SAMWHA ELECTRONICS 123 Technical Data EE Cores RM Cores RM4 RM5 RM6 RM7 RM8 RM10 RM12 RM14 EE5555A EE5555S EE5747S EE6565S EE8076S EER2429S EER2828N EER2828S EER2834N EER2834S EER3019N EER3032S EER3435S EER3540S EER3541S EER3543S EER3940S EER4042S EER4045S EER4214S EER4242B EER4242KF EER4242S EER4445S EER4535S EER4950S EER4954S EER5455S EER6062S EFD2025N EFD2124S EFD2525S EFD2525V EFD3030S EFD3033V EFD3130S EFD5050S EPC1920S EPC2525S EE0808S EE0908S EE1313S EE1614S EE1616S EE1916S EE2020S EE2525F EE2525W EE2834S EE3030S EE3232S EE3335S EE3528S EE4035S EE4133N EE4242B EE4242S EE4740S EED Cores EED2820S EI Cores EI1614S EI1916S EI2218S EI2820S EI3329S EI4035S EI5040S EI6044S EI7064S PQ Cores PQ2016S PQ2020S PQ2620S PQ2625S PQ3220S PQ3230S PQ3535S PQ4040S PQ5050S DS Cores EP Cores EP5D EP7 EP10 EP13 EP17 EP20 EOP9.5 DS3019 DS3119W DS3319 DS4025 EFD Cores EER Cores EFD1515S EFD1820S EFD2020S EER0905S EER1105S 124 SAMWHA ELECTRONICS EE0808S Parameter Symbol Value 2.960 19.7 6.7 Unit mm-1 mm mm2 mm3 mm2 mm2 g Core constant Effective path length Effective area Effective volume Center leg area Winding area Weight of set C1 le Ae Ve Ac Aw W 131 6.0 14.0 0.7 Measuring conditions - Coil: 2-UEWФ 0.16mm, 100Ts - Frequency: 1kHz - Osc Level: 0.1V Calculated Output Power Circuit type (Unit : W) Switching Frequency 20kHz 1 50kHz 1 100kHz 2 250kHz Push-pull converter Flyback converter Forward converter 3 1 2 0.3 0.4 0.4 0.6 0.6 1 Note : 1) Core loss is assumed to be approx. 0.1W/cm . 3 2) Temperature rise should be considered for design before choosing the final core s