ST350RAT COILCRAFT | Alldatasheet
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cps@coilcraft.com www.coilcraft-cps.com © Coilcraft, Inc. 2011 Specifications subject to change without notice. Please check our website for latest information. 1. When ordering, specify tolerance, termination and testing codes: ST394RAT10GLZ 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 800 MHz on an Agilent/HP 4286A or equiva- lent with a Coilcraft SMD-A test fixture and correlation. 3. Q measured at 800 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. 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. AIR CORE INDUCTORS Document ST163-1 Revised 10/24/11 SRF DCR L2 Percent Q3 min4 max5 Imax Part number1 Turns (nH) tol min (GHz) (mOhm) (A) ST350RAT1N7KLZ 2 1.65 10 100 10 4.0 1.6 ST350RAT2N6JLZ 3 2.55 5 100 8.2 5.0 1.6 ST350RAT3N9_LZ 4 3.85 5,2 100 7.5 6.0 1.6 ST350RAT5N4_LZ 5 5.40 5,2 100 7.0 8.0 1.6 ST394RAT5N6_LZ 6 5.60 5,2 100 6.5 9.0 1.6 ST394RAT7N2_LZ 7 7.15 5,2 100 6.0 10 1.6 ST394RAT8N8_LZ 8 8.80 5,2 100 6.0 12 1.6 ST394RAT9N9_LZ 9 9.85 5,2 100 5.2 13 1.6 ST394RAT13N_LZ 10 12.55 5,2 100 4.6 14 1.6 Air Core Inductors for Critical Applications ST350RAT ST394RAT ■ High Q over a wide range of frequencies ■ Acrylic jacket provides a flat top for pick and place ■ Solder coated leads ensure reliable soldering Terminations Tin-silver over copper. Other terminations available at additional cost. Ambient temperature –40°C to +125°C with Imax current, +125°C to +145°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 ST350RAT: 500 per 7″ reel Plastic tape: 8 mm wide, 0.3 mm thick, 4 mm pocket spacing, 1.5 mm pocket depth ST394RAT: 500 per 7″ reel Plastic tape: 12 mm wide, 0.3 mm thick, 4 mm pocket spacing, 1.6 mm pocket depth Dimensions are in inches mm Suggested Land Patterns
cps@coilcraft.com www.coilcraft-cps.com © Coilcraft, Inc. 2011 Specifications subject to change without notice. Please check our website for latest information. AIR CORE INDUCTORS Document ST163-2 Revised 10/24/11 ST350RAT / ST394RAT Air Core Inductors L vs Frequency – ST350RAT Series L vs Frequency – ST394RAT Series Q vs Frequency – ST350RAT Series Q vs Frequency – ST394RAT Series Typical Current Derating 100 1000 Frequency (MHz) Inductance (nH) 3.85 nH 2.55 nH 1.65 nH 5.40 nH 100 1000 Frequency (MHz) Inductance (nH) 12.55 nH 9.85 nH 8.80 nH 7.15 nH 5.60 nH 100 150 200 250 100 1000 Frequency (MHz) Q factor 1.65 nH2.55 nH 3.85 nH 5.40 nH 100 150 200 250 100 1000 Frequency (MHz) Q factor 7.15 nH 12.55 nH 8.80 nH 5.60 nH 9.85 nH -40 -20 02 04 06 08 0 100 140120 Ambient temperature (°C) 120 110 100 Pe rcent of rated rmsI 25°C