142/143/144

Document 108-1
10 mm Tunable Coils – 142, 143, 144
These Coilcraft variable inductors are precision molded in
plastic to ensure constant winding pitch and a consistent
relationship to the printed circuit board.
Extremely economical, even in small quantities, the coils
come in standard inductance values from 0.05 µH to
1.5 µH. 144 Series parts are also available with a tap to
meet specific requirements.
Tuning is done by means of a threaded powdered iron core
with a hex socket for easy, positive adjustment. Plated brass
shield cans with solderable tabs are optional.
These parts can be ordered without cores for use as
fixed inductors.
Coilcraft Designer’s Kit M302 contains samples of all
standard 10 mm and 7 mm tunable inductors. To order,
contact Coilcraft or visit http://order.coilcraft.com to
purchase on-line.
IN 1
TRITUNER 3 TOOLS
SEE INDEX
TUNING WRENCH
Unshielded Styles
0.380 ±0.005 square
9,65 ±0,13
0.470 ±0.020
11,94 ±0,51
(142 Series only)
0.704 ±0.020
17,88 ±0,51
0.138 ±0.040
3,5 ±1,02
0.276 ±0.007
7,01 ±0,18
Start
0.276 ±0.007
7,01 ±0,18
Finish
0.025 ±0.002
dia
0,635 ±0,05
With Shield Can
0.411 sq max
10,44
0.531
max
13,49
Recommended
Board Layout
(142 Series only)
0.750
max
19,05
0.375
Tab centers
9,53
0.197 (optional, for tuning
5,00 through the board)
0.060 ±0.010
1,52 ±0,25
0.138
3,505
0.080 (for shield
2,03 can tabs)
Start
CL
0.138
3,505
0.197
dia
5,00
Finish
0.157 ±0.010
3,99 ± 0,25
Tab length
Terminations: Series 142 and 143 leads: Tin-silver over copper
Series 144 leads: Matte tin over copper
Shield can tabs: Tin-silver over nickel over brass
Resistance to soldering heat: Wave solder only. Recommended maximum
board surface temperature of 168°C (334°F) for no more than three seconds.
Pre-heating is recommended to minimize time over the solder nozzle.
Dimensions are in
Weight:
142 series
143 series
144 series
Packaging:
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
inches
mm
Unshielded
1.39 – 1.82 g
1.75 – 2.40 g
1.22 – 1.74 g
50 per tube
0.045 (2)
1,143
CL
0.1875
4,76
With shield can
1.64 – 2.16 g
2.85 – 3.54 g
2.35 – 2.91 g
50 per tube
Document 108-1 Revised 09/18/08
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
Document 108-2
Unshielded
No core
DCR
Part No core L2 L min3
L nom
L max
SRF min
max
Irms5
1
4
number Color Turns nom (nH)
(nH)
(nH)
(nH) Q min (MHz)(mOhm) (A)
144-01J12L Brown1½
53
56
59
62 140 1800 7.4 11.0
144-02J12L Red 2½ 75
79
88
98145 1150 8.6 10.0
144-03J12L Orange3½
99
104
123
142 147 900 9.7 9.6
144-04J12L Yellow4½ 126
132 164
195 150 765 10.9 9.0
144-05J12L Green5½ 154
162 207
252 154 670 12.1 8.6
144-06J12L Blue6½ 182
193 250 306154 610 13.6 8.1
144-07J12L Violet7½ 214
240 298
356 158 525 14.7 7.8
144-08J12L Gray8½ 245
283 344 405160 465 15.9 7.5
144-09J12L White9½ 274
328 387
446 162 420 17.1 7.2
144-10J12L
Black10½ 307
391
442
493 162 390 18.5 7.0
142-01J08L Brown1½
63
63
65
68 115 980 7.4 13.4
142-02J08L Red 2½ 92
93 100 107118 600 8.4 12.5
142-03J08L Orange3½ 127
133
145
157 120 470 9.6 11.8
142-04J08L Yellow4½ 166
174 196
218 125 420 10.8 11.1
142-05J08L Green5½ 212
226 256
287 122 370 11.9 10.5
142-06J08L Blue6½ 258
275 315 355112 340 13.2 10.0
142-07J08L Violet7½ 307
330 378
427 112 310 14.5 9.6
142-08J08L Gray8½ 357
396 450 504106 290 15.7 9.2
142-09J08L White9½ 412
473 520
567 110 270 16.9 8.9
142-10J08L
Black10½ 464
550
592
635 104 260 18.0 8.6
143-09J12L White9½ 385
404 550
693 86 280 16.7 7.3
143-10J12L
Black10½ 438
460
624
788 90 270 17.9 7.1
143-11J12L
Brown11½
490
515
708
900 78
260 19.2
6.8
143-12J12L
Red12½ 545
578
764
950 84 250 20.5 6.6
143-13J12L
Orange13½
600
673
845
1020
84
245 21.7
6.4
143-14J12L
Yellow14½
645
726
908
1090 82
240 22.8
6.3
143-15J12L
Green15½
692
803
978
1150 90
230 23.9
6.1
143-16J12L
Blue16½ 765
891 1080 1270 74 225 25.2 6.0
143-17J12L
Violet17½
830
1010 1180
1340 74
215 26.4 5.8
143-18J12L
Gray18½ 895
1100 1250 1400 92 195 27.6 5.7
143-19J12L
White19½
910
1200 1320
1440 98
190 28.9
5.6
143-20J12L
Black20½ 960
1300 1400
1500 92 185 30.0 5.5
Shielded
No core
DCR
Part No core L2 L min3
L nom
L max
SRF min
max
Irms5
number1
Color Turns nom (nH)
(nH)
(nH)
(nH) Q min4(MHz)(mOhm) (A)
144-01J12SL Brown1½
50
52
53
54 97 2200 7.4 11.0
144-02J12SL Red2½ 67
70
74
78 981200 8.610.0
144-03J12SL Orange3½
88
92
99
106 98 920 9.7 9.6
144-04J12SL Yellow4½ 106
111 122
133 100 790 10.9 9.0
144-05J12SL Green5½ 126
132 149
165 101 685 12.1 8.6
144-06J12SL Blue6½ 147
154 175 196106 625 13.6 8.1
144-07J12SL Violet7½ 168
176 200
223 104 530 14.7 7.8
144-08J12SL Gray8½ 190
202 226 250108 480 15.9 7.5
144-09J12SL White9½ 210
239 256
274 108 435 17.1 7.2
144-10J12SL Black10½ 232
270
282
295 106 420 18.5 7.0
142-01J08SL Brown1½
58
58
59.5 61 82 1230 7.4 13.4
142-02J08SL Red2½ 81
84
86
89 83 650 8.412.5
142-03J08SL
Orange 3½
110
115
120
121
85
550
9.6
11.8
142-04J08SL Yellow4½ 140
147 156
160 88 460 10.8 11.1
142-05J08SL Green5½ 174
182 197
205 94 410 11.9 10.5
142-06J08SL Blue6½ 210
220 240 248 94 370 13.2 10.0
142-07J08SL Violet7½ 247
259 280
290 90 330 14.5 9.6
142-08J08SL Gray8½ 284
299 322 337 86 320 15.7 9.2
142-09J08SL White9½ 319
338 363
377 88 310 16.9 8.9
142-10J08SL Black10½ 357
382
410
422 82 290 18.0 8.6
143-09J12SL White9½ 300
315 369
423 80 303 16.7 7.3
143-10J12SL Black10½ 338
355
416
477 82 290 17.9 7.1
143-11J12SL Brown11½
377
396
468
540 78
270 19.2
6.8
143-12J12SL Red12½ 412
433
509
585 80 265 20.5 6.6
143-13J12SL Orange13½
452
475
556
637
80
265 21.7
6.4
143-14J12SL Yellow14½
490
515
604
693 78
260 22.8
6.3
143-15J12SL Green15½
522
583
660
738 80
250 23.9
6.1
143-16J12SL Blue16½ 575
638
720
801 76 245 25.2 6.0
143-17J12SL Violet17½
612
693
770
846 76
240 26.4 5.8
143-18J12SL Gray18½ 650
754
814
874 82 215 27.6 5.7
143-19J12SL White19½
675
792
846
900 80
210 28.9
5.6
143-20J12SL Black20½ 715
847
896
945 74 200 30.0 5.5
1. To order fixed inductance parts
without cores, eliminate the “J08”
or “J12”, e.g. 144-01L or 144-01SL.
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.
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.
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.
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
Document 108-2 Revised 09/18/08
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.