GA3291-AL COILCRAFT | Alldatasheet
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© Coilcraft, Inc. 2009 Specifications subject to change without notice. Please check our website for latest information. Forward Converter Transformer Document 674 Document 674 Revised 10/28/08 1. When ordering, please specify a packaging code: GA3291-ALD Packaging: D =1 3″ 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 Inductance 2 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. 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 Only pure water or alcohol recommended Developed for Akros Silicon AS1130, 30 W PoE Controller with Integrated DC-DC Conversion Designed for forward topology operating at 350 kHz 1500 Vrms 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 connected 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 CCIXXXX