* Yen briefly hits 10-month low vs euro; Aussie at 20-yr peak
* Dollar hesitates before March 11 high of 83.30 yen
* Euro gains limited before Irish stress test
By Natsuko Waki
TOKYO, March 31 (Reuters) - The yen hit a fresh 10-month low versus the euro on Thursday and touched a three-week trough against the dollar as expectations mounted that Japan would lag the euro zone and U.S. central banks in raising interest rates.
The dollar's advance slowed into the Asian afternoon with the March 11 high of 83.30 yen proving tough resistance, while selling by Japanese banks and foreign players along with some fiscal year-end yen demand from Japanese exporters pushing the pair close to the 100-day moving average around 82.60.
The yen was unable to recover strongly, however, as hawkish comments by euro zone and U.S. central bank officials reinforced the view that the global economic recovery is on track, bolstering risk-friendly sentiment at the end of a volatile quarter.
Anticipation that Japan would buck the global tightening cycle and leave interest rates low to support its quake-hit economy is encouraging players to sell the yen to fund higher-yielding investments, in a revival of the carry trade that flourished before the credit crisis began in 2007.
"Interest rate differentials are the strongest driver of the market. The Fed is starting to communicate to the market that QE2 is ending in June. The focus is now moving to the exit from the strategy," said Teppei Ino, analyst at Bank of Tokyo Mitsubishi UFJ.
"The dollar is catching up with the euro in terms of interest rate expectations, as euro rate hike expectations have been largely priced in."
The dollar rose to 83.21 yen before stepping back to 82.71. At Thursday's high, the dollar was up 9 percent from its record low of 76.25 yen set on March 17 before G7 central banks intervened in a rare coordinated move to stem the yen's rise.
However, dollar buying fizzled in the face of key resistance at 83.30 and offers from Japanese exporters at 83.50. A break of the 100-day moving average around 82.60 may trigger more selling.
The euro rose as high as 117.54 yen , its highest since May 2010, bringing its gains this year to 8 percent.
Jefferies analyst Naomi Fink said the start of the new fiscal year could bring more yen selling although it was unlikely to fall in a straight line.
"I see a trend of greater tolerance. Households and companies have a lot of cash and they will need to invest in overseas ventures. Overseas investments in the new financial year should weaken the yen a bit more," she said.
The euro rose 0.2 percent to $1.4156 , facing resistance at $1.4220 and $1.4248. BNP Paribas is recommending buying euros from $1.4120 to target $1.45 with a stop at $1.4020.
The Australian dollar was the main beneficiary of flows into higher-yielders, hitting a fresh 29-year high of $1.0348 after favourable retail sales and credit growth data.
The dollar index fell a quarter percent to 75.903 .
EURO'S CHALLENGES
Wednesday's comments from top Federal Reserve officials added to expectations that the central bank is nearing the end of its current round of stimulus. [
]Still, the European Central Bank is set to be the front runner in the tightening cycle, which is helping the euro across the board.
ECB Executive Board member Lorenzo Bini Smaghi said on Thursday the central bank's policy is to gradually raise interest rates, while another board member, Juergen Stark, said rates are exceptionally low, cementing expectations for an April interest rate hike.
"The barrage of ECB commentary shows a central bank wanting to keep liquidity operations separate from rate policy; the agenda has already moved on to how hawkish Mr. (ECB President Jean-Claude) Trichet will sound at the April 7 press conference," BNP Paribas said in a note to clients.
Credit Agricole said the euro may struggle to advance further against the dollar, however, given that the euro zone rate outlook is largely priced in.
The bank said the correlation between euro/dollar and the three-month eurozone-U.S. interest rate spread stands at 0.95, showing an extremely close relationship.
Investors are also nervous about the risk that the euro zone debt crisis may spread to other peripheral countries.
Ireland will announce the results of stress tests later on Thursday that are expected to signal the effective nationalisation of the entire financial system. [
] (Additional reporting by Masayuki Kitano; Editing by Edmund Klamann)