Document 108-2
No core
SRF min
DCR
max
Unshielded
Part
No core L2
ref (µH)
L min3
(µH)
L nom
(µH)
L max
(µH)
Irms5
number1
Color
Turns
Q min4 (MHz) (mOhm)
(A)
144-01J12
144-02J12
144-03J12
144-04J12
144-05J12
Brown
Red
Orange
Yellow
Green
1½
2½
3½
4½
5½
0.053
0.075
0.099
0.126
0.154
0.056
0.079
0.104
0.132
0.162
0.059
0.088
0.123
0.164
0.207
0.062
0.098
0.142
0.195
0.252
140
145
147
150
154
1800
1150
900
765
670
7.4
8.6
9.7
10.9
12.1
11.0
10.0
9.6
9.0
8.6
144-06J12
144-07J12
144-08J12
144-09J12
144-10J12
Blue
Violet
Gray
White
Black
6½
7½
8½
9½
10½
0.182
0.214
0.245
0.274
0.307
0.193
0.240
0.283
0.328
0.391
0.250
0.298
0.344
0.387
0.442
0.306
0.356
0.405
0.446
0.493
154
158
160
162
162
610
525
465
420
390
13.6
14.7
15.9
17.1
18.5
8.1
7.8
7.5
7.2
7.0
142-01J08
142-02J08
142-03J08
142-04J08
142-05J08
Brown
Red
Orange
Yellow
Green
1½
2½
3½
4½
5½
0.063
0.092
0.127
0.166
0.212
0.063
0.093
0.133
0.174
0.226
0.065
0.100
0.145
0.196
0.256
0.068
0.107
0.157
0.218
0.287
115
118
120
125
122
980
600
470
420
370
7.4
8.4
9.6
10.8
11.9
13.4
12.5
11.8
11.1
10.5
142-06J08
142-07J08
142-08J08
142-09J08
142-10J08
Blue
Violet
Gray
White
Black
6½
7½
8½
9½
10½
0.258
0.307
0.357
0.412
0.464
0.275
0.330
0.396
0.473
0.550
0.315
0.378
0.450
0.520
0.592
0.355
0.427
0.504
0.567
0.635
112
112
106
110
104
340
310
290
270
260
13.2
14.5
15.7
16.9
18.0
10.0
9.6
9.2
8.9
8.6
143-09J12
143-10J12
143-11J12
143-12J12
143-13J12
143-14J12
White
Black
Brown
Red
Orange
Yellow
9½
10½
11½
12½
13½
14½
0.385
0.438
0.490
0.545
0.600
0.645
0.404
0.460
0.515
0.578
0.673
0.726
0.550
0.624
0.708
0.764
0.845
0.908
0.693
0.788
0.900
0.950
1.02
86
90
78
84
84
82
280
270
260
250
245
240
16.7
17.9
19.2
20.5
21.7
22.8
7.3
7.1
6.8
6.6
6.4
6.3
1.09
143-15J12
143-16J12
143-17J12
143-18J12
143-19J12
143-20J12
Green
Blue
Violet
Gray
White
Black
15½
16½
17½
18½
19½
20½
0.692
0.765
0.830
0.895
0.910
0.960
0.803
0.891
1.01
1.10
1.20
1.30
0.978
1.08
1.18
1.25
1.32
1.40
1.15
1.27
1.34
1.40
1.44
1.50
90
74
74
92
98
92
230
225
215
195
190
185
23.9
25.2
26.4
27.6
28.9
30.0
6.1
6.0
5.8
5.7
5.6
5.5
No core
SRF min
DCR
max
Shielded
Part
No core L2
ref (µH)
L min3
(µH)
L nom
(µH)
L max
(µH)
Irms5
number1
Color
Turns
Q min4 (MHz) (mOhm)
(A)
144-01J12S
144-02J12S
144-03J12S
144-04J12S
144-05J12S
Brown
Red
Orange
Yellow
Green
1½
2½
3½
4½
5½
0.050
0.067
0.088
0.106
0.126
0.052
0.070
0.092
0.111
0.132
0.053
0.074
0.099
0.122
0.149
0.054
0.078
0.106
0.133
0.165
97
98
98
100
101
2200
1200
920
790
685
7.4
8.6
9.7
10.9
12.1
11.0
10.0
9.6
9.0
8.6
144-06J12S
144-07J12S
144-08J12S
144-09J12S
144-10J12S
Blue
Violet
Gray
White
Black
6½
7½
8½
9½
10½
0.147
0.168
0.190
0.210
0.232
0.154
0.176
0.202
0.239
0.270
0.175
0.200
0.226
0.256
0.282
0.196
0.223
0.250
0.274
0.295
106
104
108
108
106
625
530
480
435
420
13.6
14.7
15.9
17.1
18.5
8.1
7.8
7.5
7.2
7.0
1. To order fixed inductance parts
without cores, eliminate the “J08” or
“J12”, e.g. 144-01 or 144-01S.
2. Inductance and Q readings taken
on Boonton 260-A Q meter with
16 AWG tinned copper 1/2″ long
soldered along leads and bent at
90° 1/4″ down from standoffs.
142-01J08S
142-02J08S
142-03J08S
142-04J08S
142-05J08S
Brown
Red
Orange
Yellow
Green
1½
2½
3½
4½
5½
0.058
0.081
0.110
0.140
0.174
0.058
0.084
0.115
0.147
0.182
0.0595
0.086
0.120
0.156
0.197
0.061
0.089
0.121
0.160
0.205
82
83
85
88
94
1230
650
550
460
410
7.4
8.4
9.6
10.8
11.9
13.4
12.5
11.8
11.1
10.5
All inductance values greater
than 0.1 µH read at recommended
Q meter frequency; those below
0.1 µH calculated from readings
taken at 50 MHz.
3. L min measured with core halfway
out top of form.
4. Q min measured at L nom at
40 MHz.
5. Average current for a 40°C rise
above 25°C ambient.
142-06J08S
142-07J08S
142-08J08S
142-09J08S
142-10J08S
Blue
Violet
Gray
White
Black
6½
7½
8½
9½
10½
0.210
0.247
0.284
0.319
0.357
0.220
0.259
0.299
0.338
0.382
0.240
0.280
0.322
0.363
0.410
0.248
0.290
0.337
0.377
0.422
94
90
86
88
82
370
330
320
310
290
13.2
14.5
15.7
16.9
18.0
10.0
9.6
9.2
8.9
8.6
143-09J12S
143-10J12S
143-11J12S
143-12J12S
143-13J12S
143-14J12S
143-15J12S
143-16J12S
143-17J12S
143-18J12S
143-19J12S
143-20J12S
White
Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
Black
9½
10½
11½
12½
13½
14½
15½
16½
17½
18½
19½
20½
0.300
0.338
0.377
0.412
0.452
0.490
0.522
0.575
0.612
0.650
0.675
0.715
0.315
0.355
0.396
0.433
0.475
0.515
0.583
0.638
0.693
0.754
0.792
0.847
0.369
0.416
0.468
0.509
0.556
0.604
0.660
0.720
0.770
0.814
0.846
0.896
0.423
0.477
0.540
0.585
0.637
0.693
0.738
0.801
0.846
0.874
0.900
0.945
80
82
78
80
80
78
80
76
76
82
80
74
303
290
270
265
265
260
250
245
240
215
210
200
16.7
17.9
19.2
20.5
21.7
22.8
23.9
25.2
26.4
27.6
28.9
30.0
7.3
7.1
6.8
6.6
6.4
6.3
6.1
6.0
5.8
5.7
5.6
5.5
6. Core material: Carbonyl J
Core length: 142 Series - 1/4″
143, 144 Series - 3/8″
7. Taps available on 144 series parts
at 1/8, 3/8, 5/8 and 7/8 turn increments.
8. Operating temperature range
−40°C to +85°C.
9. Electrical specifications at 25°C.
Specifications subject to change without notice.
Please check our website for latest information.
Document108-2 Revised01/03/05
© Coilcraft, Inc. 2005
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