© Coilcraft, Inc. 2005
Specifications subject to change without notice.
Please check our website for latest information.
Micro Spring™ Air Core Inductors
Document 163-1
Document 163-1 Revised 03/14/05
The world’s smallest surface mount air core inductors,
these components provide exceptionally high Q over a
wide range of frequencies.
They feature tight inductance tolerance and thermal
stability, which can often eliminate the need for circuit
tuning.
Coilcraft’s Micro Spring™ inductors are tape and reel
packaged and have an acrylic jacket with a flat top,
making them suitable for automatic placement and reflow
or vapor phase processing. The leads are solder coated
to ensure reliable soldering.
Coilcraft Designer’s Kit C108 contains samples of all
5% inductance tolerance parts. Kits with 2% tolerance
are also available. To order, contact Coilcraft or visit
http://order.coilcraft.com.
Test SRF5DCR6Irms7
Part Inductance2Percent Q4freq. min max max
number1Turns (nH) tolerance3min (MHz) (GHz) (mOhm) (A)
0906-2_ 2 1.65 10 100 800 10.0 4.0 1.6
0906-3_ 3 2.55 10,5100 800 8.2 5.0 1.6
0906-4_ 4 3.85 10,5,2 100 800 7.5 6.0 1.6
0906-5_ 5 5.40 5,2 100 800 7.0 8.0 1.6
1606-6_ 6 5.60 5,2 100 800 6.5 9.0 1.6
1606-7_ 7 7.15 5,2 100 800 6.0 10 1.6
1606-8_ 8 8.80 5,2 100 800 6.0 12 1.6
1606-9_ 9 9.85 5,2 100 800 5.2 13 1.6
1606-10_ 10 12.55 5,2 100 800 4.6 14 1.6
1. When ordering, please add letter to specify
inductance tolerance: G=2%, J=5%, K=10%.
2. Inductance measured using Agilent/HP 4286
with Coilcraft SMD-A fixture and correlation.
3. Tolerances in bold are stocked for immediate
shipment.
4. Q measured using Agilent/HP 4291A with
Agilent/HP 16193A test fixture.
5. SRF measured using Agilent/HP 8720D with
Coilcraft SMD-D test fixture.
6. DCR tested on the Cambridge Technology
Model 510 Micro-ohmmeter.
7. Average current for a 15°C rise above 25°C
ambient.
8. Operating temperature range -40°C to +125°C.
9. Electrical specifications at 25°C.
See Qualification Standards section for
environmental and test data
Recommended Land Patterns
Strip Length
Size A max B max C max D E F max
0906 0.095 0.060 0.0720.135 0.055 ±0.010 ±0.010 0.020
2,41 3,43 1,52 1,40 ±0,25 1,83 ±0,25 0,51
1606 0.165 0.135 0.062 0.055 ±0.010 0.144 ±0.012 0.020
4,19 3,43 1,58 1,40 ±0,25 3,66 ±0,30 0,51
0906 Size 1606 Size
0.031
0,79
0.031
0,79
0.103
2,62 0.175
4,45
0.041
1,04 0.113
2,87
0.097
2,46
0.097
2,46
0.040
1,02
0.040
1,02
135°
max
0° min
A
B
D
C
E
F
Encapsulant
Weight: 8 – 14 mg 18 – 25 mg
Tape and reel: 500/7″ reel* 500/7″ reel*
8 mm tape width 12 mm tape width
*Reels shipped from stock. Larger orders are 2000 per 7″ reel.
For packaging data see Tape and Reel Specifications section.
Terminations: Tin/lead over copper
© Coilcraft, Inc. 2005
Specifications subject to change without notice.
Please check our website for latest information.
Document 163-2
Document 163-2 Revised 03/06/03
Micro Spring™ Air Core Inductors
Typical L vs Frequency – 0906 Series Typical L vs Frequency – 1606 Series
Typical Q vs Frequency – 0906 Series Typical Q vs Frequency – 1606 Series
0
2
4
6
8
10
12
14
100 1000
Frequency (MHz)
Inductance (nH)
3.85 nH
2.55 nH
1.65 nH
5.40 nH
0
2
4
6
8
10
12
14
100 1000
Frequency (MHz)
Inductance (nH)
12.55 nH
9.85 nH
8.80 nH
7.15 nH
5.60 nH
0
50
100
150
200
250
100 1000
Frequency (MHz)
Q factor
1.65 nH
2.55 nH
3.85 nH
5.40 nH
0
50
100
150
200
250
100 1000
Frequency (MHz)
Q factor
7.15 nH
12.55 nH
8.80 nH
5.60 nH
9.85 nH
