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ML439RAT Datasheet, PDF (1/2 Pages) Coilcraft lnc. – High-Reliability Air Core Inductors
AIR CORE INDUCTORS
High-Reliability Air
Core Inductors
ML439RAT
ML470RAT
■ Small air core inductors feature high Q and tight tolerances
■ High temperature materials allow operation in ambient
temperatures up to 155°C.
Terminations  Tin-silver over copper.
Ambient temperature  –55°C to +125°C with Imax current, +125°C
to +155°C with derated current
Storage temperature  Component: –55°C to +155°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)
Enhanced crush-resistant packaging 
ML439RAT: 700/7″ reel  Plastic tape: 12 mm wide, 0.32 mm thick,
8 mm pocket spacing, 3.3 mm pocket depth
ML470RAT: 500/7″ reel  Plastic tape: 16 mm wide, 0.28 mm thick,
8 mm pocket spacing, 3.4 mm pocket depth
PCB washing  Only pure water or alcohol recommended
SRF DCR
  L2 Percent   Q3   min4   max5 Imax Weight
  Part number1 Turns (nH) tol min (GHz) (mOhm) (A) (mg)
ML439RAT2N5KLZ 1 2.5 10 145 12.5 1.1 4
31
ML439RAT5N0_LZ 2 5.0 5,2 140 6.5 1.8 4
42
ML439RAT8N0_LZ 3 8.0 5,2 140 5.0 2.6 4
52
ML439RAT13N_LZ 4 12.5 5,2 137 3.3 3.4 4
65
ML439RAT19N_LZ 5 18.5 5,2 132 2.5 3.9 4
78
ML470RAT18N_LZ 6 17.5 5,2 100 2.2 4.5 4 100
ML470RAT22N_LZ 7 22.0 5,2 102 2.1 5.2 4 110
ML470RAT28N_LZ 8 28.0 5,2 105 1.8 6.0 4 118
ML470RAT36N_LZ 9 35.5 5,2 112 1.5 6.8 4 133
ML470RAT43N_LZ 10 43.0 5,2 106 1.2 7.9 4 147
1. When ordering, please specify tolerance and testing codes:
ML470RAT43NGLZ
Tolerance: G = 2%  J = 5%
Testing: Z = COTS
H = Screening per Coilcraft CP-SA-10001
N = Screening per Coilcraft CP-SA-10003
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.
Dimensions
are
in
inches
mm
© Coilcraft, Inc. 2011
®
Specifications subject to change without notice. Document ML107-1  Revised 09/08/11
1102 Silver Lake Road
Cary IL 60013
Phone 800-981-0363
Fax 847-639-1508
E-mail cps@coilcraft.com
Web www.coilcraft-cps.com