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| introduction rfe international, inc. offers a wide range of chip resistors to meet your application requirements. they are made with metal glazed thick film on a high purity ceramic substrate which is overcoated for stability and protection. these resistors are lead free. the rmf series fusible resistor is ideal for circuits where a predictable fusing time is important. c2bb06 rev 2009.2.23 ratings dimensions par t number example rmf 50 r - 4r7 - j derating cur ve d h l c w g la ss p as si va tio n operating temp. range -55c ~ +155 s u r fac e m o u n t rm f se rie s: fus ib le th ick fil m s ur fac e m ou nt r e s is to r s r f e i n t e r n a t i o n a l ? t e l : ( 9 4 9 ) 8 3 3 - 1 9 8 8 ? f a x : ( 9 4 9 ) 8 3 3 - 1 7 8 8 ? e - m a i l s a l e s @ r f e i n c . c o m ? standard resistance range is 0.2 thru 470 on eia s tandard value t able e-24 ww ? t emperature coefficient + 400 ppm/c ? standard resistance t olerance +5% 100 80 60 40 20 0 -55 -30 0 20 40 60 80 100 120 140 160 180 a m b ie n t t e m p e ra tu re ( c ) r a t e d l o a d ( % ) 70c 155c w 0. 2 ~ 0. 47 0. 5 ~ 1 1. 1 ~ 20 22 ~ 1 00 11 0 ~ 47 0 r m f 04 ( 04 02 ) 0. 06 25 w 50 v 10 0v -- -- 2. 4w 2. 2w 2w 1. 8w r m f 06 ( 06 03 ) 0. 1w 50 v 10 0v 2. 5w 2. 4w 2. 2w 2w 1. 8w r m f 10 ( 08 05 ) 0. 12 5w 15 0v 30 0v 3w 2. 6w 2. 4w 2. 1w 2w r m f 12 ( 12 06 ) 0. 25 w 20 0v 40 0v 3. 75 w 2. 88 w 2. 5w 2w 1. 75 w r m f 25 ( 12 10 ) 0. 33 w 20 0v 40 0v 4. 5w 4. 1w 3. 5w 3. 2w 3w r m f 50 ( 20 10 ) 0. 5w 20 0v 40 0v 5. 5w 5w 4w 3. 5w 3. 2w r m f 1w ( 25 12 ) 1. 0w 20 0v 40 0v 6. 5w 6w 5w 4. 5w 4w ty pe p ow er r at in g m ax w or ki ng vo lta ge m ax o ve rlo ad vo lta ge 60 s ec on d f us in g p ow er w w w w r m f 0 4 ( 0 4 0 2 ) 1 .0 + 0 .1 0 .5 + 0 .0 5 0 .3 5 + 0 .0 5 0 .2 0 + 0 .1 0 .2 + 0 .1 r m f 0 6 ( 0 6 0 3 ) 1 .6 + 0 .2 0 .8 + 0 .1 5 0 .5 0 + 0 .1 0 .3 0 + 0 .2 0 .3 + 0 .1 5 r m f 1 0 ( 0 8 0 5 ) 2 .0 + 0 .2 1 .2 5 + 0 .1 5 0 .5 0 + 0 .1 5 0 .4 0 + 0 .2 0 .3 + 0 .1 5 r m f 1 2 ( 1 2 0 6 ) 3 .2 + 0 .2 1 .6 + 0 .1 2 0 .6 0 + 0 .1 5 0 .4 5 + 0 .2 0 .4 + 0 .2 r m f 2 5 ( 1 2 1 0 ) 3 .2 + 0 .2 2 .5 + 0 .2 0 .6 0 + 0 .1 5 0 .5 0 + 0 .2 0 .5 + 0 .2 r m f 5 0 ( 2 0 1 0 ) 5 .0 + 0 .2 2 .5 + 0 .2 0 .6 0 + 0 .1 0 .6 0 + 0 .2 0 .6 + 0 .2 r m f 1 w ( 2 5 1 2 ) 6 .3 + 0 .2 3 .1 + 0 .2 0 .6 5 + 0 .1 0 .6 0 + 0 .2 0 .6 + 0 .2 c d d im e n s io n s ( m m ) t y p e l w h r o h s
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