K, R, S, V & X Series
R. F. Molded Chokes
1.438"
±0.188
36.525mm
±4.77
L
This product has been
DISCONTINUED
D
(Color coded in accordance with MIL-C-15305.)
Series Construction
Inductance
Style
Grade/
Class
Max.
oper.
temp.
Max.
Dielectric
temp. Ambient
withstanding voltage
Terminal
rise
temp. (sea level) (reduced pressure) pull Altitude
Series
K
R
S
V
X
Dimensions (in. /
mm)
Length
Diameter
0.375 ± 0.010 0.156 ± 0.010
9.525 ± 0.25 3.962 ± 0.25
0.438 ± 0.010 0.188 ±0.010
11.125 ± 0.25 4.775 ± 0.25
0.440 ± 0.010 0.190 ± 0.010
4.917 ± 0.25 4.826 ± 0.25
0.560 ± 0.010 0.215 ± 0.010
14.224 ± 0.25 5.461 ± 0.25
0.740 ± 0.010 0.240 ± 0.010
18.796 ± 0.25 6.096 ± 0.25
AWG
22
22
22
22
20
K
R
S, V
&X
Phenolic
0.15–4.7 µH LT4
Powd. iron
0.56–1000 µH LT10
Phenolic
0.15–2.7 µH LT4
Powd. iron
3.3–27 µH LT10
270–
LT10
10,000 µH
1/B
1/A
1/B
1/A
1/A
125°C
105°C
125°C
105°C
105°C
35°C 90°C
15°C
"
35°C 90°C
15°C
"
15°C 90°C
1000VRMS 200VRMS
"
"
1000VRMS 200VRMS
"
"
700VRMS 180VRMS
5 lbs. 70,000 ft.
"
"
5 lbs. 70,000 ft.
"
"
5 lbs. 70,000 ft.
STOCK PART NUMBERS
Test frequency
(L & Q, MHz)
Test frequency
(L & Q, MHz)
Test frequency
(L & Q, MHz)
MS part
designation*
MS part
designation*
MS part
designation*
Rated DC
current (mA)
Rated DC
current (mA)
Inductance*
(µH)
Inductance*
(µH)
Inductance*
(µH)
Rated DC
current (mA)
370
310
255
240
205
110
107
105
102
100
97
95
93
91
88
85
83
81
79
78
78
76
75
72
70
68
67
66
64
62
61
58
57
61
59
58
57
56
54
52
51
50
49
47
DCR max.
(Ω)
DCR max.
(Ω)
KM150M
KM220M
KM330M
KM470M
KM560K
KM680K
KM820K
KM101K
KM121K
KM151K
KM181K
KM221K
KM271K
KM331K
KM391K
KM471K
KM561K
KM681K
KM821K
KM102K
KM122K
KM152K
KM182K
KM222K
KM272K
KM332K
KM362J
KM392J
KM432J
KM472J
KM512J
KM562J
KM622J
KM682J
KM752J
KM822J
KM912J
18130–
–
1
0.15
–
2
0.22
–
3
0.33
–
4
0.47
–
5
0.56
–
6
0.68
–
7
0.82
–
8
1.00
–
9
1.20
–
10
1.50
–
11
1.80
–
12
2.20
–
13
2.70
–
14
3.30
–
15
3.90
–
16
4.70
14046–
–
1
5.60
–
2
6.80
–
3
8.20
–
4
10.00
–
5
12.00
–
6
15.00
–
7
18.00
–
8
22.00
–
9
27.00
–
10
33.00
90538–
–
1
36.00
–
2
39.00
–
3
43.00
–
4
47.00
–
5
51.00
–
6
56.00
–
7
62.0
–
8
68.0
–
9
75.0
–
10
82.0
–
11
91.0
50
50
45
45
50
50
50
50
33
33
33
33
33
33
33
33
45
50
50
55
65
65
75
75
60
65
60
60
60
55
55
55
55
55
55
50
50
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
2.5
2.5
2.5
2.5
2.5
525
450
360
310
280
250
220
200
180
160
150
135
120
110
100
90
60
55
50
45
42
40
34
30
25
19
15.5
14.5
13.7
13.0
12.7
12.0
11.5
11.0
10.5
10.3
10.0
0.03
0.055
0.09
0.12
0.135
0.15
0.22
0.29
0.42
0.50
0.65
0.95
1.20
2.00
2.30
2.60
0.32
0.50
0.60
0.90
1.10
1.40
2.25
2.50
2.60
3.00
2.50
2.60
2.70
2.75
2.85
3.00
3.15
3.30
3.70
3.90
4.3
2450
1900
1400
1225
1220
1100
900
830
650
600
525
435
385
300
280
260
495
395
360
290
265
240
185
175
170
165
180
176
172
170
167
164
160
156
147
143
136
* For example, the MS designation for
KM150M is 18130-1
** Letter suffix on part number denotes toler-
ance: J=5%, K=10%, M=20%
90538–
–
12 100.0
–
13 110.0
–
14 120.0
–
15 130.0
–
16 150.0
–
17 160.0
–
18 180.0
–
19 200.0
–
20 220.0
–
21 240.0
270.0
300.0
330.0
360.0
390.0
430.0
470.0
510.0
560.0
620.0
680.0
750.0
820.0
910.0
1000.0
MS75008–
RM150M
–
21
0.15
RM220M
–
22
0.22
RM330M
–
23
0.33
RM470M
–
24
0.47
RM560K
–
25
0.56
RM680K
–
26
0.68
RM820K
–
27
0.82
RM101K
–
28
1.00
RM121K
–
29
1.20
RM151K
–
30
1.50
RM181K
–
31
1.80
RM221K
–
32
2.20
RM271K
–
33
2.70
MS75101–
RM331K
–
1
3.30
RM391K
–
2
3.90
RM471K
–
3
4.70
RM561K
–
4
5.60
RM681K
–
5
6.80
RM821K
–
6
8.20
RM102K
–
7
10.00
KM103J
KM113J
KM123J
KM133J
KM153J
KM163J
KM183J
KM203J
KM223J
KM243J
KM273J
KM303J
KM333J
KM363J
KM393J
KM433J
KM473J
KM513J
KM563J
KM623J
KM683J
KM753J
KM823J
KM913J
KM104J
50
60
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
55
50
50
50
50
45
40
40
30
30
30
30
30
30
30
30
30
30
30
30
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
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
9.5
8.9
8.7
8.5
8.0
7.5
7.0
6.5
6.2
5.9
5.7
5.4
5.1
4.8
4.5
4.2
3.9
3.8
3.7
3.3
3.1
2.9
2.7
2.5
2.3
510
415
350
300
270
250
210
200
180
170
150
140
120
70
65
60
50
50
48
42
4.50
4.90
5.20
5.45
6.05
6.40
6.75
7.10
7.45
7.80
11.0
11.5
12.0
12.5
16.3
17.1
17.9
18.8
19.5
25.9
27.2
28.6
30.0
31.5
33.0
0.030
0.035
0.065
0.085
0.125
0.150
0.205
0.290
0.400
0.485
0.740
0.970
1.20
0.140
0.155
0.210
0.280
0.375
0.440
0.605
133
128
124
121
114
111
108
106
103
101
85
83
81
80
70
68
67
65
64
55
54
53
52
50
49
3000
2800
2000
1700
1450
1300
1100
930
785
700
580
505
460
990
870
745
645
560
540
440
MS75101–
RM122K
–
8
12.00
RM152K
–
9
15.00
RM182K
–
10
18.00
RM222K
–
11
22.00
RM272K
–
12
27.00
MS90539–
SM273J
–
1
270
SM303J
–
2
300
SM333J
–
3
330
SM363J
–
4
360
SM393J
–
5
390
SM433J
–
6
430
SM473J
–
7
470
SM513J
–
8
510
SM563J
–
9
560
SM623J
–
10
620
SM683J
–
11
680
SM753J
–
12
750
SM823J
–
13
820
SM913J
–
14
910
SM104J
–
15
1000
MS90540–
VM114J
–
1
1100
–
2
1200
VM124J
VM134J
–
3
1300
VM154J
–
4
1500
VM164J
–
5
1600
VM184J
–
6
1800
VM204J
–
7
2000
VM224J
–
8
2200
VM244J
–
9
2400
VM274J
–
10
2700
VM304J
–
11
3000
VM334J
–
12
3300
VM364J
–
13
3600
MS90541–
XM394J
–
1
3900
XM434J
–
2
4300
XM474J
–
3
4700
XM504J
–
4
5000
XM564J
–
5
5600
XM624J
–
6
6200
XM684J
–
7
6800
XM754J
–
8
7500
XM824J
–
9
8200
XM914J
–
10
9100
XM105J
–
11 10000
50
55
60
60
65
65
65
65
65
65
65
65
65
65
60
60
60
60
60
60
60
60
60
65
65
65
65
70
70
70
70
70
70
80
80
80
80
80
80
80
80
80
80
80
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
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
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
36
30
30
24
22
5.6
5.3
5.0
4.7
4.5
4.3
4.0
3.8
3.6
3.5
3.4
3.3
3.1
2.9
2.8
2.8
2.7
2.6
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
0.95
80
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
DCR max.
(Ω)
1.05
1.20
1.95
2.20
2.75
8.2
8.7
9.1
9.6
10.0
10.6
11.1
11.6
12.3
13.0
13.7
14.4
15.1
15.8
16.5
21.0
22.0
23.0
25.0
26.0
28.0
29.0
30.0
31.0
33.0
35.0
38.0
40.0
44.0
46.0
48.0
50.0
53.0
56.0
59.0
62.0
65.0
68.0
72.0
SRF min.
(MHz)
SRF min.
(MHz)
SRF min.
(MHz)
Part
number
Part
number
Part
number
Q min.
Q min.
Q min.
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