0603 POWER INDUCTORS Power Inductor for Critical Applications ST312PHA ■ Shielded power inductors ■ Excellent current handling for a part this size; low DCR Core material Ceramic/Ferrite Terminations Silver-palladium-platinum-glass frit. Other terminations available at additional cost. Weight 26.4 – 27.9 mg Ambient temperature –40°C to +65°C with Irms current, +65°C to +105°C with derated current Storage temperature Component: –55°C to +105°C. Packaging: –55°C to +80°C Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Packaging 2000/7″ reel; 7500/13″ reel Plastic tape: 8 mm wide, 0.23 mm thick, 4 mm pocket spacing, 1.8 mm pocket depth DCR4 SRF5 L ±10%2 Q min3 max typ Isat6 Irms7 Part number1 (µH) at 1 MHz (Ohms) (MHz) (A) (A) ST312PHA781KLZ 0.78 15 0.24 475 0.551.30 ST312PHA102KLZ 1.0 15 0.26 390 0.401.00 ST312PHA182KLZ 1.8 15 0.54 155 0.390.70 ST312PHA222KLZ 2.2 15 0.75 245 0.330.60 ST312PHA272KLZ 2.7 15 0.75 127 0.330.55 ST312PHA332KLZ 3.3 15 0.88 72 0.320.50 ST312PHA392KLZ 3.9 15 1.00 72 0.270.48 ST312PHA472KLZ 4.7 15 1.08 64 0.260.47 ST312PHA562KLZ 5.6 15 1.23 51 0.250.41 ST312PHA682KLZ 6.8 15 1.37 39 0.230.40 ST312PHA822KLZ 8.2 20 1.43 30 0.220.39 ST312PHA103KLZ 10 20 1.60 30 0.210.38 ST312PHA153KLZ 15 20 1.92 22 0.160.35 ST312PHA223KLZ 22 20 2.96 16 0.130.27 ST312PHA333KLZ 33 20 5.63 12 0.100.20 ST312PHA473KLZ 47 20 5.69 12 0.100.18 ® ST312PHA334KLZ Termination:L =RoHS compliant silver-palladium-platinum-glass frit. 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 100 kHz, 0.1 Vrms, using a Coilcraft SMD‑A fixture in Agilent/HP 4263B LCR meter. 3. Q measured on an Agilent/HP 4291 with an Agilent/HP 16193 test fixture. 4. DCR measured on a micro-ohmmeter and a Coilcraft CCF840 test fixture. 5. SRF measured using an Agilent/HP 8753D network analyzer and a Coilcraft SMD-D test fixture. 6. DC current at which the inductance drops 10% (typ) from its value without current. 7. Current that causes a 40°C temperature rise from 25°C ambient. 8. Electrical specifications at 25°C. 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 © Coilcraft, Inc. 2012 1. When ordering, please specify termination and testing codes: Document ST266-1 Revised 03/14/12 Phone 800-981-0363 Fax 847-639-1508 E-mail [email protected] Web www.coilcraft-cps.com 0603 POWER INDUCTORS Power Inductor for Critical Applications – ST312PHA Typical L vs Current Typical L vs Frequency 1000 1000 100 Inductance (µH) Inductance (µH) 100 33 µH 10 6.8 µH 3.3 µH 1 µH 1 0.1 0.1 10 6.8 µH 3.3 µH 1 µH 1 10 1 33 µH 0.1 100 1 100 10 1000 Current (mA) Frequency (MHz) Typical Q vs Frequency Irms Derating 120 35 110 30 33 µH 6.8 µH 20 10 µH 1 µH 3.3 µH 15 10 90 80 70 60 50 40 30 25°C Q factor 25 Percent of rated Irms 100 20 5 10 0 1 0.1 10 -40 -20 0 20 40 60 80 100 120 Ambient temperature (°C) Frequency (MHz) B overall 0 C D H I F A J I G E terminal Terminal wraparound: approx 0.012/0,30 both ends Suggested Land Pattern ABC maxmaxmax D E F G H IJ 0.1020.0820.0710.0490.0300.0600.0130.0400.0250.025 inches 2,592,081,801,240,761,520,331,020,640,64mm Note: Height dimension is before optional solder application. For maximum height including solder, add 0.006 in / 0,15 mm. ® Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2012 Phone 800-981-0363 Fax 847-639-1508 Document 266-2 Revised 03/14/12 E-mail [email protected] Web www.coilcraft-cps.com