Features Applications Formerly model Signal processing Current rating up to 3 A Telecommunications Inductance range: 0.1 H to 100,000 H Dense board designs Shielded RoHS compliant* 8250 Series - Shielded RF Choke Electrical Speci cations ( 25 C) General Speci cations Temperature Rise ................35 C at Idc Test SRF DCR Rated Current ........Inductance drop 5 % Part Inductance Freq. (MHz) ( ) Idc Isat typical at Isat Number ( H) 10 % Q Min. (MHz) Min. max. (mA) (mA) Operating Temperature 8250-R10K-RC 0.10 50 25 400 0.026 3000 3000 ................................-55 C to +105 C 8250-R12K-RC 0.12 50 25 400 0.029 2860 2860 Storage Temperature 8250-R15K-RC 0.15 50 25 400 0.034 2600 2600 ................................-55 C to +105 C 8250-R18K-RC 0.18 50 25 400 0.044 2300 2300 8250-R22K-RC 0.22 50 25 400 0.056 2050 2050 Materials 8250-R27K-RC 0.27 50 25 400 0.090 1625 1625 Core Material ................................Ferrite 8250-R33K-RC 0.33 47 25 325 0.122 1400 1400 Wire ...........................Enameled copper 8250-R39K-RC 0.39 47 25 390 0.161 1220 1220 Terminal Coating.................................Sn 8250-R47K-RC 0.47 47 25 264 0.218 1060 1060 Packaging 8250-R56K-RC 0.56 45 25 249 0.290 900 900 8250-R68K-RC 0.68 43 25 221 0.382 790 790 Standard ...................... 500 pcs. per bag 8250-R82K-RC 0.82 41 25 200 0.450 725 725 Optional ........ 2500 pcs. per 14-inch reel 8250-1R0K-RC 1.0 42 25 156 0.054 2080 2080 Product Dimensions 8250-1R2K-RC 1.2 43 7.9 144 0.070 1840 1840 8250-1R5K-RC 1.5 41 7.9 128 0.096 1560 1560 25.4 11.43 8250-1R8K-RC 1.8 42 7.9 121 0.107 1480 1480 (1.0) (0.45) 8250-2R2K-RC 2.2 42 7.9 108 0.142 1290 1290 MIN. MAX. 8250-2R7K-RC 2.7 41 7.9 96 0.284 1130 1130 8250-3R3K-RC 3.3 41 7.9 88 0.260 950 950 0.51 4.17 (0.02) 8250-3R9K-RC 3.9 41 7.9 84 0.354 815 815 (0.164) 8250-4R7K-RC 4.7 42 7.9 72 0.168 710 710 MAX. MM DIMENSIONS: 8250-5R6K-RC 5.6 42 7.9 69 0.511 680 680 (INCHES) 8250-6R8K-RC 6.8 42 7.9 62 0.750 560 560 8250-8R2K-RC 8.2 46 7.9 58 0.828 535 535 Electrical Schematic 8250-100K-RC 10 46 7.9 53 1.270 532 532 8250-120K-RC 12 50 2.5 47 1.760 368 368 8250-150K-RC 15 50 2.5 41 2.300 325 325 8250-180K-RC 18 50 2.5 43 0.677 596 235 How To Order 8250-220K-RC 22 50 2.5 38 0.742 565 220 8250-270K-RC 27 50 2.5 36 0.850 526 200 8250 - 101K - - RC 8250-330K-RC 33 50 2.5 33 0.928 505 190 Model 8250-390K-RC 39 50 2.5 29.4 1.28 429 180 Value Code (see table) 8250-470K-RC 47 55 2.5 26.5 1.48 400 175 8250-560K-RC 56 55 2.5 25 1.64 380 160 Packaging Code Blank = 500 pcs. per bag 8250-680K-RC 68 55 2.5 23 2.20 328 150 TR = 2500 pcs. per reel 8250-820K-RC 82 55 2.5 14 1.96 349 140 Compliance Code 8250-101K-RC 100 65 2.5 12 2.28 322 120 RC = RoHS Compliant 8250-121K-RC 120 65 0.79 11.2 2.45 311 95 Examples: 8250-151K-RC 150 65 0.79 10.5 2.79 294 90 8250-151K-RC = 150 H, packaged 500 pcs. 8250-181K-RC 180 65 0.79 10.0 3.08 277 85 per bag 8250-221K-RC 220 65 0.79 9.4 3.48 251 80 8250-R39K-TR-RC = 0.39 H, packaged 2500 8250-271K-RC 270 65 0.79 8.0 4.55 231 70 pcs. per 14-inch reel 8250-331K-RC 330 65 0.79 7.3 5.10 215 65 8250-391K-RC 390 65 0.79 6.9 5.62 205 60 8250-471K-RC 470 70 0.79 6.5 6.45 192 58 8250-561K-RC 560 70 0.79 6.0 8.00 174 55 8250-681K-RC 680 75 0.79 5.6 8.85 163 50 ~ Continued on page 2 ~ *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specications are subject to change without notice. Users should verify actual device performance in their WARNING Cancer and Reproductive Harm specific applications. The products described herein and this document are subject to specic legal disclaimers last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. www.P65Warnings.ca.gov as set forth on the *RoHS COMPLIANT 8250 Series - Shielded RF Choke Electrical Speci cations ( 25 C) - Continued Test SRF DCR Part Inductance Freq. (MHz) ( ) Idc Isat Number ( H) 10 % Q Min. (MHz) Min. max. (mA) (mA) 8250-821K-RC 820 70 0.79 4.8 10.4 151 45 8250-102K-RC 1000 65 0.79 4.5 12.1 139 40 8250-122K-RC 1200 70 0.25 2.6 15.1 125 35 8250-152K-RC 1500 70 0.25 2.5 16.8 119 33 8250-182K-RC 1800 70 0.25 2.3 19.1 111 30 8250-222K-RC 2200 70 0.25 2.2 22.0 103 27 8250-272K-RC 2700 70 0.25 2.1 25.1 97 25 8250-332K-RC 3300 70 0.25 2 33.3 85 22 8250-392K-RC 3900 70 0.25 1.8 36.8 80 20 8250-472K-RC 4700 70 0.25 1.7 51.2 68 19 8250-562K-RC 5600 70 0.25 1.6 54.6 66 17 8250-682K-RC 6800 70 0.25 1.5 62 62 16 8250-822K-RC 8200 70 0.25 1.4 86.6 52 15 8250-103K-RC 10,000 70 0.25 1.3 93.1 50 14 8250-123K-RC 12,000 50 0.079 0.88 84 53 13 8250-153K-RC 15,000 50 0.079 0.78 97 49 12 8250-183K-RC 18,000 50 0.079 0.72 104 48 10 8250-223K-RC 22,000 50 0.079 0.57 145 40 9 8250-273K-RC 27,000 50 0.079 0.46 195 34 8 8250-333K-RC 33,000 50 0.079 0.42 222 32 7.5 8250-393K-RC 39,000 50 0.079 0.42 242 31 6 8250-473K-RC 47,000 50 0.079 0.37 317 27 5.5 8250-563K-RC 56,000 50 0.079 0.36 362 25 5 8250-683K-RC 68,000 50 0.079 0.35 410 24 4 8250-823K-RC 82,000 50 0.079 0.34 440 23 3.5 8250-104K-RC 100,000 50 0.079 0.32 484 22 3 Typical Part Marking - MIL-STD Color Code 1st & 2nd Example for L value less than 10 H Signi cant Figure 6.8 H, 10 % Color or Decimal Point Multiplier Tolerance Mil. identi er (Silver, twice the width of other bands) Black 0 1 1st signi cant gure (Blue) Brown 1 10 Decimal point (Gold) Red 2 100 2nd signi cant gure (Gray) Orange 3 1000 Tolerance (Silver) Yellow 4 Green 5 Example for L value 10 H and higher Blue 6 270 H, 5 % Violet 7 Mil. identi er (Silver, twice the width of other bands) Gray 8 1st signi cant gure (Red) White 9 2nd signi cant gure (Purple) Silver 10 % Multiplier (Brown) Gold Decimal Point 5 % Tolerance (Gold) REV. 02/09 Specications are subject to change without notice. Users should verify actual device performance in their specic applications. The products described herein and this document are subject to specic legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.