Core loss vs. temperature 16kHz 150mT 100kHz 200mT 250 12 10 200 8 Core loss (W/kg) Core loss (W/kg) 5H20 5H30 5H40 6 5H20 150 5H30 5H40 100 4 50 2 0 0 0 20 40 60 80 Temperature (C) 100 120 0 20 40 60 80 Temperature (C) 100 120 Comparison of screen size and core shape 35 Core base diameter 18 High-frequency display Color TV 21 30 16 25 14 20 12 15 10 10 8 Size in inches 20 19 18 17 16 15 High-frequency 14 display 50 Color TV http://www.fdk.co.jp 60 70 80 90 100 110 Input voltage (W) 11 Dimensions of ferrite cores for flyback transformer RU type D H C A E F B Shape code RU1116A RU1728A RU2027A RU2953A RU-26 RU2749A RU-30DB RU3060B RU3054A RU3659A RU3561A RU3261A RU3258B RU3762B RU3465A RU3654A RU4068A RU3770A RU3763D RU3662A RU3568A RU-36NL RU3754B RU-36HM RU3560C RU3661A RU3563A RU3763SU RU4263C RU3461A RU-35DA RU4266A RU3762A RU3764B RU3877A RU3868C RU3671A RU4266C RU3663A RU4072A RU4382A RU4270A http://www.fdk.co.jp A 11.200.2 16.600.4 20.300.5 28.700.5 25.650.4 27.300.4 30.500.5 30.400.5 30.400.5 35.500.5 34.500.5 31.500.4 32.000.4 37.100.5 34.300.5 36.100.5 39.750.5 37.000.6 36.600.5 36.200.5 35.000.5 36.150.5 37.000.5 35.250.5 35.050.5 35.800.5 35.400.5 37.000.4 42.050.5 33.500.4 35.400.5 41.850.5 36.900.5 37.300.5 38.300.5 38.000.5 35.850.5 42.350.5 36.400.5 40.000.5 43.000.5 42.350.6 B 08.050.10 13.600.30 13.600.50 26.500.20 09.700.30 24.500.30 31.350.20 30.000.25 27.000.30 29.300.30 30.300.30 30.500.30 29.000.30 30.800.30 32.300.30 27.200.30 34.000.25 34.950.30 31.500.30 30.900.30 33.800.30 24.600.30 27.000.30 34.300.50 30.300.30 30.500.30 31.500.30 31.500.30 31.500.30 30.500.30 27.500.30 32.600.30 31.100.30 31.800.30 38.900.30 34.200.30 35.550.25 33.000.30 31.500.30 36.100.30 41.000.30 35.000.30 C 04.000.10 06.000.20 08.000.30 08.600.20 09.500.30 10.000.20 10.000.20 10.000.25 10.000.30 11.000.30 11.000.30 11.000.30 11.400.30 11.500.30 12.000.25 12.000.30 12.000.30 12.000.30 12.000.30 12.000.30 12.500.30 12.500.30 12.500.30 12.700.20 12.700.30 13.000.25 13.000.25 13.000.25 13.000.30 13.000.30 13.000.30 13.000.30 13.000.30 13.000.30 13.000.30 13.000.30 13.500.30 14.000.30 14.000.30 14.000.30 14.000.30 14.000.30 Dimensions (mm) D nom. 12.50 13.00 15.00 06.80 03.90 17.10 08.15 18.15 18.15 09.00 08.70 07.50 08.20 10.25 08.00 09.30 09.00 08.40 09.90 09.40 08.50 08.00 07.85 09.30 09.30 10.50 10.00 08.50 10.70 08.50 10.00 10.70 10.20 09.70 10.70 10.70 08.90 11.10 10.10 11.50 11.50 11.10 E min. 04.50 07.30 07.00 12.80 11.75 09.80 11.70 11.70 11.75 15.20 14.30 12.60 12.00 14.85 14.00 14.30 18.25 16.00 14.20 14.30 13.50 15.15 16.15 13.20 13.05 12.00 11.90 15.00 17.85 11.60 11.90 17.65 13.20 14.10 14.10 13.80 12.95 16.65 11.80 14.10 17.00 16.65 F 05.500.21 10.650.15 08.600.30 19.300.20 05.700.31 17.300.31 22.850.25 21.600.25 18.600.31 20.300.31 21.300.31 20.500.31 19.200.30 21.000.31 23.300.25 17.700.31 25.000.25 24.550.31 21.700.31 21.500.31 23.800.31 16.600.31 18.600.31 24.000.51 20.000.31 20.000.25 21.500.21 21.500.25 20.800.31 20.500.31 17.500.31 21.900.31 20.900.31 22.100.31 28.400.31 23.500.31 25.400.25 21.500.31 21.400.31 24.300.31 30.000.31 23.500.31 H 05.000.20 10.000.30 10.000.30 08.600.20 17.800.30 10.000.20 10.000.20 10.000.20 10.300.30 11.000.30 11.000.30 11.000.30 11.400.30 11.500.30 12.000.25 12.000.30 12.000.30 12.000.30 12.000.30 12.000.30 12.500.30 12.500.30 12.500.30 12.700.20 12.700.30 13.000.25 13.000.30 13.000.25 13.000.30 13.000.30 13.000.30 13.000.30 13.000.30 13.000.30 13.000.30 13.000.30 13.500.30 14.000.30 14.000.30 14.000.30 14.000.30 14.000.30 12 RU type Shape code RU1116A RU1728A RU2027A RU2953A RU-26 RU2749A RU-30DB RU3060B RU3054A RU3659A RU3561A RU3261A RU3258B RU3762B RU3465A RU3654A RU4068A RU3770A RU3763D RU3662A RU3568A RU-36NL RU3754B RU-36HM RU3560C RU3661A RU3563A RU3763SU RU4263C RU3461A RU-35DA RU4266A RU3762A RU3764B RU3877A RU3868C RU3671A RU4266C RU3663A RU4072A RU4382A RU4270A http://www.fdk.co.jp Ae (mm2) 12.30 28.20 49.50 58.20 70.00 70.40 78.50 77.00 81.10 92.90 95.15 89.46 89.40 106.00 104.60 108.00 104.80 108.90 112.40 111.70 112.00 100.00 104.00 120.00 120.00 130.50 128.00 118.20 133.00 116.20 128.00 132.00 133.00 119.00 132.00 132.00 126.00 155.10 140.80 156.00 150.00 155.00 Core constant le (mm) 040.6 069.0 067.1 128.8 062.2 113.8 143.5 138.3 126.3 142.3 144.4 136.7 131.0 147.0 150.9 131.9 167.7 162.7 148.8 147.2 154.3 124.8 135.6 151.6 138.9 138.9 145.0 148.2 156.1 137.2 129.0 159.3 145.2 150.0 177.9 158.0 161.1 158.3 144.5 162.7 192.0 166.3 Ve (mm3) 00499 01950 03320 07500 04350 08010 11300 10600 10240 13220 13740 12230 11700 15580 15780 14250 17570 17720 16730 16440 17300 12500 14200 18700 16670 18130 18560 17520 20800 15900 16500 21000 19300 17900 23500 20900 20300 24550 20350 25400 28800 25800 Core weight (g/set) 002.50 010.00 017.30 036.70 022.90 040.40 054.60 052.00 050.90 065.70 069.70 063.40 061.20 078.90 079.50 071.40 087.60 090.90 080.00 092.60 087.00 063.70 073.00 093.60 084.00 092.00 092.90 091.70 102.00 084.00 083.40 107.00 097.00 090.00 116.00 103.00 102.00 121.90 103.00 126.00 141.00 128.00 13 RU type D C H A E F B RU-42MS RU-40C RU3866Z RU3864B RU4168A RU-40DA RU3763E RU4280A RU4058A RU4676A RU4279A RU4375B RU4066A RU-41E RU4173A RU4174A RU4067C RU4567B RU-46MA RU4573A RU-42G RU4570A RU-49A RU4373A RU4370A RU4776A RU4582A RU-43D RU4478A RU4569A RU4677A RU-51MS RU4676C RU-46D RU4661A RU4879A http://www.fdk.co.jp 42.750.50 40.000.50 38.500.50 37.500.50 40.800.50 40.050.50 36.750.40 42.300.50 39.800.50 46.000.80 42.000.50 42.800.50 40.000.50 41.600.50 41.500.50 40.700.50 40.250.50 44.500.50 46.000.60 45.400.50 42.400.50 44.500.50 48.500.60 43.200.50 43.100.50 46.550.50 45.600.50 43.400.50 44.150.50 45.100.50 45.850.50 50.700.65 45.500.60 46.300.50 45.600.50 48.400.60 31.500.3 30.200.3 32.800.3 32.100.5 34.000.3 31.100.3 31.500.3 40.400.3 29.200.3 38.000.3 39.450.3 37.550.3 33.000.3 37.000.3 36.500.3 36.800.3 33.600.3 33.250.3 36.650.3 36.500.3 36.000.3 35.000.3 38.300.3 36.600.3 35.100.3 38.000.3 41.000.3 38.000.3 38.750.3 34.700.3 38.550.3 38.550.3 38.200.3 38.000.3 30.500.3 39.300.3 14.000.3 14.000.3 14.000.3 14.000.3 14.500.3 14.500.3 14.500.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.500.3 16.000.3 16.000.3 16.000.3 16.500.3 16.500.3 16.500.3 16.500.3 16.500.3 16.700.3 16.700.3 16.700.3 17.000.3 17.000.3 17.500.3 18.000.3 11.50 11.50 10.50 10.50 12.20 11.50 09.50 11.80 11.50 12.00 11.00 11.80 11.50 11.80 11.50 18.70 10.40 11.50 12.00 11.40 12.50 12.00 13.00 12.00 12.50 12.80 12.80 12.80 11.40 13.10 13.80 13.80 13.00 13.30 13.00 14.50 16.75 14.10 13.50 12.70 13.80 13.55 12.40 15.00 12.80 18.50 15.50 15.50 13.20 14.30 14.50 16.50 14.35 17.60 18.40 18.40 13.90 16.00 18.90 14.40 13.70 16.80 15.90 13.70 15.75 14.80 14.80 19.55 14.90 15.50 14.60 15.50 20.000.3 18.400.3 21.700.3 21.300.3 22.000.3 20.100.3 20.500.3 28.400.3 17.700.3 26.000.3 27.450.3 25.550.3 21.500.3 25.000.3 25.000.3 27.500.3 24.000.3 21.600.3 24.550.3 25.100.3 23.200.3 22.800.3 25.000.3 24.600.3 24.000.3 25.000.3 28.000.3 25.000.3 27.500.3 21.600.3 24.550.3 24.550.3 25.200.3 25.000.3 17.500.3 24.500.3 14.000.3 14.000.3 14.000.3 14.000.2 14.500.3 14.500.3 14.500.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 15.000.3 16.500.3 15.000.3 15.000.3 15.000.3 15.000.3 15.500.3 16.000.3 16.000.3 16.000.3 16.500.3 16.500.3 16.500.3 16.500.3 16.500.3 16.700.3 16.700.3 16.700.3 17.000.3 25.000.3 17.500.3 18.000.3 14 RU type RU-42MS RU-40C RU3866Z RU3864B RU4168A RU-40DA RU3763E RU4280A RU4058A RU4676A RU4279A RU4375B RU4066A RU-41E RU4173A RU4174A RU4067C RU4567B RU-46MA RU4573A RU-42G RU4570A RU-49A RU4373A RU4370A RU4776A RU4582A RU-43D RU4478A RU4569A RU4677A RU-51MS RU4676C RU-46D RU4661A RU4879A http://www.fdk.co.jp 154.00 156.00 146.00 143.00 164.00 159.00 148.10 172.00 172.50 170.00 168.00 172.90 132.00 173.00 172.00 155.00 167.90 165.00 172.00 173.00 190.00 188.00 196.00 188.00 199.70 205.00 206.00 207.00 194.00 216.00 219.00 219.00 222.00 217.00 223.00 260.00 152.6 140.3 151.2 146.6 156.2 146.1 142.7 184.4 136.2 181.9 180.9 174.0 159.3 169.5 168.9 175.9 161.0 161.2 175.6 177.0 163.7 165.0 195.2 169.3 164.3 177.8 187.9 171.5 181.4 159.5 174.5 184.0 175.7 176.0 145.0 178.5 23500 21900 22100 21000 25600 23200 21130 31700 23490 30900 30400 30090 21000 29300 29100 27300 27030 26600 30200 30600 31100 31000 38300 31800 32810 36400 38700 35500 35200 34500 38200 40300 39000 38200 32340 46400 119.00 109.00 110.00 105.00 127.00 116.00 109.10 158.00 120.00 152.00 152.00 149.70 128.00 147.00 137.00 138.00 133.50 135.00 150.00 152.00 153.00 156.00 181.00 161.00 164.70 181.00 193.00 178.00 175.00 175.00 188.00 198.00 198.00 191.00 161.00 225.00 15 ROTARY TRANSFORMERS In VCRs, high-frequency video signals are recorded on, and replayed from a magnetic tape by a highspeed revolving drum equipped with a magnetic head. The rotary transformer is fitted onto this revolving drum to transmit the high-frequency signals without distortion from the rotor to the stator. The use of rotary transformers is now extending to DAT (digital audio tape), DVC (digital video camera) and D-VHS. Contents Page Standard characteristics and product list of FDK rotary transformers ....17 Naming of rotary transformer models ...............................................17 Standard materials for rotary transformer ferrite cores .....................18 Working mechanism of rotary transformers ......................................18 Electric circuits of rotary transformers ...............................................18 2-channel rotary transformers for console VCR ................................19 4-channel rotary transformers for console VCR ................................19 6-channel rotary transformers for console VCR (Hi-Fi) .....................20 7-channel rotary transformers for console VCR (S-VHS) .................20 8-channel rotary transformers for console VCR (D-VHS) .................21 Disk-shaped 5-channel rotary transformers for camcorder VCR (VHS-C) ...21 2-channel rotary transformers for DVC .............................................22 4-channel rotary transformers for DAT ..............................................22 http://www.fdk.co.jp 16 Standard characteristics and product list of FDK rotary transformers Taking full advantage of its long experience as an integrated ferrite maker, FDK selects only the most suitable ferrite materials for rotary transformers. FDK rotary transformers incorporate cores with an outstanding dimensional precision backed by sophisticated processing and production technologies. FDK's high quality rotary transformers are mass-produced in overseas factories. Applications Upon the request of customers, FDK promptly designs and produces test sample products. * FDK's product development and design services for customers are aided by a supercomputer simulation system to ensure that the exact needs of each customer are fully met. Specification No. of channels Model type Standard 2CH RTA2525R/S-2A type Standard 4CH RTA2929R/S-4A type Hi-Fi 6CH RTA3636R/S-6A type S-VHS 7CH RTA4040R/S-7A type Standard D-VHS 8CH RTA5656R/S-8A type NORMAL 5CH RTA3838R/S-5A type DVC 2CH RTA1818R/S-2A type DDS 4CH RTA2626R/S-4A type Console VCR Camcorder VCR DAT Naming of rotary transformer models Naming of core models Naming of assembled models RT 36 08 R-6 A RT A 36 36 R-6 A Rev. Rev. No. of channels No. of channels Rotor (S:C: stator common to rotor and stator ) Inner diameter http://www.fdk.co.jp Rotor (S: stator) Outer diameter of stator Outer diameter of rotor Outer diameter Assembly Rotary transformer Rotary transformer 17 Standard materials for rotary transformer ferrite cores Characteristic Unit L52H L52R L52S L52M Initial permeability iac -- 500 690 1200 1900 Coercivity Hc A/m 24 32 32 16 AC temperature coefficient r x10-6 3~10 3~10 4~12 3~8 Resistivity *cm >108 >108 >108 >108 Bs mT 280 310 310 300 Br mT 130 110 160 120 Curie temperature Tc C >130 >130 >130 >110 Range frequency f Hz 1K~10M 1K~10M 1K~10M 1K~10M Saturation magnetic flux density Residual magnetic flux density Working mechanism of rotary transformers Rotary transformers are designed to transmit electric signals from a rotating body to a fixed body, or from a fixed body to a rotating body. In this regards, (a) it is not possible to use lead wires to transmit electric signals between a rotating and a fixed body; (b) although theoretically possible, if a spring and brush used in motors are applied to this task, noise problems will arise due to the very weak signals and a very high MHz-level frequency involved. Consequently, a rotary transformer was created, which could transmit magnetic fields generated between a rotor and a stator, through a ferrite material (see righthand diagram). In this diagram, the performance of the magnetic circuit depends almost totally on the precision of the air gap. In conventional VCRs, the air gap is set between 30m and 50m. Cross section of rotary transformer (to head) Magnetic circuit Rotor Coil Air gap Stator (to VCR) Electric circuits of rotary transformers The righthand diagram shows the electric circuit of a revolving magnetic head drum for VCRs, and each VCR incorporates as many electric circuits of this type as needed to match the number of television channels. These electric circuits have the following characteristics: q If the coupling coefficient is 1, the power on the rotor side and the power on the stator side are considered equal. w The ratio of the voltages applied to the both ends of the rotary transformer is identical to the winding ratio. e The values shown in the righthand diagram were measured when the VCR was in the recording mode. The values would be even smaller for the replay mode. r The voltage, current and power values shown in the righthand diagram vary somewhat, depending on the frequencies and models of rotary transformers involved. Electric circuit diagram Winding ratio of rotary transformer 1:n (nomally 1:2) 1H EH L2 150V 1H n 150Vxn 3W Magnetic head http://www.fdk.co.jp L1 20mA Rotary transformer Amplifier 18 2-channel rotary transformers for console VCR Shape example (RTA2525R/S-2A type) These are standard rotary transformers for 2-channel video recording and replay. Stator side transformer Rotor side transformer Features A high quality and a low price made possible by advanced technologies. Characteristics CH-1 CH-2 CH-1 X Channel Combinational inductance Leakage inductance 1 60H 2.1H 2 63H 3.2H Coupling coefficient Note 0.98 gap=38m 0.97 f=1.0MHz 0 Y CH-2 24.80.2 8.30.10 24.80.2 8.30.1 A B B 1.850.01 1.850.01 A Unit=mm 4-channel rotary transformers for console VCR Shape example (RTA 2929R/S-4A type) These are standard rotary transformers for 4-channel video recording and replay. Stator side transformer Rotor side transformer Features Stable characteristics ensured by the use of high-quality ferrites. CH-4 CH-3 Characteristics X CH-2 CH-4 0 Y CH-3 CH-1 CH-1 Channel Combinational inductance Leakage inductance Coupling coefficient 1 27H 1.8H 0.96 2 27H 2.2H 3 27H 2.5H 0.96 gap=38m 0.95 f=1.0MHz 4 27H 2.7H 0.95 Note CH-2 28.80.25 8.30.10 28.80.25 8.30.10 B B http://www.fdk.co.jp 1.850.01 A 1.850.01 A Unit=mm 19 6-channel rotary transformers for console VCR (Hi-Fi) Shape example (RTA 3131R/S-6A type) Rotor side transformer CH-4 Features A stable signal transmission throughout a low to high (several KHz to several MHz) frequency range due to the use of high-quality ferrites. Stator side transformer CH-3 CH-3 CH-1 CH-5 CH-6 CH-2 CH-4 CH-5 CH-6 Characteristics Channel Combinational inductance Leakage inductance Coupling coefficient 1 21H 1.8H 0.96 2 21H 2.0H 0.95 3 21H 2.2H 4 21H 2.4H 0.95 gap=30m 0.94 f=1.0MHz 5 31H 3.3H 0.95 6 31H 3.3H 0.95 Note CH-2 CH-1 30.60.15 8.270.07 B 1.850.01 A 1.850.01 A 30.60.15 8.270.07 B Unit=mm 7-channel rotary transformers for console VCR (S-VHS) Shape example (RTA 4040R/S-7A type) Rotor side transformer Features Improved characteristics obtained by the use of a high-performance ferrite with a high permeability and a low loss. Stator side transformer CH-1 CH-3 CH-5 CH-7 CH-6 CH-7 Self-resonance frequency raised to near the 10 MHz level. Characteristics CH-6 Channel Combinational inductance Leakage inductance Coupling coefficient 1 23H 3.1H 0.93 2 23H 3.1H 0.93 3 23H 3.1H 0.93 CH-3 4 23H 3.1H 0.93 CH-2 0 Y X CH-5 CH-2 CH-4 5 40H 5.0H 0.93 CH-1 6 45H 0.9H 0.90 CH-4 7 40H 5.0H 0.93 Note gap=38m f=1.0MHz 39.60.20 8.270.07 39.60.20 8.270.07 http://www.fdk.co.jp 1.850.01 1.850.01 A Unit=mm 20 8-channel rotary transformers for console VCR (D-VHS) Shape example (RTA 5656R/S-8A type) Rotor side transformer CH-2 Features Stable transmission characteristics achieved in the low to high range (several kHz to several MHz) by using high-quality ferrites. Stator side transformer CH-7 CH-8 CH-7 CH-3 CH-2 CH-4 CH-1 0 Y Minimized inter-channel variation of characteristics. Characteristics X CH-5 CH-4 CH-5 CH-6 CH-6 CH-3 CH-8 Dimensional accuracy enhanced by applying advanced processing techniques. CH-1 Channel Combinational inductance Leakage inductance Coupling coefficient Note 1 2 3 4 5 6 7 8 24H 24H 31H 31H 31H 31H 45H 45H 2.5H 2.5H 4.0H 4.0H 4.0H 4.0H 4.5H 4.5H 0.94 0.94 0.93 0.93 0.93 0.93 0.95 0.95 gap=50m f=1.0MHz 56 0-0.15 0 56 -0.15 18 +0.15 +0.05 0 2.7-0.04 0 2.7-0.04 18 +0.15 +0.05 Unit=mm Disk-Shaped 5-channel rotary transformers for camcorder VCR (VHS-C) Shape example (RTA3131R/S-5A type) Features Rotor side transformer S.R CH-3 CH-5 CH-3 CH-2 Use of strongly magnetic ferrite materials suitable for high-precision grinding work to carve channel grooves. Stator side transformer CH-1 CH-2 Suitable for compact, lightweight camcorders. Characteristics X CH-4 CH-5 0 Channel Combinational inductance Leakage inductance Coupling coefficient 1 27H 2.3H 0.96 2 29H 2.6H 0.95 3 29H 2.6H Note 4 27H 2.9H gap=30m 0.95 f=1.0MHz 0.94 5 3.5H 0.6H 0.91 CH-4 CH-1 Y 30.60.21 30.60.21 +0.2 9.5 +0 9.5 +0 +0.2 A 1.50.01 1.50.01 A Unit=mm http://www.fdk.co.jp 21 2-channel rotary transformers for DVC Shape example (RTA1818R/S-2A type) Rotor side transformer Features High performance and quality achieved by using low-loss, high-permeability and highresistivity ferrites. Stator side transformer High-precision, lightweight and compact transformers to match DVC. CH-2 CH-2 Characteristics Y 0 X Channel Combinational inductance Leakage inductance 1 4.5H 0.3H 2 4.5H 0.3H Coupling coefficient Note 0.97 gap=30m 0.97 f=1.0MHz CH-1 CH-1 18.30.13 18.30.13 70.05 70.05 A 1.20.01 1.20.01 A Unit=mm 4-channel rotary transformers for DAT Shape example (RTA2626R/S-4A type) Features Stator side transformer Rotor side transformer CH-3 CH-4 A high performance and a high quality obtained by the use of low-loss, high-permeability and high-resistivity ferrite materials. Light, compact rotary transformers with precision dimensions matching the delicate shapes of R-DAT recorders. CH-3 CH-2 CH-1 Y 0 X CH-2 CH-1 CH-4 26.20.10 26.20.10 9.15 -0.04 +0.05 A C A 1.40.01 1.40.01 CH-4 S.R CH-3 CH-2 CH-1 +0.05 CH-1 CH-2 CH-3 S.R CH-4 9.15 -0.04 B Unit=mm http://www.fdk.co.jp 22 FDK Web Site Electronics sales Div. 5-36-11, Shinbashi, Minato-ku, Tokyo 105-8677, Japan (Hamagomu Bldg.) TEL: (81)-3-5473-4683 FAX: (81)-3-3431-9436 U.S.A. FDK AMERICA, INC. CORPORATE OFFICE 2270 North First Street, San Jose, California 95131-2022, U.S.A. TEL: (1)-408-432-8331 FAX: (1)-408-435-7478 FDK AMERICA, INC. BOSTON OFFICE 411 Waverly Oaks Road, Suite 324, Waltham, Massachusetts 02452-8437, U.S.A. TEL: (1)-781-899-7700 FAX: (1)-781-899-7701 FDK AMERICA, INC. SAN DIEGO OFFICE 6540 Lusk Blvd Suite C274 San Diego, California 92121-2766, U.S.A. TEL: (1)-858-558-8368 FAX: (1)-858-558-6005 Europe FDK ELECTRONICS GMBH Heerdter Lohweg 89, 40549 Dusseldorf, Germany TEL: (49)-211-591574 FAX: (49)-211-593549 FDK ELECTRONICS UK LIMITED Suite 4C Celect House 12A Fairbairn Road, Kirkton North Livingston EH54 6TS, Scotland, United Kingdom TEL: (44)-1506-467981 FAX: (44)-1506-467982 Asia FDK HONG KONG LTD. Unit 18. 15/F., Chevalier Commercial Centre, 8 Wang Hoi Road, Kowloon Bay, Hong Kong TEL: (852)-27999773 FAX: (852)-27554635 FDK SINGAPORE PTE., LTD. 4, Leng Kee Road, #06-07/08 SiS Building, Singapore. 159088, Republic of Singapore TEL: (65)-472-2328 FAX: (65)-472-5761 For improvement of its products, FDK reserves the right to change specifications without prior notice to customers.