NA593x-AL

Document 1115-1
Air Core Inductors
For Linear Technology
LT8697 switching regulator
• Developed for Linear Technology LT8697 monolithic step-down
switching regulator designed to power 5V USB applications.
• Tight DCR tolerance: ±5%
• Air core inductors feature high Q and high current ratings
Weight 0.42 – 0.59 g
Terminations RoHS compliant tin-silver (96.5/3.5) over copper.
Ambient temperature –40°C to +125°C with Irms current, +125°C
to +140°C with derated current
Storage temperature Component: –40°C to +140°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Temperature Coefficient of Inductance (TCL) +5 to +70 ppm/°C
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
One per billion hours / one billion hours, calculated per Telcordia SR-332
Packaging 800/13″ reel Plastic tape: 24 mm wide, 0.3 mm thick,
12 mm pocket spacing, 6.1 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf
Part
number1
Inductance2
Turns
NA5931-AL_
NA5932-AL_
NA5933-AL_
NA5934-AL_
NA5935-AL_
NA5936-AL_
15
16
17
18
19
20
±2% (nH)
246
307
380
422
491
538
Q3
typ min
SRF
11495
11495
11495
11495
11495
10487
1. When ordering, please specify packaging code:
NA5936-ALD
Packaging:D = 13″ machine-ready reel. EIA-481 embossed plastic tape
(800 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 D instead.
min4
(GHz)
DCR
±5%5
(mOhm)
0.685
0.660
0.590
0.540
0.535
0.490
15.7
21.8
32.4
34.3
44.1
47.2
Irms6
(A)
3.0
3.0
2.5
2.5
2.0
2.0
3. Q tested at 50 MHz on an Agilent/HP 4291A Impedance Analyzer or
equivalent with a Coilcraft SMD-A fixture and correlation.
4. SRF tested on the Agilent/HP 8753D and a Coilcraft CCF1248 test fixture.
5. DCR tested on the Keithley 580 Micro Ohmmeter.
6. Current that causes a 15°C temperature rise from 25°C ambient.
7. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
2. Inductance tested at 50 MHz on an Agilent/HP 4191A Impedance Analyzer
or equivalent with a Coilcraft SMD-A fixture and correlation.
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 1115-1 Revised 009/08/14
© Coilcraft Inc. 2014
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.
Document 1115-2
Air Core Inductors for Linear Technology LT8697
L vs Frequency
Q vs Frequency
1000
200
900
246 nH
307 nH
380 nH
538 nH 422 nH
491 nH
538 nH
491 nH
422 nH
380 nH
307 nH
246 nH
700
600
500
400
150
Q factor
Inductance (nH)
800
100
300
50
200
100
0
10
1
1000
100
0
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
Typical Irms Derating
120
110
90
80
70
60
50
40
30
25°C
Percent of rated Irms
100
20
10
0
-40
-20
0
20
40
60
80
100
120 140
Ambient temperature (°C)
Dimensions are in
inches
mm
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 1115-2 Revised 09/08/14
© Coilcraft Inc. 2014
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.