Document 163-1
Micro Spring
™
Air Core Inductors
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.
Part
number
1
Turns
0906-2_
2
0906-3_
3
0906-4_
4
0906-5_
5
1606-6_
6
1606-7_
7
1606-8_
8
1606-9_
9
1606-10_
10
Inductance
2
(nH)
1.65
2.55
3.85
5.40
5.60
7.15
8.80
9.85
12.55
Percent
tolerance
3
10
10,5
10,5,2
5,2
5,2
5,2
5,2
5,2
5,2
Q
4
min
100
100
100
100
100
100
100
100
100
Test
freq.
(MHz)
800
800
800
800
800
800
800
800
800
SRF
5
DCR
6
Irms
7
min
max max
(GHz) (mOhm) (A)
10.0
4.0
1.6
8.2
5.0
1.6
7.5
6.0
1.6
7.0
8.0
1.6
6.5
9.0
1.6
6.0
10
1.6
6.0
12
1.6
5.2
13
1.6
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
A
D
Encapsulant
E
Recommended Land Patterns
0906 Size
1606 Size
0.031
0,79
0.040
1,02
0.097
2,46
0.041
1,04
0.103
2,62
Weight:
Tape and reel:
8 – 14 mg
500/7″ reel*
8 mm tape width
C
B
0.040
1,02
0.031
0,79
F
Size
0906
1606
A max
0.095
2,41
0.165
4,19
B max
0.135
3,43
0.135
3,43
C max
0.060
1,52
0.062
1,58
D
0.055 ±0.010
1,40 ±0,25
0.055 ±0.010
1,40 ±0,25
E
0.072 ±0.010
1,83 ±0,25
0.144 ±0.012
3,66 ±0,30
F max
0.020
0,51
0.020
0,51
0.097
2,46
0.113
2,87
0.175
4,45
18 – 25 mg
500/7″ reel*
12 mm tape width
Strip Length
135°
max
0° min
*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
Specifications subject to change without notice.
Please check our website for latest information. Document 163-1
Revised 03/14/05
© Coilcraft, Inc. 2005
Document 163-2
Micro Spring™ Air Core Inductors
Typical L vs Frequency – 0906 Series
14
12
Inductance (nH)
Typical L vs Frequency – 1606 Series
14
12.55 nH
12
Inductance (nH)
10
8
6
4
2
0
100
1000
10
8
9.85 nH
8.80 nH
7.15 nH
5.40 nH
3.85 nH
2.55 nH
1.65 nH
6
4
2
0
100
1000
5.60 nH
Frequency (MHz)
Frequency (MHz)
Typical Q vs Frequency – 0906 Series
250
2.55 nH 1.65 nH
3.85 nH
5.40 nH
Typical Q vs Frequency – 1606 Series
250
7.15 nH 8.80 nH
5.60 nH
12.55 nH
9.85 nH
200
200
Q factor
100
Q factor
150
150
100
50
50
0
100
1000
0
100
1000
Frequency (MHz)
Frequency (MHz)
Specifications subject to change without notice.
Please check our website for latest information. Document 163-2
Revised 03/06/03
© Coilcraft, Inc. 2005
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