PL
IA
N
T
Features
Formerly
model
Current rating up to 3 A
Inductance range: 0.1 µH to 100,000 µH
Shielded
■
RoHS compliant*
■
■
■
■
Applications
■
Signal processing
■
Telecommunications
■
Dense board designs
*R
oH
S
CO
M
8250 Series - Shielded RF Choke
Electrical Specifications (@ 25 °C)
Part
Number
8250-R10K-RC
8250-R12K-RC
8250-R15K-RC
8250-R18K-RC
8250-R22K-RC
8250-R27K-RC
8250-R33K-RC
8250-R39K-RC
8250-R47K-RC
8250-R56K-RC
8250-R68K-RC
8250-R82K-RC
8250-1R0K-RC
8250-1R2K-RC
8250-1R5K-RC
8250-1R8K-RC
8250-2R2K-RC
8250-2R7K-RC
8250-3R3K-RC
8250-3R9K-RC
8250-4R7K-RC
8250-5R6K-RC
8250-6R8K-RC
8250-8R2K-RC
8250-100K-RC
8250-120K-RC
8250-150K-RC
8250-180K-RC
8250-220K-RC
8250-270K-RC
8250-330K-RC
8250-390K-RC
8250-470K-RC
8250-560K-RC
8250-680K-RC
8250-820K-RC
8250-101K-RC
8250-121K-RC
8250-151K-RC
8250-181K-RC
8250-221K-RC
8250-271K-RC
8250-331K-RC
8250-391K-RC
8250-471K-RC
8250-561K-RC
8250-681K-RC
Inductance
(μH) ±10 %
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
Test
Freq.
(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
SRF
(MHz)
Min.
400
400
400
400
400
400
325
390
264
249
221
200
156
144
128
121
108
96
88
84
72
69
62
58
53
47
41
43
38
36
33
29.4
26.5
25
23
14
12
11.2
10.5
10.0
9.4
8.0
7.3
6.9
6.5
6.0
5.6
DCR
(Ω)
max.
0.026
0.029
0.034
0.044
0.056
0.090
0.122
0.161
0.218
0.290
0.382
0.450
0.054
0.070
0.096
0.107
0.142
0.284
0.260
0.354
0.168
0.511
0.750
0.828
1.270
1.760
2.300
0.677
0.742
0.850
0.928
1.28
1.48
1.64
2.20
1.96
2.28
2.45
2.79
3.08
3.48
4.55
5.10
5.62
6.45
8.00
8.85
Idc
(mA)
3000
2860
2600
2300
2050
1625
1400
1220
1060
900
790
725
2080
1840
1560
1480
1290
1130
950
815
710
680
560
535
532
368
325
596
565
526
505
429
400
380
328
349
322
311
294
277
251
231
215
205
192
174
163
Isat
(mA)
3000
2860
2600
2300
2050
1625
1400
1220
1060
900
790
725
2080
1840
1560
1480
1290
1130
950
815
710
680
560
535
532
368
325
235
220
200
190
180
175
160
150
140
120
95
90
85
80
70
65
60
58
55
50
General Specifications
Temperature Rise ................ 35 °C at Idc
Rated Current ........Inductance drop 5 %
typical at Isat
Operating Temperature
................................-55 °C to +105 °C
Storage Temperature
................................-55 °C to +105 °C
Materials
Core Material ................................Ferrite
Wire ...........................Enameled copper
Terminal Coating.................................Sn
Packaging
Standard ...................... 500 pcs. per bag
Optional ........ 2500 pcs. per 14-inch reel
Product Dimensions
25.4
(1.0)
MIN.
0.51
(0.02)
11.43
(0.45)
MAX.
Q Min.
50
50
50
50
50
50
47
47
47
45
43
41
42
43
41
42
42
41
41
41
42
42
42
46
46
50
50
50
50
50
50
50
55
55
55
55
65
65
65
65
65
65
65
65
70
70
75
4.17
(0.164)
MAX.
DIMENSIONS:
MM
(INCHES)
Electrical Schematic
How To Order
8250 - 101K - ___ - RC
Model
Value Code (see table)
Packaging Code
Blank = 500 pcs. per bag
TR = 2500 pcs. per reel
Compliance Code
RC = RoHS Compliant
Examples:
8250-151K-RC = 150
μH,
packaged 500 pcs.
per bag
8250-R39K-TR-RC = 0.39
μH,
packaged 2500
pcs. per 14-inch reel
~ Continued on page 2 ~
*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. Users should verify actual device performance in their
specific applications. The products described herein and this document are subject to specific legal disclaimers
as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
8250 Series - Shielded RF Choke
Electrical Specifications (@ 25 °C) - Continued
Part
Number
8250-821K-RC
8250-102K-RC
8250-122K-RC
8250-152K-RC
8250-182K-RC
8250-222K-RC
8250-272K-RC
8250-332K-RC
8250-392K-RC
8250-472K-RC
8250-562K-RC
8250-682K-RC
8250-822K-RC
8250-103K-RC
8250-123K-RC
8250-153K-RC
8250-183K-RC
8250-223K-RC
8250-273K-RC
8250-333K-RC
8250-393K-RC
8250-473K-RC
8250-563K-RC
8250-683K-RC
8250-823K-RC
8250-104K-RC
Inductance
(μH) ±10 %
820
1000
1200
1500
1800
2200
2700
3300
3900
4700
5600
6800
8200
10,000
12,000
15,000
18,000
22,000
27,000
33,000
39,000
47,000
56,000
68,000
82,000
100,000
Test
Freq.
(MHz)
0.79
0.79
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
SRF
(MHz)
Min.
4.8
4.5
2.6
2.5
2.3
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
0.88
0.78
0.72
0.57
0.46
0.42
0.42
0.37
0.36
0.35
0.34
0.32
DCR
(Ω)
max.
10.4
12.1
15.1
16.8
19.1
22.0
25.1
33.3
36.8
51.2
54.6
62
86.6
93.1
84
97
104
145
195
222
242
317
362
410
440
484
Idc
(mA)
151
139
125
119
111
103
97
85
80
68
66
62
52
50
53
49
48
40
34
32
31
27
25
24
23
22
Isat
(mA)
45
40
35
33
30
27
25
22
20
19
17
16
15
14
13
12
10
9
8
7.5
6
5.5
5
4
3.5
3
Q Min.
70
65
70
70
70
70
70
70
70
70
70
70
70
70
50
50
50
50
50
50
50
50
50
50
50
50
Typical Part Marking - MIL-STD Color Code
Color
1st & 2nd
Signifi cant Figure
or Decimal Point
Multiplier
Tolerance
Example for L value less than 10 µH
6.8 µH, ±10 %
Mil. identifi er (Silver, twice the width
of other bands)
1st signifi cant fi gure (Blue)
Decimal point (Gold)
2nd signifi cant fi gure (Gray)
Tolerance (Silver)
Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Silver
Gold
0
1
2
3
4
5
6
7
8
9
Decimal Point
1
10
100
1000
Example for L value 10 µH and higher
270 µH, ±5 %
Mil. identifi er (Silver, twice the width
of other bands)
1st signifi cant fi gure (Red)
2nd signifi cant fi gure (Purple)
Multiplier (Brown)
Tolerance (Gold)
± 10 %
±5%
REV. 02/09
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at
www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns
®
products manufactured by or on behalf of Bourns, Inc. and
Unless otherwise expressly indicated in writing, Bourns
®
products and data sheets relating thereto are subject to change
and complete before placing orders for Bourns
®
products.
The characteristics and parameters of a Bourns
®
product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns
®
®
product with other components
the actual performance of the Bourns
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®
®
product as meeting the requirements of a particular industry
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of Bourns products are responsible for ensuring compliance with safety-related requirements and standards applicable to
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Bourns
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standard products that are suitable for use in aircraft
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standard
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and the user for which such Bourns
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custom products shall be negotiated on a case-by-case basis by Bourns
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also apply to such Bourns custom products.
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