Document 109-1
7 mm Tunable RF Coils – 146, 150
Coilcrafttunablecoilsprovidethecompactnessofa7mm
coil and the low drift reliability of an insert molded coil.
Standard inductance values range from less than 0.05
µH to over 0.5 µH. 150 Series coils with a tap are also
available to meet specific requirements.
The windings of these economical coils are precision
molded into a single piece of polypropylene for mechani-
cal and electrical stability. Optional plated brass shield
cans with solderable tabs provide integral shielding and
additional mounting stability.
These parts can be odered without cores for use as
fixed inductors.
Coilcraft Designer’s Kit M302 contains samples of all
standard 7 mm and 10 mm tunable inductors. To order,
contact Coilcraft or visit http://order.coilcraft.com.
Unshielded Styles
Unshielded
With shield can
Weight: 146 series 0.44 – 0.70 g 0.91 – 1.12 g
0.ꢀ77 0.005
4,5 0,ꢀ3
0.268 0.005
square
0.ꢀ38 0.040
3,5 ꢀ,02
0.450 0.020
6,8ꢀ mm 0,ꢀ3
150 series 0.45 – 0.61 g 0.88 – 1.08 g
ꢀꢀ,43 0,5ꢀ
Start
0.ꢀ77 0.005
4,5 0,ꢀ3
Finish
0.020 0.002
0,5ꢀ 0.05
dia
With Shield Can
Recommended
Board Layout
0.280
7,ꢀ
Tab centers
0.300
max
7,6
0.475
max
ꢀ2,ꢀ
0.039 0.0ꢀ0
ꢀ,0 0,25
0.0885
2,25
0.060
1,52
(for shield
can tabs)
Start
C
L
0.0885
2,25
0.140
3,55
0.2ꢀ6
dia hole
5,5
0.040
1,016
Finish
0.0ꢀ0
3,5ꢀ 0,25
Tab length
0.ꢀ38
(2)
C
L
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.
Terminations Series 146 leads: Tin-silver over copper
Series 150 leads: Matte tin over copper
Shield can tabs: Tin-silver over nickel over brass
Document 109-1 Revised 9/30/08
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© Coilcraft Inc. 2012
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check out web site for latest information.