DS050LTA DS05-127-2-02BK-SMT-TR DS05-127-2-03BK-SMT-TR DS05-127-2-04BK-SMT-TR DS05-127-2-06BK-SMT-TR DS05-127-2-08BK-SMT-TR DS05-127-2-10BK-SMT-TR DS0531S DS0531SBM 8MHZ DS0531SR 40M