Q Series
R. F. Shielded Chokes
1.438"
±0.188
36.525mm
±4.77
22 AWG
(Color coded in accordance with MIL-C-15305.)
0.410"
±0.020
10.414mm
±0.51
0.162"
±0.010
4.115mm
±0.25
Max.
Grade/ oper.
Series Inductance
Style Class temp.
Q
0.10–10,000 µH LT10
1/A
105°C
Max.
temp.
rise
15°C
Dielectric
Ambient
withstanding voltage
Terminal
Coupling
temp. (sea level) (reduced pressure)
pull
Altitude
max.
Weight
90°C 1000VRMS
200VRMS
5 lbs. 70,000 ft.
3% 0.750 g or less
STOCK PART NUMBERS
Test frequency
(L & Q, MHz)
Test frequency
(L & Q, MHz)
Test frequency
(L & Q, MHz)
Rated DC cur-
rent (mA)
Rated DC
current (mA)
MS part
designation
MS part
designation
Inductance
(µH) ±10%
Inductance
(µH) ±10%
Inductance
(µH) ±10%
Rated DC cur-
rent (mA)
125
115
110
105
92
90
80
80
70
60
55
50
50
40
40
35
31
28
27
26
24
MS part
designation
DCR max.
(Ω)
DCR max.
(Ω)
SRF min.
(MHz)
SRF min.
(MHz)
Part
number
Part
number
Q min.
Q min.
QS100K
QS120K
QS150K
QS180K
QS220K
QS270K
QS330K
QS390K
QS470K
QS560K
QS680K
QS820K
MS75087–
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
MS75088–
QS101K
–1
QS121K
–2
QS151K
–3
QS181K
–4
QS221K
–5
QS271K
–6
QS331K
–7
QS391K
–8
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1.00
1.20
1.50
1.80
2.20
2.70
3.30
3.90
50
51
51
50
49
47
46
44
44
43
42
40
44
44
44
44
44
44
44
44
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
250
250
250
250
250
250
250
250
235
210
190
180
140
130
115
105
100
92
85
75
0.025
0.034
0.037
0.047
0.067
0.11
0.13
0.18
0.25
0.33
0.45
0.59
0.07
0.10
0.12
0.14
0.19
0.28
0.35
0.40
1790
1530
1470
1300
1100
855
780
670
565
490
420
370
1070
895
815
775
650
535
480
450
MS75088–
–9
4.70
–10
5.60
–11
6.80
–12
8.20
–13
10.0
–14
12.0
MS75089–
QS152K
–1
15.0
QS182K
–2
18.0
QS222K
–3
22.0
QS272K
–4
27.0
QS332K
–5
33.0
QS392K
–6
39.0
QS472K
–7
47.0
QS562K
–8
56.0
QS682K
–9
68.0
QS822K
–10
82.0
QS103K
–11
100.0
QS123K
–12
120.0
QS153K
–13
150.0
QS183K
–14
180.0
QS471K
QS561K
QS681K
QS821K
QS102K
QS122K
44
44
50
50
50
55
45
45
45
45
45
50
50
50
50
50
50
55
55
55
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
70
65
55
50
46
44
49
45
41
38
34
29
27
25
21
10.5
10.0
9.7
8.5
8.0
0.55
0.72
1.02
1.32
1.62
2.00
0.80
0.89
0.96
1.19
1.37
1.93
2.11
2.23
2.70
2.44
3.12
3.60
4.10
4.40
380
335
280
250
220
200
315
300
290
260
240
205
195
190
170
180
160
150
140
135
QS223K
QS273K
QS333K
QS393K
QS473K
QS563K
QS683K
QS823K
QS104K
Q5124K
QS154K
QS184K
QS224K
QS274K
QS334K
QS394K
QS474K
QS564K
QS684K
QS824K
QS105K
MS75089–
–15
220.0
–16
270.0
–17
330.0
–18
390.0
–19
470.0
–20
560.0
–21
680.0
–22
820.0
–23
1000
–24
1200
–25
1500
–26
1800
–27
2200
–28
2700
–29
3300
–30
3900
–31
4700
–32
5600
–33
6800
–34
8200
–35
10000
55
55
55
60
60
60
60
60
60
45
45
45
45
45
45
45
45
44
40
40
40
0.79
0.79
0.79
0.79
0.79
0.79
0.79
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
7.5
7.0
6.5
6.2
5.7
4.7
4.5
4.2
3.8
1.5
1.2
1.0
0.97
0.92
0.84
0.80
0.74
0.73
0.66
0.54
0.47
5.00
5.80
6.40
7.40
9.50
10.5
11.8
13.0
17.5
22.1
26.5
29.9
33.8
47.3
53.0
73.8
81.6
98.9
111.0
119.0
137.0
DCR max.
(Ω)
SRF min.
(MHz)
Part
number
Q min.
Ohmite Mfg. Co.
1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 • Tel. 1-866-9-OHMITE • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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