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RMBA19500A Datasheet(PDF) 5 Page - Fairchild Semiconductor |
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RMBA19500A Datasheet(HTML) 5 Page - Fairchild Semiconductor |
5 / 7 page ©2004 Fairchild Semiconductor Corporation RMBA19500A Rev. C Parts List for Test Evaluation Board (RMBA19500A-TB, G654188/G654942) Thermal Considerations for Heat Sinking the RMBA19500 The PWB must be prepared with either an embedded copper slug in the board where the package is to be mounted or a heat sink should be attached to the backside of the PWB where the package is to be mounted on the front side. The slug or the heat sink should be made of a highly electrically and thermally conductive material such as copper or aluminum. The slug should be at least the same thickness as the PWB. In the case of the heat sink, a small pedestal should protrude through a hole in the PWB where the package bottom is directly soldered. In either configuration, the top surface of the slug or the pedestal should be made coplanar with the package lead mounting plane i.e., the top surface of the PWB. Use Sn96 solder (96.5% Sn and 3.5% Ag) at 220°C for 20 seconds or less to attach the heat sink to the backside of the PWB. Then, using Sn63, the package bottom should be firmly soldered to the slug or the pedestal while the pins are soldered to the respective pads on the front side of the PWB without causing any stress on the pins. Remove flux completely if used for soldering. Part Value Size (EIA) Vendor(s) L1, L2, L4 5.6nH .06" x .03" Toko (LL1608-F5N6) L3 10nH .085" x .060" Coilcraft (0805HT-10NTKBC) C1 10pF .067" x .036" Murata (GRM39COG100J050AD) C9 2.2pF .042" x .022" Murata (GRM36COG2R2J050BD) C3, C4, C5 1500pF .067" x .036" Murata (GRM39Y5V152Z50V) C10 2.0pF Murata (GRM36COG2R20J050BD) C2 15.0pF .042" x .022" Murata (GRM36COG150J050) C8, C11, C14, C15 4.7µF .134" x .071" TDK (C3216XR1A475KT) C6, C7 0.1µF .183" x .054" Murata (GRM39Y5V104Z50) R1, R5 20 Ω .069" x .037" IMS (RCI-0603-20R0J) R2, R7 1000 Ω .069" x .037" IMS (RCI-0603-1001J) R3 910 Ω .069" x .037" IMS (RCI-0603-9100J) R4 30 Ω .069" x .037" IMS (RCI-0603-30R0J) R6 1.1K Ω .069" x .037" IMS (RCI-0603-1101J) R8 390 Ω IMS (RCI-0603-3900J) R9 300 Ω IMS (RCI-0603-3000J) U1 RMBA19500-58 .31" x .41" Fairchild HS Heatsink Fairchild, G655548 P1 Terminals 3M (2340-5211TN) J1, J2 SMA Connectors E.F. Johnson (142-0701-841) Board FR4 Fairchild Dwg# G654187/G654941 |
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