ur cylindrical ultra high ohmic resistors,thick flm,non-inductive willow technologies ltd. f offers urfs eriesftofultrafhighfohmicfoffrequirementsfatffreasonablefprices, anfepoxyfconformalfcoatf,fwhichfisfveryfgoodfhumidityfprotectionf,fgoodfvoltagefoffcoefcient. ultra high ohmic high voltage high frequency resistors g? , t? ur precision high ohmic resistor, the main usage ; * resistance rating : 1g? to 100t? * ncr design : non-contact resistance design between resistives and termination cap ,there is 3rlab's unique of conductive pad. +ffffcustomfdimensionf&fohnicfvaluefavailablefuponfrequestff(100t?ffavailablefonfUR3ffasfcustomfrequirement) 1)fffwattagefinf25focffffff 2)fffvdc,fvrmsfffff **fffsingleffimpulsefstandard model nr. 1) wattage 2) max. continuous oper. volt[kv] **impulse voltage 1.2/50 sec resistance [ ohm ] min. max. smd type dimensions in millimeters (inches) a b c ur1 0.5 2.0 4.0 0.7gfff50g n/a 15+/-1.5f (.590) 5.0+/-1.5f (.197) 0.8 ur1.7 0.7 5.0 10.0 0.7gffff1t n/a 25.4+/-1.5f (1.0)f 5.0+/-1.5f (.197) 0.8 ur2 1.0 5.0 10.0 0.7gffff1t available 24.0+/-1.5f (.944)f 8.0+/-1.0f (.314)f 1.0 ur2.5 1.5 10.0 20.0 1gffffff10t available 39.0+/-1.5f (1.50) 8.0+/-1.0f (.314)f 1.0 UR3 2.0 12.0 24.0 1gffffff10t available 52.0+/-1.5f (2.04) 8.0+/-1.0f (.314) 1.0 ur-series of resistors are desinged to help provide current pulse limiting, detection of trickle current . tolerance : 0.5% 1% 2% 5% 10%
ur cylindrical ultra high ohmic resistors,thick flm,non-inductive f ff #604fhyundaifi-valleyf,14-1fdang-dongf,fkunpofcity,fkyunggido,fkorea voicef+82-31-429-6379fffaxf+82-31-429-9127 resistors@3rlab.com ffwww.3rlab.com 2007?3rlab,inc. s pecifications temperature coefcient r-range 1g ? ftof9g ? 10g ? ftof 300g ? 400g ? ftof 1t ? 1.1t ? fftof 10t ? rftakenfatf 25 ocf andf70oc [ppm/ c] 200 300 1000 1500 voltage coefcient r-range 10g ?ftof 19 g ?f 20g ?ftof 100 g ? 200g ?ftof 1t? 10 t? measuredffatf 100vdcffandf 1000vdc vcr 0.002%/v 0.007%/v 0.01%/v 0.05%/v resistance tolerance [%] r-range 1g ? 2g ? f~10g ? 20g ? f~f 100g ? 200g ? ~1t ? 10t ? measuredffatf 1000vdc standard std. +/-1%(f) +/-2%(g) +/-5%(j) +/-10%(k) +/-20% custom +/-0.5 +/-1% +/-2% +/-5% +/-10% endurable harsh to environment (temperature ): -55oc to +195c max. broken temperature of resistives is 600 (for 70min.) thermal shock : mil-std-202, method- 107, cond. c, r 0.50% max. load life : 1.000 hours at rated power r 0.7% max. insulation resistance : 10,000m ? min. cap & lead of material: tinned cap., tinned copper wire encapsulation : anti-humidity epoxy conformal.coat resistive material : thick film. contact method between resistives and termination caps : individual conductive pads . so , called "ncr" non-contact resistance. cf.: the described specifcations & dimensions subject to change without notice. d erating curve rated power % 5 75 5 75 95 00 80 60 40 0 0 ambient-temperature (?c) 35 5 a b c d imensions [mm] willow technologies ltd. shawlands court, newchapel road, lingfield, surrey, rh7 6bl, united kingdom. + 44 (0) 1342 835234 + 44 (0) 1342 834306 info@willow.co.uk http://www.willow.co.uk
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