AIR CORE INDUCTORS Air Core Inductors for Critical ApplicationsST475RAT 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 terminations available at additional cost. Ambient temperature -40C to +125C with Imax current, +125C to +140C with derated current Storage temperature Component: -40C to +140C. Tape and reel packaging: -40C to +80C Resistance to soldering heat Max three 40 second reflows at +260C, 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 <30C / 85% relative humidity) Packaging500 per 7reel Plastic tape: 12 mm wide, 0.3 mm thick, 8 mm pocket spacing, 4.2 mm pocket depth Inductance2 (nH) Percent tolerance Q typ3 Qmin3 SRF min4 (GHz) ST475RAT22N_LZ ST475RAT27N_LZ ST475RAT33N_LZ ST475RAT39N_LZ ST475RAT47N_LZ 22 27 33 39 47 5,2 5,2 5,2 5,2 5,2 135 135 130 135 135 100 100 100 100 100 3.2 2.7 2.5 2.1 2.1 4.2 4.0 4.8 4.4 5.6 3.0 3.5 3.0 3.0 3.0 ST475RAT56N_LZ ST475RAT68N_LZ ST475RAT82N_LZ ST475RATR10_LZ ST475RATR12_LZ 56 68 82 100 120 5,2 5,2 5,2 5,2 5,2 125 120 120 115 125 100 100 100 100 100 1.5 1.5 1.3 1.2 1.1 6.2 8.2 9.4 12.3 17.3 3.0 2.5 2.5 1.7 1.5 ST475RATR15_LZ 150 5,2 145 100 0.75 33.0 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 (R) (c) Coilcraft, Inc. 2011 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 25C. Refer to Doc 362 "Soldering Surface Mount Components" before soldering. Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 DCR max5 (mOhm) Imax (A) Part number1 Document ST184-1 Phone 800-981-0363 Fax 847-639-1508 Revised 04/12/11 E-mail cps@coilcraft.com Web www.coilcraft-cps.com AIR CORE INDUCTORS ST475RAT Air Core Inductors Typical L vs Frequency Typical Q vs Frequency 250 250 200 200 22 nH 150 68 nH 100 39 nH 22 nH 50 0 1000 100 10 1 10000 Frequency (MHz) Q factor Inductance (nH) 120 nH 39 nH 150 68 nH 120 nH 100 50 0 1 10 100 Frequency (MHz) 1000 10000 Current Derating 120 110 90 80 70 60 50 40 30 25C Percent of rated Irms 100 20 10 0 -40 -20 0 20 40 60 80 100 120 140 Ambient temperature (C) Suggested Land Pattern Dimensions are in (R) Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 (c) Coilcraft, Inc. 2011 inches mm Document ST184-2 Phone 800-981-0363 Fax 847-639-1508 Revised 04/12/11 E-mail cps@coilcraft.com Web www.coilcraft-cps.com