RA7231_16 COILCRAFT | Alldatasheet
Document overview
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Technical content
+1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-europe.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2016 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Dual Inductor for Class D RA7231-AL Document 1254-1 Core material Ferrite Terminations RoHS compliant tin-silver (96.5/3.5) over copper. Weight 12.3 g Ambient temperature –40°C to +125°C with Irms current Maximum part temperature +165°C (Ambient + temperature rise) Storage temperature Component: –40°C to +165°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 Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity) Failures in Time (FIT) / Mean Time Between Failures (MTBF) 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 Tape and reel packaging 150/13″ reel Plastic tape: 32 mm wide, 0.5 mm thick, 24 mm pocket spacing, 16.1 mm pocket depth PCB washing Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. 1. When ordering, please specify packaging code: RA7231-ALD Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic tape. B = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter D instead. 3. DCR is for each winding, measured on a micro-ohmmeter. 4. SRF measured using Agilent/HP 8753D network analyzer. 5. DC current (typical) at which the inductance drops the specified amount from its value without current. 6. Current applied to windings at the same time 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. Part Inductance2 DCR max3 SRF typ4 Isat (A)5 Irms (A)6 number1 ±10% (µH) (mOhms) (MHz) 10% drop 20% drop 30% drop 20°C rise 40°C rise
- AEC-Q200 Grade 1 qualified
- Dual inductors for use in Class D output filters
- A single shielded package contains both coils.
- Very low magnetic coupling
- Designed for 40 Watts into 2 Ohm load
- Less than 1% drop in inductance up to 12.3 A Document 1254-1 Revised 04/05/16
+1-847-639-6400 sales@coilcraft.com +44-1236-730595 sales@coilcraft-europe.com +886-2-2264 3646 sales@coilcraft.com.tw +86-21-6218 8074 sales@coilcraft.com.cn + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2016 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Class D Dual Inductor – RA7231-AL 0.1 1.0 10010 Current (A) Inductance (µH) Document 1254-2 Document 1254-2 Revised 04/05/16 L vs Current Dimensions are in inches mm RA7231-AL XXXX Y Dot indicates pin 1 0.551 14,00max 0.610 15,50max 0.630 16,00max 0.134 3,4 0.094 2,4 0.303 7,7 0.248 6,3 0.126 3,2 0.071 1,8 0.102 2,6 0.102 2,6 0.122 3,1 0.122 3,1 0.209 5,3 0.224 5,7 Recommended Land Pattern CL CL CL CL 0.031 0,8 0.047 1,2 0.004/0,10 L1 L2