Varnished Chokes
70F S eries
Special Features
Test SRF DCR Dim. Dim.
High Q, high self-resonant
Part L (H) Q Freq. I, DC* A B Core
Number 20 % (MHz) Max. (mA) Max 0.03 Material
frequency
70F107AP-RC 0.10 49 25 600 0.13 3922 0.15 0.31 Phenolic
High voltage application on phenolic
70F157AP-RC 0.15 52 25 490 0.25 2828 0.14 0.31 Phenolic
and ferrite components
70F227AP-RC 0.22 48 25 400 0.38 2294 0.14 0.31 Phenolic
Universal wound
70F337AP-RC 0.33 47 25 330 0.70 1690 0.12 0.31 Phenolic
Low cost
70F477AP-RC 0.47 46 25 280 0.125 1264 0.12 0.31 Phenolic
Varnish coated 70F687AP-RC 0.68 48 25 240 0.20 1000 0.12 0.31 Phenolic
70F757AP-RC 0.75 48 25 224 0.264 870 0.12 0.31 Phenolic
Operating temperature:
70F827AP-RC 0.82 48 25 216 0.29 830 0.12 0.31 Phenolic
phenolic -55 to +125 C;
70F106AI-RC 1.0 41 25 118 0.048 2041 0.16 0.25 Iron
iron, ferrite -55 to +105 C
10 %
70F126AI-RC 1.2 45 7.9 118 0.072 1666 0.16 0.25 Iron
Notes 70F156AI-RC 1.5 42 7.9 102 0.096 1443 0.16 0.25 Iron
70F186AI-RC 1.8 31 7.9 89 0.096 1443 0.16 0.25 Iron
* Current to cause 35 C max. temperature rise
70F226AI-RC 2.2 43 7.9 87 0.156 1132 0.16 0.25 Iron
70F276AI-RC 2.7 34 7.9 74 0.168 1091 0.16 0.25 Iron
70F336AI-RC 3.3 40 7.9 66 0.24 912 0.15 0.25 Iron
RoHS Directive 2002/95/EC Jan 27 2003
70F396AI-RC 3.9 35 7.9 61 0.264 870 0.15 0.25 Iron
including Annex.
70F476AI-RC 4.7 43 7.9 53 0.457 661 0.15 0.25 Iron
70F566AI-RC 5.6 41 7.9 49 0.492 637 0.15 0.25 Iron
70F686AI-RC 6.8 40 7.9 49 0.624 566 0.15 0.25 Iron
70F756AI-RC 7.5 32 7.9 44 0.624 566 0.15 0.25 Iron
70F826AI-RC 8.2 37 7.9 41 0.744 518 0.15 0.25 Iron
70F916AI-RC 9.1 41 7.9 21 1.44 288 0.16 0.25 Iron
70F105AI-RC 10 36 7.9 19 1.56 277 0.16 0.25 Iron
70F125AI-RC 12 52 2.5 19 1.68 267 0.16 0.25 Iron
70F155AI-RC 15 52 2.5 16 1.92 250 0.16 0.25 Iron
1.25 B
5 %
70F185AI-RC 18 52 2.5 15 2.28 229 0.16 0.25 Iron
70F225AI-RC 22 51 2.5 13 2.28 229 0.16 0.25 Iron
A
70F255AI-RC 25 48 2.5 13 2.64 213 0.17 0.25 Iron
70F275AI-RC 27 49 2.5 12 2.64 213 0.17 0.25 Iron
Dia.
70F335AI-RC 33 50 2.5 10 2.76 208 0.17 0.25 Iron
0.025 for 0.1-22,000uh
70F395AI-RC 39 48 2.5 9.3 3.36 188 0.17 0.25 Iron
0.032 for 25,000-500,000uh
70F475AI-RC 47 44 2.5 9.1 3.36 188 0.17 0.25 Iron
70F565AI-RC 56 45 2.5 8.6 3.84 176 0.18 0.25 Iron
Dimensions: Inches
70F685AI-RC 68 42 2.5 8.1 4.2 169 0.18 0.25 Iron
70F755AI-RC 75 38 2.5 7.2 4.56 162 0.18 0.25 Iron
70F825AI-RC 82 41 2.5 6.7 4.8 158 0.18 0.25 Iron
70F915AI-RC 91 41 2.5 6.7 4.92 156 0.18 0.25 Iron
70F104AI-RC 100 25 2.5 3.6 7.68 139 0.16 0.25 Iron
70F124AI-RC 120 40 0.79 3.2 8.16 135 0.16 0.25 Iron
70F154AI-RC 150 47 0.79 3.0 8.16 135 0.16 0.25 Iron
70F184AI-RC 180 48 0.79 2.8 8.16 135 0.17 0.25 Iron
70F204AI-RC 200 47 0.79 2.7 10.3 120 0.17 0.25 Iron
70F224AI-RC 220 46 0.79 2.5 11.5 114 0.17 0.25 Iron
70F254AI-RC 250 49 0.79 2.5 12.1 111 0.17 0.25 Iron
70F274AI-RC 270 46 0.79 2.5 13.2 106 0.17 0.25 Iron
70F304AI-RC 300 46 0.79 2.2 13.2 106 0.17 0.25 Iron
70F334AI-RC 330 41 0.79 2.0 13.9 103 0.17 0.25 Iron
70F354AI-RC 350 46 0.79 2.0 14.4 102 0.18 0.25 Iron
-RC su x indicates RoHS compliance.
Continued next page.
Tel. (877) 426-8767 Fax (951) 781-5006
20.3
REV. 06/07 www.bourns.com
RoHS COMPLIANTVarnished Chokes
70F Series continued
Special Features
Test SRF DCR Dim. Dim.
High Q, high self-resonant
Part L (H) Q Freq. (MHz) I, DC* A B Core
Number 5 % Min. (MHz) Min. Max. (mA) Max 0.03 Material
frequency
70F394AI-RC 390 45 0.79 2.0 15.8 97 0.18 0.25 Iron
High voltage application on phenolic
70F474AI-RC 470 35 0.79 1.8 16.3 95 0.18 0.25 Iron
and ferrite components
70F504AI-RC 500 49 0.79 1.8 18.0 91 0.19 0.25 Iron
Universal wound
70F564AI-RC 560 41 0.79 1.7 19.2 88 0.19 0.25 Iron
Low cost
70F684AI-RC 680 37 0.79 1.6 19.8 87 0.2 0.25 Iron
Varnish coated 70F754AI-RC 750 40 0.79 1.6 22.9 80 0.21 0.25 Iron
70F824AI-RC 820 33 0.79 1.6 22.9 80 0.21 0.25 Iron
Operating temperature:
70F914AI-RC 910 32 0.79 1.4 24.0 79 0.22 0.25 Iron
phenolic -55 to +125 C;
70F103AI-RC 1000 30 0.79 1.4 24.0 79 0.22 0.25 Iron
iron, ferrite -55 to +105 C
70F123AI-RC 1200 34 0.25 1.2 33.6 66 0.22 0.25 Iron
70F153AI-RC 1500 40 0.25 1.1 37.2 63 0.22 0.25 Iron
Notes 70F183AI-RC 1800 40 0.25 0.96 42.0 59 0.23 0.25 Iron
70F223AI-RC 2200 40 0.25 0.96 45.6 57 0.24 0.25 Iron
* Current to cause 35 C max. temperature
70F253AI-RC 2500 48 0.25 0.96 45.6 57 0.26 0.38 Iron
rise
70F273AI-RC 2700 50 0.25 0.88 45.6 57 0.26 0.38 Iron
70F333AI-RC 3300 52 0.25 0.80 51.6 53 0.26 0.38 Iron
70F393AI-RC 3900 53 0.25 0.76 57.6 51 0.27 0.38 Iron
70F473AI-RC 4700 49 0.25 0.68 64.8 48 0.28 0.38 Iron
RoHS Directive 2002/95/EC Jan 27 2003
70F563AI-RC 5600 53 0.25 0.68 69.6 46 0.3 0.38 Iron
including Annex.
70F683AI-RC 6800 51 0.25 0.64 78 43 0.31 0.38 Iron
70F753AI-RC 7500 49 0.25 0.60 85.2 41 0.31 0.38 Iron
70F823AI-RC 8200 48 0.25 0.60 92.4 40 0.33 0.38 Iron
70F913AI-RC 9100 52 0.25 0.56 98.4 39 0.33 0.38 Iron
70F102AI-RC 10,000 41 0.25 0.52 101 38 0.33 0.38 Iron
70F122AI-RC 12,000 46 0.079 0.36 100 50 0.3 0.50 Iron
1.25 70F152AI-RC 15,000 50 0.079 0.32 113 47 0.3 0.50 Iron
B
70F182AI-RC 18,000 49 0.079 0.29 128 44 0.32 0.50 Iron
70F222AI-RC 22,000 50 0.079 0.27 144 41 0.33 0.50 Iron
A
70F252AF-RC 25,000 59 0.079 0.25 115 46 0.34 0.63 Ferrite
70F272AF-RC 27,000 61 0.079 0.244 120 45 0.35 0.63 Ferrite
Dia.
70F332AF-RC 33,000 61 0.079 0.232 134 43 0.35 0.63 Ferrite
0.025 for 0.1-22,000uh
70F392AF-RC 39,000 59 0.079 0.22 147 41 0.37 0.63 Ferrite
0.032 for 25,000-500,000uh
70F472AF-RC 47,000 57 0.079 0.206 168 38 0.38 0.63 Ferrite
70F502AF-RC 50,000 57 0.079 0.196 175 37 0.4 0.63 Ferrite
Dimensions: Inches
70F562AF-RC 56,000 57 0.079 0.188 189 36 0.4 0.63 Ferrite
70F682AF-RC 68,000 57 0.079 0.18 215 34 0.41 0.63 Ferrite
70F752AF-RC 75,000 53 0.079 0.174 222 33 0.43 0.63 Ferrite
70F822AF-RC 82,000 50 0.079 0.168 238 32 0.43 0.63 Ferrite
70F912AF-RC 91,000 51 0.079 0.166 250 31 0.43 0.63 Ferrite
70F101AF-RC 100,000 48 0.079 0.157 278 29 0.44 0.63 Ferrite
L tested
@ 1 KHz
70F121AF-RC 120,000 46 0.025 0.084 288 48 0.48 0.88 Ferrite
70F151AF-RC 150,000 49 0.025 0.077 328 44 0.50 0.88 Ferrite
70F181AF-RC 180,000 51 0.025 0.075 374 41 0.52 0.88 Ferrite
70F221AF-RC 220,000 51 0.025 0.07 424 39 0.54 0.88 Ferrite
70F251AF-RC 250,000 52 0.025 0.065 468 37 0.55 0.88 Ferrite
70F271AF-RC 270,000 53 0.025 0.062 490 36 0.57 0.88 Ferrite
70F331AF-RC 330,000 54 0.025 0.06 540 34 0.58 0.88 Ferrite
70F391AF-RC 390,000 54 0.025 0.056 617 33 0.6 0.88 Ferrite
70F471AF-RC 470,000 55 0.025 0.054 704 30 0.61 0.88 Ferrite
70F501AF-RC 500,000 53 0.025 0.052 736 30 0.63 0.88 Ferrite
-RC su x indicates RoHS compliance.
Tel. (877) 426-8767 Fax (951) 781-5006
20.4
REV. 06/07
www.bourns.com
RoHS COMPLIANT