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LM257X-H1000 데이터시트(PDF) 1 Page - PCA ELECTRONICS INC. |
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LM257X-H1000 데이터시트(HTML) 1 Page - PCA ELECTRONICS INC. |
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1 / 1 page E L E C T R O N I C S I N C . Thru-Hole Power Inductor TEL: (818) 892-0761 FAX: (818) 894-5791 http://www.pca.com PCA ELECTRONICS, INC. 16799 SCHOENBORN ST. NORTH HILLS, CA 91343 • Optimized for National’s LM257X Series • Low loss material ensures operation in high frequency switching converters, such as Buck, Boost or as output averaging filter inductor • Also suitable for use in high quality filter applications • Add “-LF” after part number for Lead-Free • 52 KHz Switching Frequency • Low Cost Inductor EPIXXXXXXAC5 & EPIXXXXXXAC5-LF Product performance is limited to specified parameters. Data is subject to change without prior notice. Primary Specification Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25 CSIXXXXXXAC5 Rev. 4 7/27/06 FT 260 437 542 757 1093 Induct. (µH ± 20%) @ 0 Adc DCR ( Ω Typ.) .090 .117 .210 .247 .297 Vt1 (V-µSec) 52 KHz 230.8 230.8 230.8 230.8 230.8 Induct. (µH 10%) @ Idc 220 330 470 680 1000 Part Number EPI221302AC5(-LF) EPI331302AC5(-LF) EPI471202AC5(-LF) EPI681132AC5(-LF) EPI102951AC5(-LF) Idc (mA) 3000 3000 2000 1300 950 National Semiconductor Chip LM257X-H220 LM257X-H330 LM257X-H470 LM257X-H680 LM257X-H1000 @ Vt1 °C (Typ.) 23 26 20 12 9 Temp.Rise Core Loss 510 280 210 150 110 @ Vt1 (mW) Package AC5 Applications +Vin +5V Regulated Output Load LX µH D1 1N5822 Cin Cout Feedback Output Vsw On/Off Gnd LM257X + + 7V-40V (60V for HV) Unregulated DC Input Package AC5V Package AC5H 1.400 Max. (35.56) .110/.150 (2.79/3.81) 1.300 (33.02) .500 (12.70) .700 (19.78) .500 (12.70) Pad Layout .060 Ø (1.52) .625 (15.75) .375 ± .125 (9.53 ± 3.18) 1.300 Max. (33.02) Pad Layout .500 (12.70) .060 Ø (1.52) .700 Max. (19.78) .500 (12.70) .375 ± .125 (9.53 ± 3.18) 1.300 Max. (33.02) Pad Layout 1.100 (27.94) .060 Ø (1.52) 1.300 Max. (33.02) 1.100 (27.94) For no header version : add “V” for Vertical Mount and add “H” for Horizonal Mount Notes : 1. Lead Finish 2. Peak Solder Rating (for wave solder process Only) 4. Weight 5. Packaging Information (Tube) EPIXXXXXXAC5 SnPb 225°C 51 grams TBD pcs / tube EPIXXXXXXAC5-LF Hot Tin Dip (Sn) 260°C 51 grams TBD pcs / tube |
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