general power transformer < pin type: ei series> type: EI-22 please refer to the sales offices on our website for a representative near you www.sumida.com 1 / 1 product description ? 23.0 17.5mm max.(l w), 21.0mm max. height. ? custom design is available. feature ? max. operating frequency 300khz. max operating power 18.0w(300khz),7.8w(100khz). ? ideally used in switching regulator, el inverter and power factor correction choke. ? rohs compliance dimensions (mm) schematics (bottom) 1. for general transformer 2.for pfc choke ? s? is winding start ? s? is winding start specification (for general transformer) specification (for pfc choke) rated current: the dc current at which the inductance decreases to 90 % of it?s initial value or when t=40 , whichever is lower(ta=20 ). sample no. inductance (1-3) 1khz/1v d.c.r. (6-8) (m max.) d.c.r. (7-9) (m max.) hi-pot(1,2,3,4,5-6,7,8,9,10) (50/60hz) 3389-t171 2.2mh 20% 21 22 ac1500vrms/1min. sample no. inductance (1,2-4,5) 1khz/1v d.c.r. (2-4) (m max.) rated current (1,2-4,5) 3389-t180 60h 20% 780 4.0a 17.5 max. 21.0 max. 4.8 -0.5 +1.0 12.00.5 1 5 6 10 4.0 4.0 4.0 4.0 0.8-0.05 +0.1 23.0 max. 0.3 s s s s s s
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