SPX3940AT-5.0 SPX3940AT-5.0/TR SPX3940AT-L-1.8 SPX3940AT-L-1-8 SPX3940AT-L-1-8/TR SPX3940AT-L-2.5 SPX3940AT-L-3.3 SPX3940AT-L-3-3 SPX3940AT-L-3-3/TR SPX3940AT-L-5.0