SAN JOSE, CA – Sanmina-SCI Corp. today cut its quarterly revenue forecast and said earnings would be worse than expected because of weak demand for communications and high-end computers. The EMS firm lowered it estimate for revenue for the March quarter to about $2.6 billion, from its previous guidance of $2.65 billion to $2.75 billion. Non-GAAP earnings would also be below guidance, Sanmina said. Chief executive Jure Sola called the weakness short-term, saying business should improve in the second half.  Sanmina said inventories are expected to fall least $90 million in its second quarter, and cash and equivalents would rise least $100 million.