ST358PWA 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.
2014 POWER INDUCTORS
Document ST583-1 Revised 04/14/11 Inductance2 DCR nom3 DCR max3 SRF typ4 Isat (A)5 Irms (A) 6 Part number1 ±20% (µH) (Ohms) (Ohms) (MHz) 10% drop 20% drop 30% drop 20°C rise 40°C rise 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. ■ 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 Power Inductor for Critical Applications ST358PWA 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
cps@coilcraft.com www.coilcraft-cps.com © Coilcraft, Inc. 2011 Specifications subject to change without notice. Please check our website for latest information. Power Inductor for Critical Applications – ST358PWA Document ST583-2 Revised 04/14/11 Typical L vs Current Typical L vs Frequency 0.1 100 0.1 1 10010 Inductance (µH) Frequency (MHz) 10 µH 1.0 µH 0.3 µH 3.3 µH 0.1 100 0.01 0.1 101 Inductance (µH) Current (A) 10 µH 0.3 µH 1.0 µH 3.3 µH -40 -20 02 04 06 08 0 100 140120 Ambient temperature (°C) Pe rcent of rated c urrent 120 110 100 Isat Irms 25° C Current Derating Dimensions are in 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 Part Marking Part number Value 1st digit 2nd digit Multiplier ST358PWA-271 0.27 µH Red Violet Brown ST358PWA-421 0.42 µH Y ellow Red Brown ST358PWA-601 0.60 µH Blue Black Brown ST358PWA-821 0.82 µH Gray Red Brown ST358PWA-102 1.0 µH Brown Black Red ST358PWA-152 1.5 µH Brown Green Red ST358PWA-222 2.2 µH Red Red Red ST358PWA-332 3.3 µH Orange Orange Red ST358PWA-472 4.7 µH Y ellow Violet Red ST358PWA-682 6.8 µH Blue Gray Red ST358PWA-822 8.2 µH Gray Red Red ST358PWA-103 10 µH Brown Black Orange 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. 0.057 1,45 max 0.079 ±0.008 2,0 ±0,2 0.079 ±0.008 2,0 ±0,2 Part Marking 1st digit significant 2nd significant digit Multiplier Start Finish Recommended Land Pattern 0.057 1,45 0.087 2,2 0.041 1,04 0.069 1,75 0.014 0,35 0.030 0,75 min max max Suggested Land Pattern