Panasonic is part of a large worldwide groupselling relays and associated switching products under different brand names in different territories.The conditions of use in some territories may differ from those customary in Europe. In particular there are often major differences in regard to national and international specifications, such as UL, CSA, VDE, SEV, EVE, SEMKO, etc. Thus, when considering contact loads as stated in this catalogue (e.g. 10 A, 30 VDC for the SP relay) its hould be understood that these values are not necessarily an absolute maximum but tested ratings. Mostly the stated value has been tested for a certain life expectancy as stated by the manufacturer or the respective test house. Thus, under different conditions, the stated “maximum” may, in practice, be safely exceeded.
lie ira products. the ility ich system t,o part, ich has
co tin tio certain tim lty the cifie tim period.
The one such ctive TTF. Degree Reliability
D egree lia ility rce ratio lia bility.
4. rts ith ilu rates, “fa ilu it) 10-9 often used
inste ilu rate.AUTOMOTIVE CAUTIONS FOR USE
1.
5. Failure Rate
Failure rate clu ean ilu rate ilu rate. MTTF
M cro ean Tim ilu re.
2. given ich the llo tio true:
1 t%
In nera B[1 ore often used. ica tim riod ich system s
n lly cid repair. ica tim riod until lty TTF lly lie to
u ira cts such rts and terials.
Failure rate often rce t/h rs.
3. ean ilu rate fin llo ean ilu rate Total
fa ilu t/to tin urs
In nera ilu rate ilu rate. som ore practical lia ility tha TTF. Safe Life
S afe life inve rse lia bility. MTBF
M cro ean Tim etw ilures.
M lls long can used ith need repair. exa none lig ile 100 hours, f
re lia ility fin in, 100 tim /10 100% alive, the lia ility 3/1 30% The JIS
Z sta fin the lia ility llo The ility ich syste vid spe cifie d
fu tio inte tio cifie con ditions. rce t/co lly used relays. tim used rvice lifetim before
failure.
188 ds_x61_en_relay_technical_information_010113J
