 
Mini Spring™
Air Core Inductors
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New RoHS part numbers are shown.
Lead was removed from terminations. The next to the last character is now L to indicate RoHS
compliance. (View old data sheet.)
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- Inductance values from 2.5 nH to 43 nH (tolerances as low as
2%)
- Tight tolerance can eliminate circuit tuning
- Flat top jacket for mechanical stability and reliable pick and
place operations
- Exceptionally high Q over a wide frequency range
- Highest possible self resonance (greater than 3 GHz)
- Solder coated leads ensure reliable soldering
- RoHS-compliant 260°C compatible. Terminations: tin-silver over copper
- COTS Plus tin-silver-copper and tin-lead terminations available
- Samples of all values are available in Coilcraft Designer's Kit C302
Photo 
Pricing  Materials declaration 
PDF data sheet
SPECIFICATIONS
Q vs Frequency
L vs Frequency
Current Derating
 Dimensions
Qualification standards 
Tape
and reel specifications
 S-Parameters
Transmission Line models Modelithics™ substrate scalable models
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A01TKL_ |
1 |
2.5 |
10 |
145 |
150 |
12.5 |
1.1 |
4 |
31 |
|
A02T_L_ |
2 |
5.0 |
5,2 |
140 |
150 |
6.5 |
1.8 |
4 |
42 |
|
A03T_L_ |
3 |
8.0 |
5,2 |
140 |
150 |
5.0 |
2.6 |
4 |
52 |
|
A04T_L_ |
4 |
12.5 |
5,2 |
137 |
150 |
3.3 |
3.4 |
4 |
65 |
|
A05T_L_ |
5 |
18.5 |
5,2 |
132 |
150 |
2.5 |
3.9 |
4 |
78 |
|
B06T_L_ |
6 |
17.5 |
5,2 |
100 |
150 |
2.2 |
4.5 |
4 |
100 |
|
B07T_L_ |
7 |
22.0 |
5,2 |
102 |
150 |
2.1 |
5.2 |
4 |
110 |
|
B08T_L_ |
8 |
28.0 |
5,2 |
105 |
150 |
1.8 |
6.0 |
4 |
118 |
|
B09T_L_ |
9 |
35.5 |
5,2 |
112 |
150 |
1.5 |
6.8 |
4 |
133 |
|
B10T_L_ |
10 |
43.0 |
5,2 |
106 |
150 |
1.2 |
7.9 |
4 |
147 |
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| 1 |
When
ordering, please specify tolerance, termination and packaging codes: e.g. B10TJLC |
|
Tolerance: |
G = 2%, J = 5%,
K = 10% (Table above shows stock tolerances in bold.) |
|
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Termination: |
L
= RoHS compliant tin-silver (96.5/3.5) over copper.
Special order, added cost: T
= RoHS tin-silver-copper (95.5/4/0.5) over copper or
S
= non-RoHS tin-lead (63/37) over copper. |
| |
Packaging: |
C =
7" machine-ready reel.
EIA-481 embossed plastic tape, 700 (AxxT) or 500 (BxxT) parts per full
reel.
B = Less than full reel. In tape, but not machine-ready.
To have a leader and trailer added ($25 charge), use code letter C
instead.
D = 13″ machine-ready reel.
EIA-481 embossed plastic tape. Factory order only, not stocked, 2500 (AxxT)
or 2200 (BxxT) parts per full reel. |
| 2 |
Inductance
measured using an Agilent/HP 4286A with a Coilcraft
SMD-A
fixture and Coilcraft supplied correlation. |
| 3 |
Tolerances
in bold are stocked for immediate shipment. |
| 4 |
Q
measured using an Agilent/HP 4291A with an Agilent/HP 16193A test fixture. |
| 5 |
SRF
measured with an Agilent/HP 8720D network analyzer and a Coilcraft
SMD-D
test fixture. Details |
| 6 |
DCR
tested on the Cambridge Technology Model 510 Micro-ohmmeter. |
| 7 |
Irms: Current that causes a
15°C temperature rise from 25°C ambient.
Details |
| 8 |
Ambient temperature range: |
–40°C to +125°C with Irms current.
+125°C to +140°C with derated current. Derating curve |
| 9 |
Storage temperature range: |
Component: –40°C to +140°C
Packaging: –55°C to +80°C |
| 10 |
Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between. |
| 11 |
Electrical specifications at 25°C. |
| 12 |
Temperature
coefficient of inductance: +5 to +70 ppm/°C.
Details |
| See
Qualification Standards for complete environmental and
test data. |
| Refer to Soldering Coilcraft Components before soldering. |
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