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.
3 TOOLS IN 1
TRITUNER SEE INDEX
TUNING WRENCH
Unshielded Styles
0.470 0.020
11,94 0,51
(142 Series only)
0.380 0.005
square
0.276 0.007
7,01 0,18
9,65 0,13
0.704 0.020
17,88 0,51
0.138 0.040
3,5 1,02
Start
0.276 0.007
7,01 0,18
Finish
0.025 0.002
0,635 0,05
dia
Recommended
Board Layout
With Shield Can
0.531
max
(142 Series only)
13,49
0.375
9,53
0.197
5,00
(optional, for tuning
through the board)
Tab centers
0.411
0.750
max
sq max
0.060 0.010
1,52 0,25
10,44
19,05
0.138
3,505
0.080
2,03
(for shield
can tabs)
Start
C
L
0.138
3,505
0.1875
4,76
Finish
0.045
(2)
0.197
dia
0.157 0.010
3,99 0,25
Tab length
1,143
5,00
inches
mm
C
L
Dimensions are in
Unshielded
With shield can
Terminations: Series 142 and 143 leads: Tin-silver over copper
Series 144 leads: Matte tin over copper
Weight:
142 series
143 series
144 series
1.39 – 1.82 g
1.75 – 2.40 g
1.22 – 1.74 g
1.64 – 2.16 g
2.85 – 3.54 g
2.35 – 2.91 g
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.
Packaging:
50 per tube
50 per tube
Document 108-1 Revised 09/18/08
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
© 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.
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