UPDATE 2-Amphenol Q3 profit tops Street

* Q3 EPS $0.47 vs est $0.43

* Forecasts Q4 rev above estimates

* Revenue down 17 pct (Adds analyst comments, updates share movement)

By Bhaswati Mukhopadhyay

BANGALORE, Oct 15 (Reuters) - Amphenol Corp (APH.N), a maker of electronic and fiber optic connectors, reported quarterly results that beat Wall Street expectations, driven partly by growth in mobile devices, and forecast fourth-quarter revenue above analysts' expectations.

Shares of the company, which have gained 72 percent year to date, fell 4 percent to $39.64 Thursday morning as investors were expecting a stronger December quarter for the company.

"Their sales guidance on a sequential basis has been weaker than expected," said Amit Daryanani of RBC Capital Markets said.

The company, which has historically seen a 4 percent rise in sales sequentially, forecast only a 2 percent growth in sales, he added.

Daryanani, however, said the stock should sustain at 20 to 21 times multiple on a P/E basis, "which would mean that the stock should work toward $45 by the end of the year."