agilent HDSP-501B, hdsp-503b 14.2 mm (0.56 inch) general purpose blue seven segment displays reliability data sheet description the following cumulative test results have been obtained from testing performed at agilent technologies in accordance with the latest revision of mil-std-883. agilent tests parts at the absolute maximum rated conditions recommended for the device. the actual performance you obtain from agilent parts depends on the electrical and environmental characteristics of your application but will probably be better than the performance outlined in table 1. table 1. life tests demonstrated performance stress test total units units failure rate colors stress test conditions device hrs. tested failed mtbf (% /1k hours) blue low t a = -40 c 23,000 23 0 23,000 < 4.34 temperature i f = 30 ma operating life blue high temp. t a = +55 c 23,000 23 0 23,000 < 4.34 operating life i f = 30 ma blue wet high t a = +85 c 23,000 23 0 23,000 < 4.34 temperature r.h. = 85% operating life i f = 10 ma point typical performance table 2. environmental tests units units test name reference test conditions tested failed solder heat agilent 1x wave solder at 245 c for total of 3 seconds 1000 0 resistance internal test and 5 temperature cycles @ -55/100 c, 15 min dwell at both extreme conditions, 5 min. transfer time temperature mil-std-883 -40 c to +85 c, 15 min. dwell, 900 0 cycle method 1010 5 min. transfer, up to 20 cycles humidity jis c 7021 85 c, 85% rh, 1000 hours 23 0 storage method b-11
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