Russell Mahon <> wrote: > It's worth noting that the quoted and calculate lifetimes apply to > electrolytics with full rated voltage applied. Aluminium > electrolytics die far quicker at extended temperatures when no > voltage is applied (which may be the opposite to what is expected > intuitively) Do you have some figures to support that? Does it apply when low voltages are applied or only very close to 0V? Is there an 'optimum derating' of voltage? Nigel -- Nigel Orr, Design Engineer nigel@axoninstruments.co.uk Axon Instruments Ltd., Wardes Road,Inverurie,Aberdeenshire,UK,AB51 3TT Tel:+44 1467 622332 Fax:+44 1467 625235 http://www.axoninstruments.co.uk This e-mail and any files transmitted with it ("E-mail") is intended solely for the addressee(s) and may contain confidential and/or legally privileged information. If you are not the addressee(s), any disclosure, reproduction, copying, distribution or other use of the E-mail is prohibited. If you have received this E-mail in error, please delete it and notify the sender immediately via our switchboard or return e-mail. Neither the company nor any individual sending this E-mail accepts any liability in respect of the content (including errors and omissions) and timeliness of the E-mail which arise as a result of transmission. If verification is required, please request a hard copy version -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu