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SM1144BDV 数据表(PDF) 7 Page - Pletronics, Inc. |
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SM1144BDV 数据表(HTML) 7 Page - Pletronics, Inc. |
7 / 2 page SM76H Series 2.5 V CMOS Clock Oscillators March 2008 www.pletronics.com 425-776-1880 7 Mechanical (obsolete version): The cover is no longer being supplied over this part. This part is made with a hermetically sealed SM77H series oscillator. This part is now exposed. The cover has been deleted, the cover was causing problems with the newer high temperature RoHS lead free processes. The cover purpose was only cosmetic. All parts ordered in 2008 will be made in the new fashion. There is no change in electrical properties. Pletronics does recommend that all designs should transition to the SM77H ceramic part. This is the base part of the SM76H. Inches mm Cover: Centered on the base 304 Stainless Steel 0.010 inch (0.25μm) Electroless Nickel Plated 1 μinch (25 μm) typical Label: White Kapton with Black Letters –or-- Laser marked lettering FR4 PCB Base: Solder masked All via holes tented on bottom Copper Clad ½ oz. Typical Gold plated 0.02 μinch (0.5 μm) Pin 3 Ground plane is typical Not to scale 1 Typical dimension A 0.351 +_0.003 8.91 +_0.07 B 0.356 +_0.005 9.04 +_0.13 C 0.103 +_0.005 2.62 +_0.13 D1 0.324 8.23 E1 0.316 8.03 F1 0.050 1.27 G1 0.040 1.02 H1 0.059 1.50 I1 0.020 0.51 J1 0.040 1.02 K1 0.200 5.08 L1 0.026 typical 0.66 • The package is not hermetically sealed. • The sides are intentionally left open to permit cleaning material to freely flow in the package, thus minimizing the accumulation of contaminants during cleaning processes. • The internal part of the package must be thoroughly dry before operating. |
类似零件编号 - SM1144BDV |
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类似说明 - SM1144BDV |
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