PL IA NT CO M *R oH S Features Applications ■ Current rating up to 1.2 A ■ DC/DC converters ■ Dielectric strength: 500 VRMS ■ Power supplies ■ RoHS compliant* ■ General use 78F Series Conformal Coated RF Choke Electrical Specifications (@ 25 °C) Part Number 78FR10K-RC 78FR12K-RC 78FR15K-RC 78FR18K-RC 78FR22K-RC 78FR27K-RC 78FR33K-RC 78FR39K-RC 78FR47K-RC 78FR56K-RC 78FR68K-RC 78FR82K-RC 78F1R0K-RC 78F1R2K-RC 78F1R5K-RC 78F1R8K-RC 78F2R2K-RC 78F2R7K-RC 78F3R3J-RC 78F3R9J-RC 78F4R7J-RC 78F5R6J-RC 78F6R8J-RC 78F8R2J-RC 78F100J-RC 78F120J-RC 78F150J-RC 78F180J-RC 78F220J-RC 78F270J-RC 78F330J-RC 78F390J-RC 78F470J-RC 78F560J-RC 78F680J-RC 78F820J-RC 78F101J-RC 78F121J-RC 78F151J-RC 78F181J-RC 78F221J-RC 78F271J-RC 78F331J-RC 78F391J-RC 78F471J-RC 78F561J-RC 78F681J-RC 78F821J-RC 78F102J-RC Value (μH) 0.10 ±10 % 0.12 ±10 % 0.15 ±10 % 0.18 ±10 % 0.22 ±10 % 0.27 ±10 % 0.33 ±10 % 0.39 ±10 % 0.47 ±10 % 0.56 ±10 % 0.68 ±10 % 0.82 ±10 % 1.0 ±10 % 1.2 ±10 % 1.5 ±10 % 1.8 ±10 % 2.2 ±10 % 2.7 ±10 % 3.3 ±5 % 3.9 ±5 % 4.7 ±5 % 5.6 ±5 % 6.8 ±5 % 8.2 ±5 % 10 ±5 % 12 ±5 % 15 ±5 % 18 ±5 % 22 ±5 % 27 ±5 % 33 ±5 % 39 ±5 % 47 ±5 % 56 ±5 % 68 ±5 % 82 ±5 % 100 ±5 % 120 ±5 % 150 ±5 % 180 ±5 % 220 ±5 % 270 ±5 % 330 ±5 % 390 ±5 % 470 ±5 % 560 ±5 % 680 ±5 % 820 ±5 % 1000 ±5 % Q Min. 20 20 20 20 40 40 40 40 40 40 40 40 40 40 50 50 50 50 50 45 45 45 40 40 40 45 50 50 50 50 50 50 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 60 Test Frequency (MHz) 25 25 25 25 25 25 25 25 25 25 25 25 25 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 0.79 SRF (MHz) Min. 400 400 380 380 380 360 335 310 270 245 230 200 180 165 150 125 110 95 60 50 38 32 28 20 18 16 16 15 13 11 10 9.50 8.50 7.50 6.50 6.00 5.50 5.40 4.75 4.35 4.00 3.70 3.40 2.80 2.55 2.35 2.00 1.50 1.20 *RoHS Directive 2002/95/EC Jan 27, 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. DCR (Ω) Max. 0.060 0.070 0.070 0.073 0.075 0.085 0.095 0.10 0.11 0.12 0.13 0.14 0.15 0.18 0.20 0.23 0.25 0.28 0.30 0.32 0.35 0.40 0.45 0.55 0.75 0.80 0.93 1.00 1.20 1.35 1.50 1.70 2.70 2.95 3.30 3.60 4.10 4.70 5.40 6.00 6.80 7.70 11.1 12.6 14.0 15.5 25.3 27.5 31.4 IDC (mA) Max. 1200 1200 1200 1150 1150 1110 1110 1000 1000 950 900 875 815 740 700 655 630 595 575 555 530 500 470 425 370 350 335 315 285 270 255 240 205 195 185 175 165 160 150 140 130 120 100 95 90 85 68 65 60 General Specifications Temperature Rise .......................... 35 °C ....................................at rated current Operating Temperature Range ............................... -55 °C to +105 °C (including temperature rise) Storage Temperature Range ............................... -55 °C to +105 °C Materials Core Material .................. Ferrite DR core Wire ....................Enamelled copper wire Terminal ....................................Cu/Ni/Sn Coating .................................Epoxy resin Packaging Standard ................ 5000 pcs. per bag Optional..... 5000 pcs. per 14-inch reel How to Order 78F 100 J __ - RC Model Value Code (see table) Tolerance Code (see table) Packaging Blank = 5,000 pcs./bag -TR = 5,000 pcs./14” reel RoHS Compliant Examples: • 78F1R0K-RC = 1.0 mH Model 78F packaged 5,000 pcs. per bag. • 78F100J-TR-RC = 10 mH Model 78F packaged 5,000 pcs. per reel. Electrical Schematic 78F Series Conformal Coated RF Choke Typical Part Marking - EIA Color Code Product Dimensions 2.79 MAX. (0.11) 25.40 (1.0) MIN. 0.51 (0.020) 7.11 (0.28) MAX. DIMENSIONS: MM (INCHES) 25.40 (1.0) MIN. 1st & 2nd Significant Multiplier Color Figure Silver Gold Black Brown Red Orange Yellow Green Blue Violet Gray White 0 1 2 3 4 5 6 7 8 9 Tolerance 0.01 0.1 1 10 100 1000 ±10 % ±5 % Example for 6.8 µH, ±5 % 1st signifi cant fi gure (Blue) 2nd signifi cant fi gure (Gray) Multiplier (Gold) Tolerance (Gold) Example for 270 µH, ±5 % 1st signifi cant fi gure (Red) 2nd signifi cant fi gure (Purple) Multiplier (Brown) Tolerance (Gold) REV. 10/11 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.