AIRCOREINDUCTORS
AirCoreInductorsforCriticalApplications ST43790RAT
■ Small air core inductors feature high Q and tight tolerances
■ Acrylic jacket provides a flat top for pick and place
■ Solder coated leads ensure reliable soldering
Terminations RoHS compliant tin-silver over copper. Other termina-
tions available at additional cost.
Ambient temperature –40°C to +125°C with Imax current, +125°C
to +140°C with derated current
Storage temperature Component: –40°C to +140°C.
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)
Packaging
ST439RAT: 700/7″ reel Plastic tape: 12 mm wide, 0.32 mm thick,
8 mm pocket spacing, 3.3 mm pocket depth
ST470RAT: 500/7″ reel Plastic tape: 16 mm wide, 0.28 mm thick,
8 mm pocket spacing, 3.4 mm pocket depth
SRF DCR
L2 Percent Q3 min4 max5 Imax Weight
Part number1 Turns (nH) tol min (GHz)(mOhm) (A) (mg)
ST439RAT2N5KLZ
ST439RAT5N0_LZ
ST439RAT8N0_LZ
ST439RAT13N_LZ
ST439RAT19N_LZ
1
2
3
4
5
2.5
5.0
8.0
12.5
18.5
10
145 12.5
1.1
1.8
2.6
3.4
3.9
4
4
4
4
4
31
42
52
65
78
5,2 140
5,2 140
5,2 137
5,2 132
6.5
5.0
3.3
2.5
ST470RAT18N_LZ
ST470RAT22N_LZ
ST470RAT28N_LZ
ST470RAT36N_LZ
6
7
8
9
17.5
22.0
28.0
35.5
5,2 100
5,2 102
5,2 105
5,2 112
5,2 106
2.2
2.1
1.8
1.5
1.2
4.5
5.2
6.0
6.8
7.9
4
4
4
4
4
100
110
118
133
147
ST470RAT43N_LZ 10 43.0
1. When ordering, please specify tolerance, termination and testing codes:
ST470RAT43NGLZ
Tolerance: G = 2% J = 5%
Termination: L = RoHS compliant tin-silver over copper.
Special order: T = RoHS tin-silver-copper (95.5/4/0.5) or
S = non-RoHS tin-lead (63/37).
Testing:
Z = COTS
H = Screening per Coilcraft CP-SA-10001
2. Inductance measured at 150 MHz on an Agilent/HP 4286A or equivalent with
a Coilcraft SMD-A test fixture and correlation.
3. Q measured at 150 MHz on an Agilent/HP 4291A or equivalent with a 16193A
test fixture or equivalent.
4. SRF measured on an Agilent/HP 8753ES network analyzer or equivalent
with a Coilcraft CCF1268 test fixture. Parts with SRF >5 GHz are verified to
>5 GHz in screening
5. DCR measured on a Keithley 580 Micro-Ohmmeter or equivalent.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
inches
mm
Dimensions are in
Specifications subject to change without notice.
Please check our website for latest information.
®
Document ST107-1 Revised 10/24/11
Phone 800-981-0363
Fax 847-639-1508
E-mail cps@coilcraft.com
Web www.coilcraft-cps.com
1102 Silver Lake Road
Cary IL 60013
© Coilcraft, Inc. 2011