Hi Gus,
This is the definition I follow:  

VRRM - allowable instantaneous forward or reverse voltage including
transients. The rated values of
VDRM(max) and VRRM(max) may be applied
continuously over the entire operating junction
temperature range, provided that the thermal
resistance between junction and ambient is kept
low enough to avoid the possibility of thermal
runaway.

VRRM: Peak Repetitive Reverse Voltage -
The peak repetitive reverse voltage rating is the maximum peak
reverse voltage that may be continuously applied to the main terminals
(anode, cathode). 

Hope it helps
Best regards
		Luis



-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf
Of Gus Salavatore Calabrese
Sent: 31 March 2006 14:32
To: Microcontroller discussion list - Public.
Subject: [EE]:PIV versus Vrrm

I am used to seeing diode bridges specified with PIV ( peak inverse  
voltage ).
I have now seen some specified with Vrrm.  What does this Acronym mean ?

Best

POD
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist