the models cns 020 and cns 021 resistors incorporate an ultrastable thin film element into the rck02 form factor thereby extending the existing range capability. dimensions in mm specifications performance mechanical .. substrate... alumina resistive element... passivated nichrome terminal leads... sn pb on cu alloy protection... epoxy coating electrical ... ohmic value range... 100 k ? ... 10 m ? (lower on request) resistance tolerance... 0,01 % tightest 1% looset temperature coefficient ... of resistance... 10 ppm/? standard (?5?, +125?) 5 ppm/? on request (0?, +70?) power rating... 0,25 w at +70? 0,125 w at +125? derating 0 w at +155? maximum working voltage... 300 v (higher on request) climatic ... operating temperature ... range... ?5? +155? marking in clear : series, model, sfernice trademark and manu- facturing code. on back side : ohmic value (in ? ), tolerance (in %). cns 020 cns 021 electrical diagram series model cns 020 021 020 ohmic value 100 k ? tolerance 0,02% 0,01 % 0,02 % 0,05 % ?,1 % 0 ? % ordering procedure 020 021 high precision resistors cns data sheet e 2/4.936 - 10499 4-46 5,08 0,508 3,17 min. 6,62 max. 0,254 2,54 max. 8,1 3,81 0,508 3,17 min. 6,62 max. 0,254 2,54 max. 8,1 tests overload 2,5 un / 5 s u max. < 2 un 0,01 % 0,05 % 0,05 % 0,01 % 0,01 % 0,01 % 0,01 % 0,01 % 0,05 % 0,02 % 0,05 % 0,05 % 0,02 % 0,02 % 0,02 % 0,05 % 0,01 % 0,01 % 0,01 % 0,01 % 0,05 % i. resist. >10 2 m ? 0,05 % i. resist. >10 2 m ? 0,05 % 0,05 % 55 c/+155 c 5 cycles cei 68-2-14 test na cei 68-2-21 test ua (pulling) ub (bending) uc (twisting) +260 c / 10 s cei 68-2-20a test tb (met 1a) 10 hz to 500 hz 10 g. 6 hours met b4 cei 68-2-6 test fc 55 c / +155 c 6 cycles 95% rh 85mbar cei 68-2-61 56 days 95% rh + 40 c cei 68-2-3 1000 hours pn at 70 c 90 /30 1000 hours / +155 c cei 68-2-2 test b temperature cycling terminal strength resistance to solder heat vibration climatic sequence moisture load life high temperature storage conditions requirements nfc 83-220 cecc 40 300 mil r-55182e drifts max. 4 thin film products
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