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Molded Coils
MC138
Space Wound
Frequency Range: 30MHz~250MHz(1)
Inductance Range: 0.03~0.24µH
Temperature Coefficient: 150ppm/°C, max.
TYPE
MC138
7.4Max.
14Max. 3.1
4.5
0.5
(Unit: mm)
Features
Similar to MC122 except that form is designed to
accommodate a single space-wound coil with tap to
achieve higher inductance and Q, and also wider tuning
range.
Shield case available.
SELECTION GUIDE FOR STANDARD COILS
(1) Alternate use of an aluminum core with listed items will increase the
usable frequency range of any specific coil form. However, inductance is
reduced. These cores may also be substituted for ferrite as a means of
lowering Q.
(2) Inductance values for reference only.
TYPE MC138
TOKO
Part
Winding
Number
Aluminum Core
E544ANAS-100031
E544ANAS-100032
E544ANAS-100033
E544ANAS-100034
E544ANAS-100035
E544ANAS-100036
E544ANAS-100037
E544ANAS-100038
11/2
21/2
31/2
41/2
51/2
61/2
71/2
81/2
E544AN-100041
E544AN-100042
E544AN-100043
E544AN-100044
E544AN-100045
E544AN-100046
E544AN-100047
E544AN-100048
11/2
21/2
31/2
41/2
51/2
61/2
71/2
81/2
Ferrite core (30~200MHz)
E544ENAS-100011 11/2
E544ENAS-100012 21/2
E544ENAS-100013 31/2
E544ENAS-100014 41/2
E544ENAS-100015 51/2
E544ENAS-100016 61/2
E544ENAS-100017 71/2
E544ENAS-100018 81/2
E544EN-100021
E544EN-100022
E544EN-100023
E544EN-100024
E544EN-100025
E544EN-100026
E544EN-100027
E544EN-100028
11/2
21/2
31/2
41/2
51/2
61/2
71/2
81/2
Color
Code
White
Red
Orange
Yellow
Green
Blue
Violet
Grey
White
Red
Orange
Yellow
Green
Blue
Violet
Grey
White
Red
Orange
Yellow
Green
Blue
Violet
Grey
White
Red
Orange
Yellow
Green
Blue
Violet
Grey
Inductance(2)
(µH)
0.027
0.037
0.048
0.061
0.074
0.087
0.102
0.117
0.028
0.042
0.056
0.072
0.089
0.108
0.122
0.147
0.030
0.044
0.060
0.078
0.096
0.120
0.140
0.160
0.031
0.053
0.077
0.104
0.135
0.160
0.200
0.240
Q
min.
70
70
70
70
70
70
70
70
70
80
80
80
80
80
75
75
80
80
80
80
80
80
80
80
90
110
125
130
130
130
130
130
Test
Frequency
(MHz)
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
Tuning
Capacitance
Range (pF)
93.5 ± 1%
68.0 ± 2%
52.3 ± 3%
41.5 ± 5%
34.0 ± 5%
28.9 ± 5%
24.7 ± 5%
21.6 ± 4%
88.1 ± 1%
60.0 ± 4%
45.0 ± 6%
35.0 ± 8%
28.2 ± 8%
23.3 ± 8%
20.7 ± 4%
17.2 ± 4%
84.8 ± 2%
57.3 ± 5%
41.7 ± 6%
32.5 ± 6%
26.2 ± 7%
21.7 ± 7%
18.5 ± 7%
15.8 ± 6%
76.5 ± 5%
47.3 ± 8%
32.8 ± 12%
24.2 ± 12%
18.7 ± 12%
15.2 ± 12%
12.5 ± 12%
10.4 ± 10%
Shield
Case
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No