2014 POWER INDUCTORS Power Inductor for Critical Applications ST358PWA ■ Miniature shielded power inductors; 2.0 × 2.0 mm footprint ■ Extremely low DCR and very high SRF ratings ■ Isat ratings as high as 2.8 A Core material Ferrite Terminations Tin-silver-copper over tin over nickel over silver. Weight 20 – 25 mg Ambient temperature –40°C to +85°C with Irms current, +85°C to +125°C with derated current Storage temperature Component: –55°C to +125°C. Packaging: –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, 0.28 mm thick, 4 mm pocket spacing, 1.65 mm pocket depth Part number1 Inductance2 ±20% (µH) DCR nom3 DCR max3 (Ohms) (Ohms) Isat (A)5 Irms (A)6 SRF typ4 (MHz) 10% drop 20% drop 30% drop 20°C rise 40°C rise ST358PWA271MLZ 0.27 0.030 0.036 570 1.502.302.80 2.04 2.73 ST358PWA421MLZ 0.42 0.037 0.044 438 1.402.002.40 1.93 2.57 ST358PWA601MLZ 0.60 0.043 0.052 290 1.201.802.25 1.83 2.43 ST358PWA821MLZ 0.820.051 0.061 1630.950 1.40 1.751.49 2.03 ST358PWA102MLZ 1.0 0.059 0.071 153 0.9001.30 1.68 1.43 1.94 ST358PWA152MLZ 1.5 0.075 0.086 109 0.7201.20 1.60 1.34 1.86 ST358PWA222MLZ 2.2 0.120 0.132 80 0.6000.9801.30 1.07 1.42 ST358PWA332MLZ 3.3 0.152 0.167 62 0.5400.8001.10 0.923 1.23 ST358PWA472MLZ 4.7 0.231 0.254 46 0.3800.6500.880 0.788 1.06 ST358PWA682MLZ 6.8 0.287 0.316 44 0.3500.5900.800 0.676 0.915 ST358PWA822MLZ 8.2 0.378 0.416 39 0.2900.5000.680 0.640 0.849 ST358PWA103MLZ 10 0.440 0.459 33 0.2500.4500.600 0.564 0.729 1. When ordering, please specify testing code: ST358PWA103MLZ Testing:Z=COTS H=Screening per Coilcraft CP-SA-10001 2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc. 3. DCR measured on a micro-ohmmeter. 4. SRF measured using Agilent/HP 4395A network analyzer or equivalent. 5. DC current at which the inductance drops from its value without current. 6. Current that causes the specified temperature rise from 25°C ambient. 7. 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. 2011 Document ST583-1 Revised 04/14/11 Phone 800-981-0363 Fax 847-639-1508 E-mail [email protected] Web www.coilcraft-cps.com 2014 POWER INDUCTORS Power Inductor for Critical Applications – ST358PWA Typical L vs Current Typical L vs Frequency 100 10 µH 10 Inductance (µH) Inductance (µH) 100 3.3 µH 1.0 µH 1 10 µH 10 3.3 µH 1.0 µH 1 0.3 µH 0.1 0.01 0.1 0.3 µH Current (A) 1 10 0.1 0.1 1 10 Frequency (MHz) Current Derating 0.079 ±0.008 2,0 ±0,2 100 90 Part Marking 0.079 ±0.008 2,0 ±0,2 80 70 1st significant digit 60 50 0.057 max 1,45 40 30 20 10 0 25°C Percent of rated current 2nd significant digit Multiplier 120 110 100 Isat Irms -40 -20 Start Suggested Recommended Land Land Pattern Pattern Finish 0.057 1,45 0.030 max 0,75 0 20 40 60 80 100 120 140 Ambient temperature (°C) 0.087 2,2 0.069 max 1,75 Part Marking Part number ST358PWA-271 ST358PWA-421 ST358PWA-601 ST358PWA-821 ST358PWA-102 ST358PWA-152 ST358PWA-222 ST358PWA-332 ST358PWA-472 ST358PWA-682 ST358PWA-822 ST358PWA-103 Value 0.27 µH 0.42 µH 0.60 µH 0.82 µH 1.0 µH 1.5 µH 2.2 µH 3.3 µH 4.7 µH 6.8 µH 8.2 µH 10 µH 1st digit Red Yellow Blue Gray Brown Brown Red Orange Yellow Blue Gray Brown 2nd digit Violet Red Black Red Black Green Red Orange Violet Gray Red Black Multiplier Brown Brown Brown Brown Red Red Red Red Red Red Red Orange 0.014 min 0,35 Dimensions are in 0.041 1,04 inches mm Small surface blemishes are not unusual and do not adversely affect performance. Wire may be visible inside the voids. Acceptable void sizes: Top: 0.01 in / 0,254 mm × 0.01 in / 0,254 mm Sides: 0.02 in / 0,5 mm × 0.047 in / 1,2 mm Note: All marked parts have three dots. Black dot, used only on -601, -102 and ‑103 as second significant digit, may be very difficult to see. ® Specifications subject to change without notice. Please check our website for latest information. 1102 Silver Lake Road Cary IL 60013 © Coilcraft, Inc. 2011 Document ST583-2 Revised 04/14/11 Phone 800-981-0363 Fax 847-639-1508 E-mail [email protected] Web www.coilcraft-cps.com