usa: jmk inc 15 caldwell dr. amherst, nh 03031 ph : 603 886-4100 fx: 603 886-4115 email:info@jmkfilters.com eur jmk inc glasgow g13 1dn scotland uk ph: 44-(0) 7785310729 fx: 44-(0) 141-589 1884 ZF-1438-30 jmk, inc. red #10 black #10 6-32 insert 2 plcs 3.00 2.50 1.2 5 0.25 2.500 0.62 11.5 0.5 0.38 the ZF-1438-30 filter has been designed to operate with telecommunication systems. this filter is very similar to the zf-1398-20 except that the enclosure is different and the current rating for the 1438 is 30 amps rather than 20 amps. this filter was specifically de- signed using feed-through capacitors in order to attenu- ate the high frequency conducted emissions as well as help maintain the radiated emissions which can escape the enclosure along the power cord.. the filter insertion loss is up to 60 db and this perform- ance is held to 1.0 gigahertz and beyond. the capacitors are designed to meet and have passed the csa capacitor ?dump? test in other filter applica- tions. order p/n: ZF-1438-30 operating voltage = 48vdc operating current = 30 amp operating temperature = -40 to 85 c. diel. withstanding (line - case) = 1500 vdc diel. withstanding (line - line) = 1500 vdc agency approvals = ul mating connector = p/n 48ca45 mfg by w.t. storey co. mil-std-704 compliant red (+) black (-) 2.27 0.93 2.500 ?0.190 2 plcs recommended panel cutout 70 60 50 40 30 20 10 .1 .4 1 4 10 40 100 insertion loss (db) 0 .2 .7 2 7 20 70 frequency (megahertz) cm 400 1000 200 700
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