Features
Applications
■ DC/DC converters
■ Power supplies
■ General use
■ Current rating up to 1.2 A
■ Dielectric strength: 500 VRMS
■ RoHS compliant*
78F Series Conformal Coated RF Choke
General Specifications
Electrical Specifications (@ 25 °C)
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
Test
Frequency
(MHz)
SRF
(MHz)
Min.
DCR
(Ω)
Max.
IDC
(mA)
Max.
Q
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 ꢀ
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
25
25
25
25
25
25
25
25
25
25
25
25
25
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
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
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
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
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
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.
12 5 ꢀ
15 5 ꢀ
18 5 ꢀ
22 5 ꢀ
27 5 ꢀ
33 5 ꢀ
39 5 ꢀ
47 5 ꢀ
16
15
13
11
Electrical Schematic
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
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 ꢀ
90
85
68
65
60
*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.