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cps@coilcraft.com www.coilcraft-cps.com © Coilcraft, Inc. 2012 Specifications subject to change without notice. Please check our website for latest information. Document ST266-1 Revised 03/14/12 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 0.55 1.30 ST312PHA102KLZ 1.0 15 0.26 390 0.40 1.00 ST312PHA182KLZ 1.8 15 0.54 155 0.39 0.70 ST312PHA222KLZ 2.2 15 0.75 245 0.33 0.60 ST312PHA272KLZ 2.7 15 0.75 127 0.33 0.55 ST312PHA332KLZ 3.3 15 0.88 72 0.32 0.50 ST312PHA392KLZ 3.9 15 1.00 72 0.27 0.48 ST312PHA472KLZ 4.7 15 1.08 64 0.26 0.47 ST312PHA562KLZ 5.6 15 1.23 51 0.25 0.41 ST312PHA682KLZ 6.8 15 1.37 39 0.23 0.40 ST312PHA822KLZ 8.2 20 1.43 30 0.22 0.39 ST312PHA103KLZ 10 20 1.60 30 0.21 0.38 ST312PHA153KLZ 15 20 1.92 22 0.16 0.35 ST312PHA223KLZ 22 20 2.96 16 0.13 0.27 ST312PHA333KLZ 33 20 5.63 12 0.10 0.20 ST312PHA473KLZ 47 20 5.69 12 0.10 0.18

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 1. When ordering, please specify termination and testing codes: 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.

cps@coilcraft.com www.coilcraft-cps.com © Coilcraft, Inc. 2012 Specifications subject to change without notice. Please check our website for latest information. Document 266-2 Revised 03/14/12 Power Inductor for Critical Applications – ST312PHA 0.1 100 1000 11 0 100 1000 Current (mA) Inductance (µH) 6.8 µH 3.3 µH 33 µH 1µ H Typical L vs Current A B C max max max D E F G H I J 2,59 2,08 1,80 1,24 0,76 1,52 0,33 1,02 0,64 0,64 mm A B overall C Terminal wraparound: approx 0.012/0,30 both ends I I JF G H Suggested Land Pattern E terminal D 0.1 11 0 Frequency (MHz) Q factor 10 µH 3.3 µH 6.8 µH 1µ H 33 µH Typical Q vs Frequency Typical L vs Frequency 100 1000 Inductance (µH) 0.1 1 10 100 0.1 Frequency (MHz) 33 µH 3.3 µH 1 µH 6.8 µH -40 -20 02 04 06 08 0 100 120 Ambient temperature (°C) 120 110 100 Pe rcent of rated rmsI 25°C Irms Derating Note: Height dimension is before optional solder application. For maxi- mum height including solder, add 0.006 in / 0,15 mm.