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 terminations 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 number1 Inductance2 Percent (nH)tolerance Q typ3 DCR max5 Imax min4 (GHz)(mOhm) (A) SRF Qmin3 ST475RAT22N_LZ22 ST475RAT27N_LZ 27 ST475RAT33N_LZ33 ST475RAT39N_LZ 39 ST475RAT47N_LZ 47 5,2 5,2 5,2 5,2 5,2 135100 135100 130100 135100 135100 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_LZ56 ST475RAT68N_LZ 68 ST475RAT82N_LZ 82 ST475RATR10_LZ 100 ST475RATR12_LZ 120 5,2 5,2 5,2 5,2 5,2 125100 120100 120100 115100 125100 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_LZ150 5,2 145100 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 ® Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 © 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 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. Document ST184-1 Revised 04/12/11 Phone 800-981-0363 Fax 847-639-1508 E-mail [email protected] 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 25°C 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 ® Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2011 inches mm Document ST184-2 Revised 04/12/11 Phone 800-981-0363 Fax 847-639-1508 E-mail [email protected] Web www.coilcraft-cps.com