? coilcraft, inc. 2009 these parts are preproduction products for electrical evaluation only. specification subject to change without notice. flyback transformer document 708 document 708 revised 10/28/08 inductance inductance leakage part at 0 adc 1 at i pk 2 dcr max inductance 3 turns ratio i pk 2 number 10% (h) min (h) (ohms) max (h) pri : sec pri : bias (a) output 4 GA3502-BL 800 720 1.283 (pins 1 ? 3) 6.60 1 : 0.035 1 : 0.06 0.75 110 v, 0.4 a 0.146 (pins 5 ? 6) 0.361 (pins 12 ? 7) 1. inductance is for the primary (pins 1 ? 3 ), measured at 250 khz, 0.3 vrms. 2. peak primary current drawn at minimum input voltage. 3. leakage inductance is for the primary winding (pins 1 ? 3 ) with the secondary winding shorted. 4. output is for the secondary. bias winding output is 18 v, 20 ma. 5. electrical specifications at 25c. refer to doc 362 ?soldering surface mount components? before soldering. for maxim off-line led driver core material ferrite terminations rohs tin-silver over tin over nickel over phos bronze. other terminations available at additional cost. weight 21.3 g ambient temperature ?40c to +125c storage temperature component: ?40c to +125c. packaging: ?40c to +80c resistance to soldering heat max three 40 second reflows at +260c, parts cooled to room temperature between cycles moisture sensitivity level (msl) 1 (unlimited floor life at <30c / 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 24 parts per tray pcb washing only pure water or alcohol recommended ? designed for pwm dimming of high-brightness leds ? bias winding output: 18 v, 20 ma ? 400 v input; 110 v, 0.4 a output ? 1500 vrms primary and bias to secondary isolation 0.551 14,0 max max 0.004 / 0,10 mm 1.053 26,75 1.169 29,7 1.024 26,0 1.10 28,0 0.108 2,75 0.043 1,1 0.079 2,0 0.157 4,0 0.157 4,0 recommended land pattern 0.657 16,7 1.285 32,65 max 1 1 12 12 6 6 7 7 dot indicates pin 1 6 5 7 bias pri sec 12 1 2 3 dimensions are in inches mm
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