Features Applications
n Current rating up to 1.2 A n DC/DC converters
n Dielectric strength: 500 VRMS n Power supplies
n RoHS compliant* n General use
78F Series Conformal Coated RF Choke
General Specifications
Electrical Specifications (@ 25 C)
Temperature Rise .......................... 35 C
Test SRF DCR IDC
....................................at rated current
Q Frequency (MHz) () (mA)
Operating Temperature Range
Part Number Value (H) Min. (MHz) Min. Max. Max.
............................... -55 C to +105 C
78FR10K-RC 0.10 10 % 20 25 400 0.060 1200
(including temperature rise)
78FR12K-RC 0.12 10 % 20 25 400 0.070 1200
Storage Temperature Range
78FR15K-RC 0.15 10 % 20 25 380 0.070 1200
............................... -55 C to +105 C
78FR18K-RC 0.18 10 % 20 25 380 0.073 1150
Moisture Sensitivity Level ..................... 1
78FR22K-RC 0.22 10 % 40 25 380 0.075 1150
ESD Classification (HBM) ..................N/A
78FR27K-RC 0.27 10 % 40 25 360 0.085 1110
78FR33K-RC 0.33 10 % 40 25 335 0.095 1110
Materials
78FR39K-RC 0.39 10 % 40 25 310 0.10 1000
78FR47K-RC 0.47 10 % 40 25 270 0.11 1000 Core Material ..................Ferrite DR core
Wire ....................Enamelled copper wire
78FR56K-RC 0.56 10 % 40 25 245 0.12 950
Terminal ........................................ Cu/Sn
78FR68K-RC 0.68 10 % 40 25 230 0.13 900
Coating .................................Epoxy resin
78FR82K-RC 0.82 10 % 40 25 200 0.14 875
Packaging
78F1R0K-RC 1.0 10 % 40 25 180 0.15 815
Standard ................5000 pcs. per bag
78F1R2K-RC 1.2 10 % 40 7.9 165 0.18 740
Optional ..... 5000 pcs. per 14-inch reel
78F1R5K-RC 1.5 10 % 50 7.9 150 0.20 700
78F1R8K-RC 1.8 10 % 50 7.9 125 0.23 655
78F2R2K-RC 2.2 10 % 50 7.9 110 0.25 630
How to Order
78F2R7K-RC 2.7 10 % 50 7.9 95 0.28 595
78F 100 J __ - RC
78F3R3J-RC 3.3 5 % 50 7.9 60 0.30 575
Model
78F3R9J-RC 3.9 5 % 45 7.9 50 0.32 555
Value Code (see table)
78F4R7J-RC 4.7 5 % 45 7.9 38 0.35 530
Tolerance Code (see table)
78F5R6J-RC 5.6 5 % 45 7.9 32 0.40 500
Packaging
78F6R8J-RC 6.8 5 % 40 7.9 28 0.45 470
Blank = 5,000 pcs./bag
78F8R2J-RC 8.2 5 % 40 7.9 20 0.55 425
-TR = 5,000 pcs./14 reel
78F100J-RC 10 5 % 40 7.9 18 0.75 370
RoHS Compliant
78F120J-RC 12 5 % 45 2.5 16 0.80 350
Examples:
78F150J-RC 15 5 % 50 2.5 16 0.93 335
78F1R0K-RC = 1.0 mH Model 78F
packaged 5,000 pcs. per bag.
78F180J-RC 18 5 % 50 2.5 15 1.00 315
78F100J-TR-RC = 10 mH Model 78F
78F220J-RC 22 5 % 50 2.5 13 1.20 285
packaged 5,000 pcs. per reel.
78F270J-RC 27 5 % 50 2.5 11 1.35 270
78F330J-RC 33 5 % 50 2.5 10 1.50 255
78F390J-RC 39 5 % 50 2.5 9.50 1.70 240 Electrical Schematic
78F470J-RC 47 5 % 60 2.5 8.50 2.70 205
78F560J-RC 56 5 % 60 2.5 7.50 2.95 195
78F680J-RC 68 5 % 60 2.5 6.50 3.30 185
78F820J-RC 82 5 % 60 2.5 6.00 3.60 175
78F101J-RC 100 5 % 60 2.5 5.50 4.10 165
78F121J-RC 120 5 % 60 0.79 5.40 4.70 160
78F151J-RC 150 5 % 60 0.79 4.75 5.40 150
78F181J-RC 180 5 % 60 0.79 4.35 6.00 140
78F221J-RC 220 5 % 60 0.79 4.00 6.80 130
78F271J-RC 270 5 % 60 0.79 3.70 7.70 120
78F331J-RC 330 5 % 60 0.79 3.40 11.1 100
78F391J-RC 390 5 % 60 0.79 2.80 12.6 95
78F471J-RC 470 5 % 60 0.79 2.55 14.0 90
78F561J-RC 560 5 % 60 0.79 2.35 15.5 85
78F681J-RC 680 5 % 60 0.79 2.00 25.3 68
78F821J-RC 820 5 % 60 0.79 1.50 27.5 65
78F102J-RC 1000 5 % 60 0.79 1.20 31.4 60
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
*RoHS COMPLIANT
VERSIONS
AVAILABLE
*RoHS COMPLIANT
LEAD FREE
LEAD FREE
VERSIONS ARE
RoHS COMPLIANT*
78F Series Conformal Coated RF Choke
Typical Part Marking - EIA Color Code
Product Dimensions
1st & 2nd
2.79
MAX.
(0.11) 0.51
Significant
(0.020)
Color Figure Multiplier Tolerance
Silver 0.01 10 %
25.40 7.11 25.40
Gold 0.1 5 %
(1.0) (0.28) (1.0)
MIN. MAX. MIN.
Black 0 1
Brown 1 10
MM
Red 2 100
DIMENSIONS:
(INCHES)
Orange 3 1000
Yellow 4
Green 5
Blue 6
Violet 7
Gray 8
White 9
Example for 6.8 H, 5 %
1st signi cant gure (Blue)
2nd signi cant gure (Gray)
Multiplier (Gold)
Tolerance (Gold)
Example for 270 H, 5 %
1st signi cant gure (Red)
2nd signi cant gure (Purple)
Multiplier (Brown)
Tolerance (Gold)
REV. 08/17
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.