ST475RAT Datasheet, PDF (1/2 Pages) Coilcraft lnc. – Air Core Inductors for Critical Applications

AIR CORE INDUCTORS
Air Core Inductors for Critical Applications ST475RAT
■ High Q over a wide range of frequencies
■ Excellent current handling
■ Acrylic top provides a flat surface 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.
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)
Packaging  500 per 7″reel  Plastic tape: 12 mm wide,
0.3 mm thick, 8 mm pocket spacing, 4.2 mm pocket depth

 _{Part number}1
ST475RAT22N_LZ
ST475RAT27N_LZ
ST475RAT33N_LZ
ST475RAT39N_LZ
ST475RAT47N_LZ
ST475RAT56N_LZ
ST475RAT68N_LZ
ST475RAT82N_LZ
ST475RATR10_LZ
ST475RATR12_LZ
ST475RATR15_LZ
 _Inductance2
(nH)
22
27
33
39
47
56
68
82
100
120
150
Percent
tolerance
5,2
5,2
5,2
5,2
5,2
5,2
5,2
5,2
5,2
5,2
5,2
 _{Q typ}3
135
135
130
135
135
125
120
120
115
125
145
 _Qmin3
100
100
100
100
100
100
100
100
100
100
100
 _{SRF min}4
(GHz)
3.2
2.7
2.5
2.1
2.1
1.5
1.5
1.3
1.2
1.1
0.75
 _{DCR max}5
(mOhm)
4.2
4.0
4.8
4.4
5.6
6.2
8.2
9.4
12.3
17.3
33.0
 _Imax
(A)
3.0
3.5
3.0
3.0
3.0
3.0
2.5
2.5
1.7
1.5
1.2
1. When ordering, specify tolerance, termination and testing codes:
ST475RATR15GLZ
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) over copper or
S = non-RoHS tin-lead (63/37) over copper.
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 or equivalent with a Coilcraft
CCF1268 test fixture.
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.
© Coilcraft, Inc. 2011
®
Specifications subject to change without notice.
Please check our website for latest information. Document ST184-1  Revised 04/12/11
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Cary IL 60013
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