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+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. 2013 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. Forward Converter Transformer Document 674 Document 674 Revised 12/15/11 1. When ordering, please specify a packaging code: GA3291-ALD Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic tape (175 parts per full reel). 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. Leakage Input Input Output Part Inductance2 DCR max (Ohms)3 inductance4 voltage Turns ratio5 filter filter number1 min (µH) pri sec max (µH) range (V) pri : sec Output inductor inductor For Akros AS1130 PoE Controller Core material Ferrite Terminations RoHS tin-silver over tin over nickel over phos bronze. Other terminations available at additional cost. Weight 10.7 g Ambient temperature –40°C to +125°C Storage temperature Component: –40°C to +125°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 Packaging 175 per 13″ reel Plastic tape: 44 mm wide, 0.4 mm thick, 32 mm pocket spacing, 11.9 mm pocket depth PCB washing Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf.
- Developed for Akros Silicon AS1130, 30 W PoE Controller with Integrated DC-DC Conversion
- Designed for forward topology operating at 350 kHz
- 1500 Vrms, one minute isolation from primary to secondary Dimensions are in inches mm Pri Sec Primary is pin 1 to pin 3.Terminal 2 is for internal connection only. Do not connect terminal 2 to ground or any circuitry. 2. Inductance is measured at 300 kHz, 0.6 Vrms, 0 Adc. 3. DCR for the primary is measured from pin 1 to pin 3. 4. Leakage inductance is for the primary (pin 1 to pin 3) and is measured with the secondary shorted. 5. Turns ratio is based on the entire the primary winding (pin 1 to pin 3). 6. Electrical specifications at 25°C. Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 0.425 10,80 1.148 29,15 0.969 24,6 max 0.004 / 0,10 max Recommended Land Pattern 0.810 20,57 0.827 21,0 0.118 3,00 0.118 3,00 0.069 1,75 0.028 0,70 max 121 0.930 23,62 0.130 3,3 Dot indicates pin 1 GA3291- AL XXXX Y Parts manufactured prior to December 2011 mayb e marked differently.