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INTERNATIONAL ATOMIC ENERGY AGENCYINSTRUMENTATION UNITSMD(SURFACE MOUNTED DEVICES) REPAIR1SMD(SURFACE MOUNTED DEVICES)REPAIRS. WIERZBINSKIFEBRUARY 1999INTERNATIONAL ATOMIC ENERGY AGENCYINSTRUMENTATION UNITSMD(SURFACE MOUNTED DEVICES) REPAIR2TABLE OF CONTENTSPAGE1. INTRODUCTION32. SMD ADVANTAGES43. SMD LIMITATIONS44. SMD DIALECT55. SMD SIZES AND SMD CONSTRUCTION OF THE SMD marking OF THE SMD SMD SMD CERAMIC MULTILAYER CHIP SMD TANTALIUM SMD DIODES AND SMD INTEGRATED DIMENSIONS OF SO - , VSO - , PLCC - AND QFB - CASES16INTERNATIONAL ATOMIC ENERGY AGENCYINSTRUMENTATION UNITSMD(SURFACE MOUNTED DEVICES) REPAIR31. INTRODUCTIONAt earlier eighties began a trend to replace a traditional through - hole technique with thesurface mounted technology (SMT) using surface mounted devices (SMD). The SMT, al-though intended in principle for automatic manufacturing only expand more and more, eveninto a hobby world.

MARKING OF THE SMD RESISTORS 7 5.2. SMD TRIMMPOTS 9 5.3. SMD CERAMIC MULTILAYER CHIP CAPACITORS 10 ... Surface mounted devices (SMD) are active and passive electronics components without ... RESISTOR IMPRINT 0 Ω (bridge) 000 1.0 Ω to 9.1 Ω XRX (i.e. 9R1)

  Surfaces, Marking, Resistor